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Consumer Electronics, IEEE Transactions on

Issue 2 • Date May 2006

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Displaying Results 1 - 25 of 70
  • IEEE Transaction on Consumer Electronnics - Table of Contents

    Publication Year: 2006 , Page(s): 0_1
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    Freely Available from IEEE
  • [Copyright notice]

    Publication Year: 2006 , Page(s): 0_2
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    Freely Available from IEEE
  • IEEE Consumer Electronics Society Administrative Committee

    Publication Year: 2006 , Page(s): i
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    Freely Available from IEEE
  • IEEE Consumer Electronics Society Officers and Committee Chairs

    Publication Year: 2006 , Page(s): ii
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    Freely Available from IEEE
  • Single-sensor camera image compression

    Publication Year: 2006 , Page(s): 299 - 307
    Cited by:  Papers (11)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (3571 KB) |  | HTML iconHTML  

    This paper presents digital camera image compression solutions suitable for the use in single-sensor consumer electronic devices equipped with the Bayer color filter array (CFA). The proposed solutions code camera images available either in the CFA format or as the full-color demosaicked data, thus offering different design characteristics, performance and computational efficiency. Extensive experimentation reported in this paper indicates that pipelines which employ a JPEG 2000 coding scheme achieve significant performance improvements compared to similar processing pipelines equipped with a JPEG coder. Other improvements, both objective and subjective, are observed in terms of color appearance, image sharpness and the presence of visual artifacts in the captured images. View full abstract»

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  • An automatic flicker detection method for embedded camera systems

    Publication Year: 2006 , Page(s): 308 - 311
    Cited by:  Papers (3)  |  Patents (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1169 KB) |  | HTML iconHTML  

    The last few years have seen explosive growth in the market for inexpensive cameras embedded in mobile electronic systems such as cell phones. These embedded cameras often use CMOS image sensors with an electronic rolling shutter. Rolling shutter image sensors are susceptible to highly objectionable artifacts caused by flickering AC lighting fixtures. Flicker artifacts can easily be avoided if the AC power frequency is known. A technique for automatically detecting flicker is presented. View full abstract»

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  • A method for extracting region of interest based on attractiveness

    Publication Year: 2006 , Page(s): 312 - 316
    Cited by:  Papers (5)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1320 KB) |  | HTML iconHTML  

    In this paper, we propose a method to extract a region including the objects of interest based on image features such as edge magnitude and color contrast. Our method differs from template or model-based top-down approaches, as it can be applied to images containing any kind of objects. We evaluated our method on arbitrary selected images and in this paper we show that results comparable to human performance can be obtained. View full abstract»

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  • A low complexity sign ML detector for symbol and frequency synchronization of OFDM systems

    Publication Year: 2006 , Page(s): 317 - 320
    Cited by:  Papers (6)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (110 KB) |  | HTML iconHTML  

    Frame and frequency synchronization for guard-interval-based orthogonal frequency multiplexing (OFDM) systems require a correlator to correlate the last Ng samples of the received OFDM symbol with their copies ahead. The straightforward implementation of this correlator results in high hardware complexity and high power consumption to perform Ng complex additions for each correlator output. In this paper, only the sign bits of correlator results are used to estimate the frame and the frequency offset, and for the sake of reducing complexity and power consumption, we also present other two methods. The Wallace-Tree adder and shift registers can be replaced by an up/down accumulator and dual port memory respectively. Simulation results show that it can work properly over both AWGN and multipath fading channels, with very low hardware complexity and low power consumption. View full abstract»

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  • Efficient time-domain residual ISI cancellation for OFDM-based WLAN systems

    Publication Year: 2006 , Page(s): 321 - 326
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (454 KB) |  | HTML iconHTML  

