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2006 8th International Conference Advanced Communication Technology

Date 20-22 Feb. 2006

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  • [Front cover]

    Publication Year: 2006, Page(s): C1
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  • [Title page]

    Publication Year: 2006, Page(s): 1
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  • Copyright page

    Publication Year: 2006, Page(s): 1
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  • Messages

    Publication Year: 2006, Page(s):i - ii
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  • Conference committee

    Publication Year: 2006, Page(s): iii
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  • list-reviewer

    Publication Year: 2006, Page(s):iv - vi
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  • Schedule/agenda

    Publication Year: 2006, Page(s):vii - ix
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  • Table of contents

    Publication Year: 2006, Page(s):xi - l
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  • [Breaker page]

    Publication Year: 2006, Page(s): 1443
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  • A non-coherent UWB ranging for precision asset location with considering simultaneously operating piconets

    Publication Year: 2006, Page(s):4 pp. - 1448
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (4294 KB) | HTML iconHTML

    This paper proposes a non-coherent UWB ranging scheme employing 1-bit ADCs and energy collection for precision asset location within simultaneously operating piconets (SOP). To estimate the time of arrival (ToA) of the first multipath, the proposed method is based on the correlation operation with template signal. For an appropriate 1-bit ADC process, the threshold value is extracted adaptively fr... View full abstract»

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  • Spectral analysis and performance evaluation of one-chip VCXO with the Zig system

    Publication Year: 2006, Page(s):3 pp. - 1451
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2025 KB) | HTML iconHTML

    We have developed the ceramic VCXO (voltage controlled crystal oscillator) with the positive emitter coupled logic (PECL). It has the delay time less than 2 ns and the faster logic gate, and the high level output greater than 2.3 V and the low level output smaller than 1.68 V. In order to estimate their performance, we use the Zig system. It supports the precise performance evaluation of the VCXO ... View full abstract»

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  • Simulation of interference effects from UWB sources to a digital narrowband transmission system

    Publication Year: 2006, Page(s):6 pp. - 1457
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (5090 KB) | HTML iconHTML

    This paper reports on the study of the interference effects from 4 types of ultra wideband (UWB) sources on a QPSK transmission system by simulation. The culprit UWB sources were: multi-band orthogonal frequency-division multiple-access (MB-OFDM), direct-sequence code division multiple access (DS-CDMA), DS spread spectrum UWB (DS-SS UWB), and additive white Gaussian noise (AWGN). The MB-OFDM and D... View full abstract»

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  • A simple asynchronous UWB position location algorithm based on single round-trip transmission

    Publication Year: 2006, Page(s):4 pp. - 1461
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (3218 KB) | HTML iconHTML

    We propose a simple asynchronous UWB (ultra wide band) position location algorithm with low complexity, low power consumption and minimal processing delay. In the proposed algorithm, UWB pulses are only twice utilized for single RTT (round-trip transmission) based on ToA (time of arrival) principle. Hence, the proposed UWB position location algorithm can decrease power consumption as well as minim... View full abstract»

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  • Analysis of energy efficiency for low power transmission in WLAN with MIMO-OFDM and block ack mechanism

    Publication Year: 2006, Page(s):3 pp. - 1464
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (3572 KB) | HTML iconHTML

    Energy efficiency on wireless communication is an important issue of the battery power based wireless communication devices. This paper presents the energy efficiency model for MIMO OFDM WLAN system with the block ack mechanism and also presents the analysis of the system. Several parameters are considered such as number of antennas, modulation, path loss, payload size and number of burst transmis... View full abstract»

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  • [Breaker page]

    Publication Year: 2006, Page(s): 1465
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  • A new efficient BS scheduler and scheduling algorithm in WiBro systems

    Publication Year: 2006, Page(s):4 pp. - 1470
    Cited by:  Papers (5)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (440 KB) | HTML iconHTML

    In this paper, we propose an efficient structure of base station (BS) scheduler for the wireless broadband (WiBro) system. The BS scheduler consists of an uplink scheduling block, a downlink scheduling block and a channel quality information block. Both uplink and downlink scheduling blocks operate closely with a channel quality information block to schedule downlink packets and allocate uplink/do... View full abstract»

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  • Priority-based Call Admission Control of multiclasses in Mobile networks

