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International Conference on Digital Telecommunications (ICDT'06)

Date 29-31 Aug. 2006

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Displaying Results 1 - 25 of 82
  • International Conference on Digital Telecommunications - Cover

    Publication Year: 2006, Page(s): c1
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  • International Conference on Digital Telecommunications - Title

    Publication Year: 2006, Page(s):i - iii
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  • International Conference on Digital Telecommunications - Copyright

    Publication Year: 2006, Page(s): iv
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  • International Conference on Digital Telecommunications - Table of contents

    Publication Year: 2006, Page(s):v - x
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  • Preface

    Publication Year: 2006, Page(s): xi
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  • ICDT Committees

    Publication Year: 2006, Page(s): xii
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  • A Data-Flow Platform for Implementing Algorithm-Dependent ASIC Hardware Using Data-Driven Processors

    Publication Year: 2006, Page(s): 1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (254 KB) | HTML iconHTML

    The design details of a new data driven processor (DDP) which simplifies data management and processor hardware is demonstrated. The processor consists of an input port for handling external real-time data, a second input port for exchanging networked inter-processor data, a multi-port RAM, a flag memory, an ALU and a controller. The key benefit of this processor is to be able to handle real-time ... View full abstract»

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  • Design of Mobile Receiver in Ultrawideband Impulse Radio System Using Time-Hopping and PPM Modulation

    Publication Year: 2006, Page(s): 2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (231 KB) | HTML iconHTML

    Ultra wideband (UWB) impulse radio (IR) system has recently being considered for several applications due to its attractive features that include low-power carrierless and ample multipath diversity. Among the various modulation and multiple access schemes, this paper deals with time-hopping (TH) binary pulse position modulation (PPM) operating in the presence of frequency-selective multipath fadin... View full abstract»

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  • Data-aided Equalization Scheme for Filtered Multitone Modulation System

    Publication Year: 2006, Page(s): 3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (108 KB) | HTML iconHTML

    Data-aided equalizers are adopted in filtered multitone modulation systems. A new algorithm based on factor graph is proposed in order to combat the non-causality of traditional data-aided equalization scheme. Simulation results show that data-aided equalizers have better performance than decision feedback equalizers View full abstract»

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  • HNN-based Multiuser Receiving for Uplink CDMA Systems

    Publication Year: 2006, Page(s): 4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (115 KB) | HTML iconHTML

    In this paper, novel Hopfield neural network (HNN) technique is proposed for the multiuser receiving of the uplink CDMA system. The proposed receiving scheme resolves the collective effects of both the inter-symbol interference due to the multipath fading channel and the multiple access interference in the multiuser uplink CDMA communication. Simulations demonstrate the effectiveness of the propos... View full abstract»

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  • Notice of Violation of IEEE Publication Principles
    Viterbi Algorithm in Continuous-Phase Frequency Shift Keying

    Publication Year: 2006, Page(s): 5
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB) | HTML iconHTML

    Notice of Violation of IEEE Publication Principles

    "Viterbi Algorithm in Continuous-Phase Frequency Shift Keying"
    by Hailun Tan
    in the Proceedings of the International Conference on Digital Communications, 2006 (ICDT'06), August 2006

    After careful and considered review of the content and authorship of this paper by a duly constituted expert committee, this paper has been found ... View full abstract»

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  • Perceptual Acoustic Echo Suppressor for Audio Communication over Packet Networks

    Publication Year: 2006, Page(s): 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (95 KB) | HTML iconHTML

    This paper presents an acoustic echo suppressor based on spectral subtraction that takes into account the perceptual effects of human hearing. This paper also propose here a method where the echo delay does not increase the computational cost. Effectively, in wireless system, it is not uncommon to have round trip delay up to 300 ms and even more. On most of echo cancellers, increasing the tail len... View full abstract»

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  • Skip Prediction and Early Termination for Fast Mode Decision in H.264/AVC

    Publication Year: 2006, Page(s): 7
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (208 KB) | HTML iconHTML

    his paper proposes a fast mode decision algorithm for H.264/AVC based on skip prediction and early termination techniques. The skip decision is based on a partially computed sum of absolute differences metric combined with utilization of the Lagrangian rate-distortion cost function from the previous frame. A statistical analysis of the spatio-temporal characteristics of the rate distortion cost fu... View full abstract»

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  • Spatio-Temporal MIMO Systems for Multiuser Communications under Frequency Selective Fading

    Publication Year: 2006, Page(s): 8
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (181 KB) | HTML iconHTML

    This paper presents multiple input multiple output (MIMO) system adopting spatio-temporal processing in both transmitter and receiver sides for multiuser communication under frequency selective fading (FSF). The proposed system assumes the perfect channel state information (CSI) at the base station (BS), and all the weights are computed at BS and then fed back to mobile stations (MSs). The weights... View full abstract»

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  • A Novel Channel Estimator Based on Polynomial Fitting Method in PSAM Communication Systems

    Publication Year: 2006, Page(s): 9
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (138 KB) | HTML iconHTML

    A novel PF (polynomial fitting) method with great complexity degradation is proposed to get refined channel estimation for the PSAM (pilot symbol assisted modulation) communication systems in this paper. Different from the classical channel estimator based on the linear interpolation of the received pilot signals, the PF-based channel estimator is developed to avoid the repetitious process of the ... View full abstract»