    In orthogonal frequency-division multiplexing (OFDM) systems, the multipath components whose delays exceed cyclic prefix (CP) cause intersymbol interference (ISI) and intercarrier interference (ICI), which may degrade system performance severely. In this paper, we propose two novel iterative cyclicity restoration (CR) schemes to efficiently cancel these interferences for OFDM-based wireless local area network (WLAN) systems. The time-domain parallel CR (PCR) scheme is introduced first. Using time-domain iterative solution, PCR provides much lower computational complexity than conventional CR. Furthermore, in order to improve the performance of PCR, we present successive CR (SCR) method based on Gauss-Seidel iteration. SCR offers faster convergence speed than PCR without increasing the computational cost. It is shown that both PCR and SCR need only a few iterations to approach the system performance with sufficient CP. SCR has approximately the same performance as conventional CR with much lower computational complexity for WLAN applications. View full abstract»

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  • Adaptive beam steering reception system for ISDB-T based on pre-FFT diversity technique

    Publication Year: 2006 , Page(s): 327 - 335
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1062 KB) |  | HTML iconHTML  

    The reception of high-definition television in a mobile environment with the same quality as that achieved at home has been considered to be difficult to achieve. In an attempt to solve this problem, we have developed an adaptive beam steering reception system and evaluated the performance of this new system by both indoor and outdoor experiments involving the reception of high-definition television. The experimental results revealed that the reception performance was significantly improved, such that terrestrial digital television broadcasts can be received in high-speed moving environments, and with the same stability as broadcasts that are received at home in a fixed reception area. View full abstract»

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  • Time-variant Doppler frequency estimation and compensation for mobile OFDM systems

    Publication Year: 2006 , Page(s): 336 - 340
    Cited by:  Papers (8)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (678 KB) |  | HTML iconHTML  

    In mobile OFDM communication systems, Doppler spread leads to the loss of orthogonality between the sub-carriers, limiting the achievable throughput of the moving transceivers. In this paper, the effect of Doppler spread in Rayleigh fading channels is investigated, and a method of time-variant Doppler frequency estimation and compensation is proposed for mobile OFDM systems. Computer simulation results are included to support our development. View full abstract»

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  • A robust timing and frequency synchronization algorithm for DVB-H receiver

    Publication Year: 2006 , Page(s): 341 - 346
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (505 KB) |  | HTML iconHTML  

    A robust symbol timing and carrier frequency synchronization scheme applicable to orthogonal frequency division multiplexing system is presented. The proposed method is based on correlation and energy detection in time domain. The estimator has a steep timing metric and can provide delay-spread information about the channel. It means that the proposed method can distinguish ISI (inter-symbol interference) free region from ISI region with optimum timing position acquired. The computer simulation results show that the proposed algorithm can track time varying channel condition and has much smaller MSE (mean squares error) than that of ML estimation algorithms. View full abstract»

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  • Friendly coexistence of voice and data traffic in IEEE 802.11 WLANs

    Publication Year: 2006 , Page(s): 347 - 354
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (691 KB) |  | HTML iconHTML  

    The combination of VoIP and WLAN technologies has created a new attractive service, wireless VoIP, and its interest has been increasingly growing in a variety of environments such as offices and public areas. However, mixing voice with data traffic introduces QoS issues because 802.11 DCF does not provide any QoS mechanism. In this paper, an enhanced version of the legacy DCF is proposed in order to support friendly coexistence of voice and data. Every downlink transmission of data packets in an AP, voice packets pending in its queue are simultaneously sent together. It can be easily implemented with packet bursting technique. Thus, voice traffic is hardly interfered by dynamic data load, and its QoS can be consistently protected within an acceptable level. Additionally, the proposed MAC scheme is fully backward compatible with DCF, and requires only partial modifications of the AP MAC protocol. The simulation results show that the proposed scheme achieves a high level of voice QoS with data load dynamics. In other words, our solution enables voice and data traffic to coexist harmoniously, greatly reducing interference of data with voice. View full abstract»

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  • Adaptive channel management scheme for video broadcasting services

    Publication Year: 2006 , Page(s): 355 - 362
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (486 KB) |  | HTML iconHTML  

