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Communications, IEEE Transactions on

Issue 12 • Date Dec. 2006

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Displaying Results 1 - 22 of 22
  • Table of contents

    Publication Year: 2006 , Page(s): C1 - C4
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  • IEEE Transactions on Communications publication information

    Publication Year: 2006 , Page(s): C2
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  • Does the Performance of LDPC Codes Depend on the Channel?

    Publication Year: 2006 , Page(s): 2129 - 2132
    Cited by:  Papers (27)  |  Patents (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (186 KB) |  | HTML iconHTML  

    In this letter, we discuss the performance of low-density parity-check (LDPC) codes on memoryless channels. Using a recently proposed analysis technique based on extrinsic information transfer (EXIT) charts, we present an interpretation of the known fact that the bit-error rate (BER) performance of an ensemble of LDPC codes shows little dependence on the specific memoryless channel. This result ha... View full abstract»

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  • Efficient Computation of EXIT Functions for Nonbinary Iterative Decoding

    Publication Year: 2006 , Page(s): 2133 - 2136
    Cited by:  Papers (37)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (160 KB) |  | HTML iconHTML  

    The calculation of nonbinary extrinsic information transfer charts for the iterative decoding of concatenated index-based codes is addressed. We show that the extrinsic information at the output of a constituent a posteriori probability decoder can be calculated with very low complexity, where expensive histogram measurements are not required any more. An example for turbo trellis-coded modulation... View full abstract»

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  • Performance Analysis of Generalized Sort, Switch, and Examine Combining

    Publication Year: 2006 , Page(s): 2137 - 2143
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (222 KB) |  | HTML iconHTML  

    Examples of low-complexity diversity combining schemes are, among others, the generalized selection combining (GSC) scheme and the generalized switch-and-examine combining (GSEC). In this paper, we propose a new low-complexity combining scheme, termed generalized sort-switch-and-examine combining (GSSEC), that, in a sense, can be considered as a hybrid GSC/GSEC scheme. A generic expression for the... View full abstract»

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  • Frequency-Domain Block Turbo-Equalization for Single-Carrier Transmission Over MIMO Broadband Wireless Channel

    Publication Year: 2006 , Page(s): 2144 - 2149
    Cited by:  Papers (19)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (232 KB) |  | HTML iconHTML  

    This paper presents a new class of block turbo-equalizers for single-carrier transmission over multiple-input multiple-output (MIMO) broadband wireless channels. The key underlying idea consists in equalizing (nonoverlapping) groups of symbols and detecting their individual space-time components in a disjoint and iterative fashion. This functional split naturally induces new design options that ha... View full abstract»

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  • Parallel Detection of Groupwise Space–Time Codes by Predictive Soft Interference Cancellation

    Publication Year: 2006 , Page(s): 2150 - 2154
    Cited by:  Papers (21)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (170 KB) |  | HTML iconHTML  

    Multiple-input multiple-output (MIMO) techniques promise huge capacity increase in fading channels. Groupwise space-time coding is a tradeoff between complexity and performance. In this letter, the structure of particular component space-time code trellises is exploited, using partial information from a Viterbi decoder of the simultaneously decoded interfering component codes. We have shown that b... View full abstract»

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  • Frequency-Domain Channel Estimation for SC-FDE in UWB Communications

    Publication Year: 2006 , Page(s): 2155 - 2163
    Cited by:  Papers (28)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (965 KB) |  | HTML iconHTML  

    Recently, single-carrier block transmission with frequency-domain equalization (SC-FDE) has been shown to be a promising candidate for ultra-wideband (UWB) communications. In this paper, we address the channel estimation problem for SC-FDE transmission over UWB channels. A mean-square error (MSE) lower bound for the frequency-domain linear minimum mean-squared error (LMMSE) channel estimator is de... View full abstract»

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  • Achieving Full Frequency and Space Diversity in Wireless Systems via BICM, OFDM, STBC, and Viterbi Decoding

    Publication Year: 2006 , Page(s): 2164 - 2172
    Cited by:  Papers (53)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (549 KB) |  | HTML iconHTML  

    Orthogonal frequency-division multiplexing (OFDM) is known as an efficient technique to combat frequency-selective channels. In this paper, we show that the combination of bit-interleaved coded modulation (BICM) and OFDM achieves the full frequency diversity offered by a frequency-selective channel with any kind of power delay profile (PDP), conditioned on the minimum Hamming distance dfree of the... View full abstract»

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  • Spectrally Precoded OFDM

    Publication Year: 2006 , Page(s): 2173 - 2185
    Cited by:  Papers (21)  |  Patents (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (572 KB) |  | HTML iconHTML  

    By bilinearly transforming the rectangularly pulsed multicarrier basis signals, new basis sets containing full-response continuous basis signals are developed for constructing spectrally efficient orthogonal frequency-division multiplexing (OFDM) signals with or without cyclic prefix (CP) or zero padding (ZP). Both multiple-product and linear-combination formats are presented for these basis sets.... View full abstract»

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  • Space–Time Trellis Codes Based on Channel-Phase Feedback

    Publication Year: 2006 , Page(s): 2186 - 2198
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (691 KB) |  | HTML iconHTML  

    Space-time coding (STC) has been proposed recently for multiple-antenna wireless communication systems. Most of the proposed STC schemes use the assumption that either no channel-state information, or the channel mean/covariance information, is available at the transmitter. In this paper, we propose a new STC scheme for a closed-loop transmission system, where quantized channel-phase information i... View full abstract»

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  • Improved Opportunistic Beamforming in Ricean Channels

    Publication Year: 2006 , Page(s): 2199 - 2211
    Cited by:  Papers (11)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (990 KB) |  | HTML iconHTML  

    In order to improve the performance of opportunistic beamforming in Ricean channels, we propose an improved opportunistic beamforming scheme which forms beams intelligently to the users. First, a new concept of the generalized Ricean distribution is introduced. On the basis of this theory, we propose a maximum-likelihood (ML) estimator of the directions of arrival of the users, and we derive the C... View full abstract»

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  • A Necessary Condition on the Location of Pilot Tones for Maximizing the Correction Capacity in OFDM Systems

    Publication Year: 2006 , Page(s): 2212
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  • On Achievable Rates Over Time-Varying Rayleigh Fading Channels

    Publication Year: 2006 , Page(s): 2212
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  • Entropy Coding With Variable-Length Rewriting Systems

    Publication Year: 2006 , Page(s): 2212
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  • New Approach for Error Compensation in Coded V-BLAST OFDM Systems

    Publication Year: 2006 , Page(s): 2212
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  • Approximate Minimum BER Power Allocation for MIMO Spatial Multiplexing Systems

    Publication Year: 2006 , Page(s): 2212
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  • Reviewers List 2006 IEEE Communications Society IEEE Transactions on Communications Editorial Staff 2006

    Publication Year: 2006 , Page(s): 2213 - 2218
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  • IEEE Transactions on Communications Information for authors

    Publication Year: 2006 , Page(s): 2219
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  • 2006 Index

    Publication Year: 2006 , Page(s): 2220 - 2247
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  • Leading the field since 1884 [advertisement]

    Publication Year: 2006 , Page(s): 2248
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  • IEEE Communications Society Information

    Publication Year: 2006 , Page(s): C3
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Aims & Scope

IEEE Transactions on Communications focuses on all telecommunications including telephone, telegraphy, facsimile, and point-to-point television by electromagnetic propagation.

 

 

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Robert Schober
University of British Columbia