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ICC
2007
IEEE
14 years 3 months ago
Accurate Approximations for the Capacity Distribution of OFDM-Based Spatial Multiplexing
Abstract— We derive new analytic approximations to the capacity distribution of frequency-selective Rayleigh fading MIMO channels. The results apply specifically to OFDM-based s...
Matthew R. McKay, Peter J. Smith, Himal A. Surawee...
ICASSP
2009
IEEE
14 years 1 months ago
Blind noise variance estimation for OFDMA signals
In this paper, we present two new noise variance estimation methods of OFDMA signals transmitted through an unknown multipath fading channel. We focus on blind estimation as it do...
François-Xavier Socheleau, Dominique Pastor...
GLOBECOM
2009
IEEE
14 years 13 days ago
Near-Shannon-Limit Linear-Time-Encodable Nonbinary Irregular LDPC Codes
—In this paper, we present a novel method to construct nonbinary irregular LDPC codes whose parity check matrix has only column weights of 2 and t, where t ≥ 3. The constructed...
Jie Huang, Shengli Zhou, Peter Willett
CORR
2007
Springer
87views Education» more  CORR 2007»
13 years 9 months ago
Symbol Error Rates of Maximum-Likelihood Detector: Convex/Concave Behavior and Applications
— Convexity/concavity properties of symbol error rates (SER) of the maximum likelihood detector operating in the AWGN channel (non-fading and fading) are studied. Generic conditi...
Sergey Loyka, Victoria Kostina, François Ga...
TIT
2008
61views more  TIT 2008»
13 years 9 months ago
Performance of Space-Time Codes: Gallager Bounds and Weight Enumeration
Since the standard union bound for space-time codes may diverge in quasi-static fading channels, the limit-before-average technique has been exploited to derive tight performance b...
Cong Ling, Kwok H. Li, Alex ChiChung Kot