    Traditional unicast VOD systems require huge amounts of the server network's bandwidth, so near-VOD systems using broadcast protocols have been proposed to reduce the bandwidth requirement. Such systems have not been able to allocate channels dynamically to adapt to environments where the popularity distribution of videos changes, because of the essential inflexibility of existing broadcasting protocols. We address dynamic channel allocation for video broadcasting services, and propose a channel management technique that can adapt well to the dynamic environment, using a flexible broadcasting scheme presented in our previous work (2005). Our channel management scheme decides how many channels should be allocated to each video to maximize the system throughput, based on the video's popularity and reneging probability. The proposed scheme has been verified using extensive simulation. View full abstract»

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  • Generalized conservative staircase data broadcasting protocol for video-on-demand

    Publication Year: 2006 , Page(s): 363 - 370
    Cited by:  Papers (6)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (609 KB) |  | HTML iconHTML  

    The staircase broadcasting scheme has optimal performance for the buffer storage and the disk transfer rate. However, this scheme sometime fails to provide the video data to the users in time. This limitation has been overcome in the conservative staircase scheme developed recently. In this scheme, the video segments are downloaded and stored at the client's site in their entirety before they are required for viewing. It does overcome the non-delivery of the video data to the users in time, but at the cost of extra resources. In this paper, we propose a new scheme named as generalized conservative staircase scheme, which requires less amount of resources and does not suffer from the problem of non-delivery of video data. The proposed scheme requires less amount of bandwidth by downloading the video data at slower rate. Thus this scheme has better performance for the viewer's waiting time and requires less amount of buffer storage and the disk transfer rate as compared to the conservative staircase scheme. View full abstract»

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  • An analysis on the performance of the forward and return interaction channels in DVB-RCS

    Publication Year: 2006 , Page(s): 371 - 376
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (813 KB) |  | HTML iconHTML  

    The next generation consumer level interactive services require reliable and constant communication for both mobile and static users. The digital video broadcasting (DVB) group has exploited the rapidly increasing satellite technology for the provision of interactive services and launched a standard called digital video broadcast through return channel satellite (DVB-RCS). DVB-RCS relies on DVB-satellite (DVB-S) for the provision of forward channel. The digital signal processing (DSP) implemented in the satellite channel adapter block of these standards use powerful channel coding and modulation techniques. The investigation is concentrated towards the forward error correction (FEC) of the satellite channel adapter block, which will help in determining, how the technology copes with the varying channel conditions and user requirements. View full abstract»

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  • Performance evaluation of DVB-RCT return path in fading channels with added diversity

    Publication Year: 2006 , Page(s): 377 - 382
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (499 KB) |  | HTML iconHTML  

    The radio spectrum is a finite resource and it is important that all users exploit it efficiently. Consequently, modulation schemes used for the wireless environment should utilize the RF channel bandwidth, and the transmitted power, as efficiently as possible. Across Europe, the digital video broadcasting (DVB) group has proposed a technique for a high data-rate return path known as DVB-return channel through terrestrial (DVB-RCT) specifically for consumer device convergence (full Internet connectivity through a television set). The introduction of adaptive M-ary quadrature amplitude modulation (MQAM) into the DVB-RCT standards as opposed to static modulation (as used in the DVB-terrestrial (DVB-T) standard) has enhanced the performance of bidirectional communication. In this paper, the impact of using diversity techniques in such systems is investigated. In specific, the gain, obtained from utilizing this combination of adaptive MQAM and diversity techniques in the system, is also shown. View full abstract»

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  • Control based mobile ad-hoc networks for video communications

    Publication Year: 2006 , Page(s): 383 - 391
    Cited by:  Papers (7)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (760 KB) |  | HTML iconHTML  

