TCOM
2010
13 years 6 months ago
2010
Space-time block codes with orthogonal structures typically provide full-diversity reception and simple receiver processing. However, rate-1 orthogonal codes for complex constellat...
TCOM
2010
13 years 6 months ago
2010
The class of variable-length finite-state joint source-channel codes is defined and a polynomial complexity algorithm for the evaluation of their distance spectrum presented. Issu...
TCOM
2010
13 years 6 months ago
2010
It is shown that binary low-density generator matrix codes can achieve the rate-distortion bound of discrete memoryless sources with general distortion measure via multilevel quant...
TCOM
2010
13 years 9 months ago
2010
—In this letter, we address two questions concerning the application of multipulse pulse-position modulation (MPPM) for free-space optical (FSO) communications: (1) under what co...
TCOM
2010
13 years 9 months ago
2010
—This paper is concerned with a simple binary erasure-recovery coding scheme that falls into the family of socalled semi-random low-density-parity-check (SR-LDPC) codes. Based on...
TCOM
2010
13 years 9 months ago
2010
Abstract— Today, due to the vast amount of literature on largescale wireless networks, we have a fair understanding of the asymptotic behavior of such networks. However, in real ...
TCOM
2010
13 years 9 months ago
2010
—A multisymbol noncoherent receiver suitable for coded continuous-phase frequency-shift keying is developed and analyzed. Unlike coherently detected signals, the modulation index...
TCOM
2010
13 years 9 months ago
2010
—Training sequences for data-aided timing estimation in multi-input multi-output systems are designed. It is observed that for low complexity implementation, the sequences must n...
TCOM
2010
13 years 9 months ago
2010
—We propose weakly-constrained stream and block codes with tunable pattern-dependent statistics and demonstrate that the block code capacity at large block sizes is close to the ...
TCOM
2010
13 years 9 months ago
2010
—Cooperative spectrum sensing has been shown to be able to greatly improve the sensing performance in cognitive radio networks. However, if cognitive users belong to different se...