By Topic

2006 IEEE International Multitopic Conference

Date 23-24 Dec. 2006

Filter Results

Displaying Results 1 - 25 of 105
  • Authors index

    Publication Year: 2006, Page(s):nil1 - nil2
    Request permission for commercial reuse | PDF file iconPDF (1125 KB)
    Freely Available from IEEE
  • Copyright page

    Publication Year: 2006, Page(s): nil3
    Request permission for commercial reuse | PDF file iconPDF (283 KB)
    Freely Available from IEEE
  • Copyright page

    Publication Year: 2006, Page(s): nil4
    Request permission for commercial reuse | PDF file iconPDF (105 KB)
    Freely Available from IEEE
  • Covers

    Publication Year: 2006, Page(s): C1
    Request permission for commercial reuse | PDF file iconPDF (65 KB)
    Freely Available from IEEE
  • Covers

    Publication Year: 2006, Page(s): C2
    Request permission for commercial reuse | PDF file iconPDF (65 KB)
    Freely Available from IEEE
  • [Title page]

    Publication Year: 2006, Page(s): C3
    Request permission for commercial reuse | PDF file iconPDF (471 KB)
    Freely Available from IEEE
  • [Title page]

    Publication Year: 2006, Page(s): C4
    Request permission for commercial reuse | PDF file iconPDF (285 KB)
    Freely Available from IEEE
  • [Title page]

    Publication Year: 2006, Page(s): C5
    Request permission for commercial reuse | PDF file iconPDF (289 KB)
    Freely Available from IEEE
  • Organizing Committee

    Publication Year: 2006, Page(s): nil5
    Request permission for commercial reuse | PDF file iconPDF (447 KB)
    Freely Available from IEEE
  • Preface

    Publication Year: 2006, Page(s): nil6
    Request permission for commercial reuse | PDF file iconPDF (57 KB) | HTML iconHTML
    Freely Available from IEEE
  • Heuristics Assisted Detection in High Speed Wireless Communication Systems

    Publication Year: 2006, Page(s):1 - 5
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4969 KB) | HTML iconHTML

    Swarm intelligence assisted multi-input-multi-output (MIMO) system is presented in this paper. Efficient symbol detection of MIMO system is performed using swarm-intelligence inspired iterative robust stochastic algorithm. Optimized detection based on "memetic" (local search) particle swarm optimization (MPSO) is also proposed. These PSO-MIMO and MPSO-MIMO system detectors significantly reduce the... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Non-Uniform DMT Transceiver for the Power-Line Channel in the High Frequency Range

    Publication Year: 2006, Page(s):6 - 10
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5224 KB) | HTML iconHTML

    A reliable and high speed communication system over the low voltage distribution power-lines, necessitates a robust modulation technique, such as discrete multitone (DMT). Power-lines represent a harsh, noisy and multipath channel, resulting in severe signal attenuation and inter-symbol interference (ISI). DMT being a multi-carrier modulation technique involves much simpler zero-forcing channel eq... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Investigation and Performance Evaluation of different Bluetooth voice packets against ambient error conditions

    Publication Year: 2006, Page(s):11 - 16
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6380 KB) | HTML iconHTML

    Bluetooth allows three high quality voice (HV) packets to carry voice information over the Industrial, Scientific and Medical (ISM) band. The bit error rate (BER) measurements have been used in this report to evaluate the performance of voice packets in the presence of noise and interference. Starting from the problem definition and classifying the voice packets into HV1, HV2 and HV3 type, Bluetoo... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • SIC Detector for Hi Orthogonal Space-Time Block Coded System over Time-Varying Rayleigh-Fading Channel

    Publication Year: 2006, Page(s):17 - 21
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4225 KB) | HTML iconHTML

    An important assumption in all orthogonal space-time block coded (OSTBC) systems is that the channel behaves same throughout the codeword length (i.e. quasi-static). However, if the channel is time-varying then the conventional OSTBC detector can suffer from a large error floor at high signal-to-noise ratios. In this paper, the impact of a time-varying, Rayleigh fading channel on the performance o... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Design, Performance and Comparison of Four Different Ku-Band Common-Source DROs

    Publication Year: 2006, Page(s):22 - 27
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5536 KB) | HTML iconHTML

    This paper describes the design and performance of four Ku-band common-source dielectric resonator oscillators (DROs). The first uses open-circuited stubs at the source to create instability, while the second employs an additional dielectric resonator (DR) for the same purpose. The third has the source connected to a 50Omega impedance and the fourth has the source grounded. A comparison is made be... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Peak-To-Average Power Ratio Reduction by Zero Forcing Peaks

    Publication Year: 2006, Page(s):28 - 31
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3468 KB) | HTML iconHTML