    Publication Year: 2006, Page(s):1471 - 1474
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2910 KB) | HTML iconHTML

    One important thing is to guarantee QoS over wireless infrastructures. Call admission control plays a significant role in providing the designed QoS in wireless networks. This paper presents a traffic control scheme for improving QoS, traffic model and performance evaluation are described. We consider a traffic model has K QoS classes and each class has its own priority. Priority-based QoS in this... View full abstract»

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  • Efficient Fisheye state routing protocol using virtual grid in high-density ad-hoc networks

    Publication Year: 2006, Page(s):4 pp. - 1478
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (623 KB) | HTML iconHTML

    Fisheye state routing protocol improves traditional link-state routing in the MANET. By adopting the idea of GRID in FSR, we proposed an efficient GRID-based Fisheye state routing protocol (GFSR). GFSR provides the advantage of less control message exchange and more bandwidth to transmit data. A hierarchical architecture is used in GFSR. A gateway is elected in each grid and is the only node in th... View full abstract»

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  • Design, Development and Deployment of a Mobile E-Commerce Application for Rural South Africa -A Case Study

    Publication Year: 2006, Page(s):1479 - 1484
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (5698 KB) | HTML iconHTML

    Fort Hare University is located in the rural town of Alice in the Eastern Cape province of South Africa. The university runs several poverty alleviation projects in those villages to help the people. One of the prospering projects is the Lingelihle cooperative which specializes on making handmade artifacts for sale. The computer science department built an e-commerce Web site for marketing the pro... View full abstract»

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  • Flow-based forwarding scheme and performance analysis in mobile IPv6 networks

    Publication Year: 2006, Page(s):6 pp. - 1490
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (5146 KB) | HTML iconHTML

    The rising number of mobile users, the advent of various radio access technologies, and the increasing importance of IP services over wireless as well as wired networks pose a number of new design and deployment challenges. While mobile IP has been designed for mobility management in IP networks, it still has a high latency and signaling overhead during handoff. Some proposals for seamless handove... View full abstract»

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  • [Breaker page]

    Publication Year: 2006, Page(s): 1491
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  • Implementation of a real-time 3-D positioning sound synthesis algorithm for a handheld device

    Publication Year: 2006, Page(s):1493 - 1496
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2957 KB) | HTML iconHTML

    This paper describes an implementation of a positioning sound synthesis algorithm on an ARM 926 EJ-S based mobile device. To achieve a minimal complexity, sound sources are synthesized with a corresponding pair of approximated minimum phase filter and inter-aural time delay (ITD). The resulting complexity is measured as 13.48 million-instruction per second (MIPS). The quality of positioned sources... View full abstract»

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  • Design and implementation of Martini based Layer 2 VPN

    Publication Year: 2006, Page(s):4 pp. - 1500
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (4992 KB) | HTML iconHTML

    A VPN is a network composed of hosts and system in different locations. In the past, the most common way to connect these sites was to use an ATM or frame relay leased line, supplied by a service provider. These were traditionally straightforward to provide, as service provider networks were often implemented using a variety of protocols including ATM and frame relay. Recently, service providers h... View full abstract»

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  • An efficient low complexity encoder for MPEG advanced audio coding

    Publication Year: 2006, Page(s):5 pp. - 1505
    Cited by:  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2628 KB) | HTML iconHTML

    MPEG advanced audio coding (AAC) is the current state of the art in perceptual audio coding technology standardized by MPEG. Nevertheless the real-time constraint of reference software implementation for the AAC encoder provided by MPEG leads to a heavy computational bottleneck on today's portable devices. In this paper we review briefly the algorithms specified in the MPEG AAC standard and analyz... View full abstract»

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  • Error resilient MPEG-2 video coding schemes based on three layer error control coding

    Publication Year: 2006, Page(s):4 pp. - 1509
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2048 KB) | HTML iconHTML

    This paper proposes a new error resilient MPEG-2 video coding scheme based on the TLECC (three layer error control coding) techniques using information hiding. We embed the watermark signal into intra frames using a DCT-based algorithm, which shows very reliable outcome under noises and attacks. Meanwhile, we have implemented the DEMV (data embedding in motion vector) algorithm for inter frames. I... View full abstract»

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