Browsing 2006 Auswireless Conference by Title

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Browsing 2006 Auswireless Conference by Title

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  • Joel Sing.; Soh, Ben. (2007-03-12)
    Over the last several years digital pests - namely viruses and spam - have reached epidemic proportions, severely impacting the usability of digital communication systems, primarily affecting email. These pests result in ...
  • Murray, Boyd M; Reisenfeld, Sam (2007-03-12)
    We investigate the effects of quantization and AGC (Automatic Gain Control) in MIMO (Multiple Input Multiple Output) wireless systems. We derive the cutoff rate equations for a deterministic MIMO channel with quantization ...
  • Dissanayake, Tharaka; Esselle, Karu P. (2007-03-12)
    In UWB system design and optimization, antennas are usually represented by a single transfer function relating the input voltage to the radiated electric field in the free space. However, the transfer function of planar ...
  • Harrison, Jeffrey.; Burnet, Craig.; Cowley, William.; Boers, Michael.; Hall, Leonard.; Holland, Ian.; Howarth, James.; Batty, Mike.; Weste, Neil.; Abbott, Derek.; Zhu, Yingbo.; Davis, Linda M.; Parker, Anthony. (2007-03-12)
    ISM spectrum at 60GHz has attracted attention for possible high-speed applications in wireless communications for well over ten years. However, no high volume applications have emerged. Despite progress in mm-wave ICs, the ...
  • Sevimli, Oya; Dyadyuk, Val; Abbott, David; Bunton, John; Kendall, Rod; Stokes, Leigh; Shen, Mei; Smith, Stephanie (2007-03-12)
    CSIRO ICT Centre is developing millimetre wave point-to-point links suitable for multi-gigabit wireless connectivity. Suitable spectrum for this purpose is allocated at the 60 GHz band and above. This paper reports a new ...
  • Vivek, Deshpande. (2007-03-12)
    An overview of wireless networks, cross-layer optimization techniques, and advances in wireless LAN technologies is presented. This paper presents a scalable and adaptive system-level approach to wireless multimedia in the ...
  • Roviras, Daniel.; Carey, Daniel.; Senadji, Bouchra. (2007-03-12)
    This paper proposes an alternative transmission structure to the existing direct-sequence code division multiple access (DSCDMA) technique in order to alleviate the decision variable from a substantial portion of the ...
  • Akache, Mahmood.; Navarrete, Gina Paola.; Momani, Mohammad.; Agbinya, Johnson I. (2007-03-12)
    This paper introduces a new algorithm for calculating trust in Wireless Sensor Networks based on the quality of services characteristics expected to be fulfilled by nodes. Figure 3 shows the algorithm being proposed as a ...
  • Ning, Low Zhen.; Seng, Leong Mook.; Wei, Li Le.; Krishnan, Sivanand.; Kyaw, Ohnmar. (2007-03-12)
    Loop antennas of circumference greater than a wavelength are generally known to have a good directive radiation pattern. However, for use in UWB applications, the variation of the radiation pattern with frequency must also ...
  • Daniels, Graham.; Suzuki, Hajime.; Hedley, Mark. (2007-03-12)
    Abstract—This paper examines mode adaptation for MIMOOFDM-BICM systems. Our results are based on measured MIMO-OFDM channels in an indoor environment at 5 GHz. We demonstrate that a simple zero-forcing spatial multiplexing ...
  • Holland, I. D; Cowley, W. G; and Burnet, C. (2007-03-12)
    We consider issues related to the design of a 60GHz short-range wireless local area network (WLAN) using low cost components and aiming at data rates on the order of 1Gbit/s. It is anticipated that the use of adaptive ...
  • Manteuffel, Dirk (2007-03-12)
    The design of UWB systems for consumer electronic application requires the integration of the antenna for aesthetical design reason. This paper discusses the influence of the integration on the performance of UWB antennas ...
  • Al-Obaisat, Yazeed; Braun, Robin (2007-03-12)
    With the recent technological advances in wireless communications, integrated digital circuits, and micro electro mechanical systems (MEMS); development of wireless sensor networks has been enabled and become dramatically ...
  • Pawlikowski, Krzysztof.; Perera, Shehan.; Sirisena, Harsha. (2007-03-12)
    An analysis of the impact of the packetization interval for constant bit rate traffic has been done in the context of IEEE 802.16 MAC layer. Bandwidth used for overheads which include lower layer headers as well as ...
  • Azim, Mohammad Abdul; Jamalipour, Abbas (2007-03-12)
    For the flat wireless sensor networks, we investigate the optimization problem of the routing path based on the metrics: distance, power and link usage to maximize the lifetime of the sensor networks. We employ the well ...
  • Flores-Centurion, Bruno (2007-03-12)
    The close relationship between the peak factor of a QPSK/OFDM system and the one from a 16-QAM/OFDM system is presented and analyzed. It is shown that a 16-QAM/OFDM system shows larger peaks and is more difficult to analyze ...
  • Simic, Ljiljana.; Berber, Stevan M. (2007-03-12)
    This paper presents the implementation of a multi-user chaos-based communication system in DSP. The system is based on the chaotic phase shift keying (CPSK) digital modulation scheme, where chaotic signals are used as the ...
  • Kubik, Kurt.; Einicke, Garry.; Zhang, HuiYao.; Homer, John. (2007-03-12)
    Currently, voice traffic (both local and long-distance) is gradually moving from traditional circuit-switched networks to IP-based, packet-switched networks. Another dominant trend is the development of mobile ad hoc ...
  • Claesson, Ingvar.; Mohammed, Abbas.; Khan, Muhammad Gufran.; Nordberg, J¨orgen (2007-03-12)
    The industrial environments are an important scenario for ultra wideband (UWB) communication systems. However, due to large number of metallic scatterers in the surroundings, the multipath offered by UWB channels is dense ...
  • Homer, John.; Gujrathi,Mandar.; Cendrillon, Raphael. (2007-03-12)
    Crosstalk in DSL leads to significant performance degradation and large losses in data-rate. Several crosstalk cancellation techniques have been proposed to address this problem, however, in the existing literature the ...