    This paper presents a feedback control scheme for transmission of video signals over mobile ad-hoc channels. The scheme is a combination of cross-layer (local) feedback and receiver feedback. The receiver feedback is based on the real time transport control protocol (RTCP), which is designed to provide an end-to-end feedback assessment of multihop transmission channels by tracking packet receptions in synchronization with the video frame rate. The control packet carries an overlapping bit-pattern in order to cope with losses on the reverse link. Assisting the receiver feedback is a local feedback, which aims at controlling the packet transmission flow with respect to the ad-hoc routing characteristics. The combined feedback scheme, together with a bitrate control and packet-loss compensation strategy, have been shown to be very effective in improving the ad-hoc network reliability for transmission of H.264/RTP/UDP/IP packets over multihop fading channels. View full abstract»

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  • Design of HD-quality streaming networks for real-time content distribution

    Publication Year: 2006 , Page(s): 392 - 401
    Cited by:  Papers (7)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (643 KB) |  | HTML iconHTML  

    Recent advances in storage and networking technology are rapidly changing users' TY viewing patterns. Personal video recorders (PVRs) enable people to watch what they want when they want by recording TV programs into local disks. In addition, PVRs can easily share TV contents over peer-to-peer networks once they are equipped with broadband connections. However, the current broadband bandwidth makes it difficult to support HD-quality TV content streaming on the Internet. In this paper, we propose a novel HD-quality streaming architecture for real-time broadcast content distribution. We develop two efficient scheduling schemes, matching a communication pair and switching/replication for system load-balancing, to further utilize network and disk bandwidth. We also evaluate buffer requirement to continue storing time-shifted programs without missing any broadcast data. By extensive simulation experiments, we show the effect of our proposed schemes and time-shifting policy. View full abstract»

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  • Implementation of a cable access point device for ubiquitous network applications

    Publication Year: 2006 , Page(s): 402 - 406
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (722 KB) |  | HTML iconHTML  

    This paper presents the implementation of a low-cost, data access-efficient, sample and easy to deployment, waterproof, and heatproof outdoor cable access point (CAP) device for ubiquitous network applications .The proposed CAP device is consisted of a cable modem (CM) and a wireless local area network (WLAN) access point (AP) to be integrated inside the chassis of an existing outdoor CATV amplifier. The main purpose of the CAP device is to effectively extend the coverage of outdoor wireless access link and to further provide a data access-efficient service for construction of a ubiquitous networking environment in the metropolitan area. Besides, to ensure the safety and validity for data accessing and information exchanging in the wireless broadband network, a security certifying mechanism of authentication, authorization, and accounting (AAA) is also integrated in the CAP device. The experimental results show that the performance and robustness of the CAP devices is suitable for ubiquitous network applications. View full abstract»

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  • Automating remote configuration mechanisms for home devices

    Publication Year: 2006 , Page(s): 407 - 413
    Cited by:  Papers (8)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (995 KB) |  | HTML iconHTML  

    We examine the automatic configuration of consumer electronics devices delivering remote services to the home network. This environment has two particular aspects; it addresses a mass market, hence any automated approach for streamlined deployment, operation and scalability is of prime importance; it also relies on standardization due to its high dependency on communication protocols and services. Modern standards in this domain, along with the invocation of state of the art technologies around XML, give a totally new look at old management problems. More importantly, these standards directly and primarily address configuration issues in a structured and comprehensive way. This paper promotes the view that these standardizations work, pursued and presented in text form by the relevant standardization bodies. It also suggests standard-based methodologies and tools for remote configuration, management, life-cycle support and testing of devices. This inherently ensures compliance to the standards and enables a streamlined design, thus facilitating the provisioning and management of services offered to subscribers. Our contribution concerns relevant tool suites covering to some variable extend all of these aspects. We emphasize the logical succession of each consecutive step/tool and draw attention to the fact that the resulting interrelationships originate from a common source (i.e. the TR-069 standard) and reflect generic needs of the user/player in question. View full abstract»

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  • MONETA: an embedded monitoring system for ubiquitous network environments

    Publication Year: 2006 , Page(s): 414 - 420
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (849 KB) |  | HTML iconHTML  