    One of main drawback of orthogonal frequency division multiplexing (OFDM) is high peak to average power ratio (PAPR) which causes non-linearity at power amplifier stage. In this paper a new technique for reducing PAPR of the OFDM signal is implemented. This method does not spread the OFDM signal bandwidth and no additional IFFT has to be performed thus has less computational complexity. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Random Key Distribution Scheme for Securing Wireless Sensor Network

    Publication Year: 2006, Page(s):32 - 36
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5826 KB) | HTML iconHTML

    Sensor networks are expected to play an essential role in the upcoming age of pervasive computing. Due to their constraints in computation, memory, and power resources, their susceptibility to physical capture, and use of wireless communications, security is a challenge in these networks. The scale of deployment of wireless sensor networks requires careful decisions and trade-offs among various se... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Multicode Multicarrier Interleave Division Multiple Access Communication

    Publication Year: 2006, Page(s):37 - 41
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3808 KB) | HTML iconHTML

    A new mulitcode multicarrier interleave division multiple access (MC-MC-IDMA) system is proposed and analyzed in frequency selective channels. The system supports different modulation schemes for variables data rates. Each user transmits his message by choosing a sequence from an orthogonal code-set. An MC-MC-IDMA system achieves spreading gains both in time and frequency domains. Bit error rate o... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Efficient Power Variance Algorithms for PAPR Reduction in OFDM Signals

    Publication Year: 2006, Page(s):42 - 46
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4065 KB) | HTML iconHTML

    In this paper, the expression of the power variance (PV) of an OFDM symbol has been explored for peak to average power ratio (PAPR) reduction. It is seen through simulation results and complementary cumulative distribution function (CCDF) curves that PV expression used in PAPR comparison can be simplified to a point where it becomes practical to use such a computationally complex PV expression for... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Sensitivity Analysis of Hybrid DS / FH Spread Spectrum Communication System Capacity

    Publication Year: 2006, Page(s):47 - 51
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4166 KB) | HTML iconHTML

    Sensitivity of noncoherent synchronous hybrid direct sequence (DS)/frequency hopping (FH) multiple access communication system capacity is analyzed. System operates through the channel with additive white Gaussian noise (AWGN) and employs differential phase shift keying modulation (DPSK) with random DS code sequence and frequency hopping pattern. System capacity, defined as total number of possibl... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Performance of Hybrid MQAM-LFSK (HQFM) OFDM Transceiver in Rayleigh Fading Channels

    Publication Year: 2006, Page(s):52 - 55
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4450 KB) | HTML iconHTML

    In this contribution we propose a hybrid MQAM/LFSK modulation (HQFM) scheme and showed its performance over Rayleigh fading channels using different modulation formats and Doppler spread. The simulation invokes a PN sequence training based decision feedback equalizer. The performance of the proposed scheme was compared with conventional 256QAM-OFDM when communicating over channels exhibiting multi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An Analytical Model for SLTDM to Reduce the PAPR and ICI in OFDM Systems for Fast Varying Channels

    Publication Year: 2006, Page(s):56 - 61
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5693 KB) | HTML iconHTML

    OFDM (orthogonal frequency division multiplexing) technique is a promising candidate for the most of current and future modern wireless communication systems. It however suffers from two major drawbacks, namely the high PAPR and ICI. The later is present only in time varying channels. To combat with these problems various researchers of the current era have proposed numerous techniques. However mo... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Development and Analysis of a Data Transmission System for Oil Exploration Sites

    Publication Year: 2006, Page(s):62 - 67
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5170 KB) | HTML iconHTML

    In recent years satellite mobile communications systems and market have entered into the era of maturation. Systems like Iridium and Global Star are technically considered as state of the art. This research paper is the result of a feasibility study of utilizing the low earth orbit, Iridium satellite network for the data transfer. The findings of this research, also demonstrate the performance and... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Signal Modeling Using Transmultiplexer Structures

    Publication Year: 2006, Page(s):68 - 73
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4666 KB) | HTML iconHTML

    This article presents signal modeling techniques by using different transmultiplexer structures. By this methodology any arbitrary signal x(n) isinl2 can be reconstructed as an output of an FIR filter C(z) of an order L. This filter is excited by a signal y(n)= Sigma i=0 M-1 Sigmak=-infin Si(k) fi (n_kM) isinl2, which can be conside... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Criteria for the Detection of Weak Signals through a Nonlinear Bi-stable System

    Publication Year: 2006, Page(s):74 - 78
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4620 KB) | HTML iconHTML

    The dynamics of a nonlinear bistable system are analyzed in the presence of noise for detecting the weak signals. It is shown that suitable selection of such system parameters with optimal noise intensity values increases the spectral amplification of weak input signal. A criteria has been developed for evaluating the system's performance under various input conditions thus providing the system pa... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.