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  • An Artificial Immune-based Feature Interaction Detection Method

    Publication Year: 2006, Page(s): 10
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (157 KB) | HTML iconHTML

    Based on analyzing the similarities of the feature interaction detection system and artificial immune system, an artificial immune-based feature interaction detection method is proposed to detect all kinds of feature interactions in the next generation network, which references the multi-layer protection of the immune system and some immune principles, including the immune recognition, co-stimulat... View full abstract»

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  • Adaptive Reduced-Rank Interference Suppression for MIMO Decoding

    Publication Year: 2006, Page(s): 11
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (176 KB) | HTML iconHTML

    We present an adaptive reduced-rank solution for robust decoding of spatial multiplexed multiple-input multiple-output (MIMO) wireless communications using the multi-stage Wiener filter (MSWF). The huge spectral efficiency gains promised by spatial multiplexing schemes, such as vertical Bell Labs space time (V-BLAST) and space-division multiple access (SDMA), are difficult to realize for less than... View full abstract»

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  • Kids Finder Through Bluetooth Technology

    Publication Year: 2006, Page(s): 12
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (203 KB) | HTML iconHTML

    A statistic on children been kidnapped or been lured away by strangers is continuously increased. There is no safer place for kids. For parents or guardians, taking care of their children is not an easy task. Until now, a few wireless or mobile devices based on GPS, Wi-Fi and radio frequency are available in the market enabling the parent to monitor child's whereabouts. Each technology is categori... View full abstract»

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  • A New Rate Control Scheme for H.264/AVC

    Publication Year: 2006, Page(s): 13
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (179 KB) | HTML iconHTML

    A novel achievement to optimum bit allocation for H.264/AVC is presented, which is different from JVT-O016 by using a simple linear rate instead of the well-known MPEG-4 Q2 model. To find the global optimum, we resort to Lagrange optimization technique and develop a close-form formula to the optimum problem. It is shown via extensive experiments that the new rate control (RC) scheme exceeds JVT-G0... View full abstract»

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  • Collaborative Video Annotation Environments: Implemented Features and a new Approach for Object Detection and Recognition

    Publication Year: 2006, Page(s): 14
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (437 KB) | HTML iconHTML

    In the different phases of a movie production there is a need for intensive discussion about the produced sequences. Special problems can appear if the discussion members are located at different places and have to describe precisely their critics for the video production. The only possibility to avoid this problem is a meeting that in general involves loss of time and costs. This paper describes ... View full abstract»

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  • ADAPTIVE PRUNED 4 × 4 DCT ALGORITHM FOR H.264

    Publication Year: 2006, Page(s): 15
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (209 KB) | HTML iconHTML

    A new integer 4times4 transform is adopted in the new video coding standard H.264/AVC. To reduce the computation load of the new transform, the SSAVT model for 8times8 transform is applied into H.264 4times4 transform with some modifications. Then, three classes of pruned block are defined and the corresponding simplified butterfly computation processes are designed. Furthermore, a fast DCT algori... View full abstract»

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  • Fast Motion Estimation using Evolutionary Strategy Search Algorithm

    Publication Year: 2006, Page(s): 16
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (247 KB) | HTML iconHTML

    Evolutionary strategy search (ESS) algorithm is a novel method for implementing fast block motion estimation (ME) using evolutionary strategy (ES). It uses a combination of ideas based on existing ME algorithms and employs a novel (1+deltalambda) ES implementation. ESS is essentially a succession of random searches, but by controlling the placement and distribution of these searches in a simple wa... View full abstract»

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  • A Fast Coefficients Convertion Method for the Transform Domain MPEG-2 to H.264 Transcoding

    Publication Year: 2006, Page(s): 17
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (231 KB) | HTML iconHTML

    Converting MPEG-2 8-tap discrete cosine transform (DCT) coefficients to H.264/AVC 4-tap integer transform (IT) coefficients is one of the indispensable operations for transcoding MPEG-2 to H.264 in the transform domain. Motion information in the input MPEG-2 sequence should be reused as much as possible to speed up the transcoding process. Motivated by this, we first exploits the distribution info... View full abstract»

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  • Fast Frame/Field Coding for H.264/AVC

    Publication Year: 2006, Page(s): 18
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (386 KB) | HTML iconHTML

    Picture-adaptive frame/field (PAFF) coding and macroblock-adaptive frame/field (MBAFF) coding in the new H.264/AVC can improve compression efficiency for interlaced video coding. It is assumed that the optimal solution can be found by employing a multi-pass strategy, which encodes a macroblock or picture with all possible modes and chooses the one with smallest rate-distortion cost, such as the th... View full abstract»

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  • A Simplified Scalable Wavelet Video Codec with MCTF Structure

    Publication Year: 2006, Page(s): 19
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1597 KB) | HTML iconHTML

    In recent years, wavelet-based image and video coding systems that utilize a wide range of spatial-temporal-SNR scalability with state-of-the-art coding performance has been proposed in the literature. The strong market acceptance of the new scalable technology stems from advances in network technology as well as various requirements from terminal users since computer network is becoming the main ... View full abstract»

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