    Accurate and efficient monitoring of dynamically changing environments is one of the most important requirements for ubiquitous network environments. To exploit these ubiquitous environments, we designed and implemented a monitoring system called MONETA that can obtain sensor data transmitted from wireless sensors to hub nodes in embedded equipment. MONETA adopts Web technology for the implementation of a simple but efficient user interface that allows an operator to visualize any of the processes, elements, or related information in a convenient graphic form. We developed MONETA using a kernel wrapper mechanism. This wrapper is a software module that enables us to monitor the state information of several embedded devices without any modification to the kernel. This wrapping method has allowed us to increase the portability of the monitoring system to other platforms and reduce the time required to write monitoring software modules. View full abstract»

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  • Controlling the smart home from TV

    Publication Year: 2006 , Page(s): 421 - 429
    Cited by:  Papers (19)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (969 KB) |  | HTML iconHTML  

    In this paper we introduce a cooperative environment between the interactive digital TV (IDTV) and the networked home with the aim of allowing the interaction between interactive TV applications and the controllers of the in-home appliances in a natural way. Concretely, we have selected the MHP (multimedia home platform) standard, well-known in the IDTV field, and OSGi (open service gateway initiative), the most widely used open platform to set up residential gateways. To overcome the radically different conceptions below these two specifications we define a new kind of application, coined as XbundLET, which acts as a bridge between both worlds allowing MHP applications to use the OSGi services and vice versa, i.e., allowing OSGi applications to take advantage of the MHP functionality. As a further step towards integrated residential gateways, we also propose a semantic description for OSGi services at the smart home that facilitates services discovery and invocation from broadcast MHP applications. View full abstract»

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  • High speed transmission for a coaxial cable based in-home network

    Publication Year: 2006 , Page(s): 430 - 435
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (481 KB) |  | HTML iconHTML  

    The in-home network is a crucial system for ubiquitous multimedia environments, in order to provide economical and effective high data rate transmission, we propose a transmission scheme based on the multi-carrier technique. We employ a coaxial cable channel as the transmission medium deployed for cable television (CATV). Through experiments, we show that it is possible to transmit a signal centered at 1.2 GHz with 528 MHz bandwidth without giving severe interference to the CATV system. With this observation, we propose an orthogonal frequency division multiplexing (OFDM)-based transmission scheme motivated by successful implementation of multiband OFDM (MB-OFDM) as the short range wireless transmission medium. The proposed OFDM-based system with several elementary techniques specialized in the coaxial cable for home network (CoHoNet) can achieve robust transmission over several experimental channel realizations with low power consumption. View full abstract»

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  • The v2.0+EDR Bluetooth SOC architecture for multimedia

    Publication Year: 2006 , Page(s): 436 - 444
    Cited by:  Papers (8)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1770 KB) |  | HTML iconHTML  

    This paper presents a Bluetooth system on chip (SOC) architecture for multimedia applications. The SOC includes all necessary baseband-parts, RF-parts, a sub-band codec (SBC) and an application processor to achieve a Bluetooth specification v2.0+EDR (enhanced data rate). Dual bus architecture is selected to improve data transmission efficiency between a baseband and a system bus. The receiver uses an optimized low-IF (1.5 MHz) architecture which is trade-off between power and performance on CMOS technology. The transmitter uses a direct up conversion architecture. This chip occupies a die size of 28 mm2 in a 0.18 μm CMOS. This chip and a flash memory are put into multi chip package (MCP). The maximum current consumption of the total chip is 65 mA at the TX mode. The internal supply voltages of RF- and digital-parts are 1.8 V. First measurement results meet most of the Bluetooth specification v2.Q+EDR and show the suitability of the presented single-chip concept. View full abstract»

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Aims & Scope

The main focus for the IEEE Transactions on Consumer Electronics is the engineering and research aspects of the theory, design, construction, manufacture or end use of mass market electronics, systems, software and services for consumers.

 

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
R. Simon Sherratt, IEEE Fellow
Professor of Consumer Electronics
School of Systems Engineering
The University of Reading
Reading, Berkshire RG6 6AY  U.K.
r.s.sherratt@reading.ac.uk; sherratt@ieee.org
Phone:+44 (0) 118 3788588