Title :
A Bandwidth-Efficient Coded Cooperative Communications System
Author :
Nguyen, Hieu T. ; Nguyen, Ha H. ; Le-Ngoc, Tho
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Saskatchewan, Saskatoon, SK
Abstract :
A cooperative coding scheme using M-ary modulation for high spectral efficiency and repetitive information transmission for diversity improvement is proposed. The encoder is a parallel concatenation of two bit-interleaved coded M-ary modulators (BICM) with scalable repetition of information symbols. As a result, the fraction of repeated information and the spectral efficiency of M-ary modulation can be used for bandwidth-performance tradeoff. Simulation results for different M-PSK and M-QAM systems in various block fading scenarios show that for a given bandwidth efficiency, a proper selection of the fraction of repeated information and the spectral efficiency of M-ary modulation can provide a large performance improvement.
Keywords :
block codes; channel coding; concatenated codes; fading channels; phase shift keying; quadrature amplitude modulation; M-PSK; M-QAM systems; M-ary modulation; bandwidth efficiency; bandwidth-efficient coded system; bandwidth-performance tradeoff; bit-interleaved coded; block fading scenarios; cooperative communications system; diversity improvement; high spectral efficiency; information symbols; parallel concatenation; repetitive information transmission; Bandwidth; Cyclic redundancy check; Fading; Interleaved codes; Iterative decoding; Mobile antennas; Mobile communication; Modulation coding; Protocols; Turbo codes;
Conference_Titel :
Vehicular Technology Conference, 2006. VTC-2006 Fall. 2006 IEEE 64th
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0062-7
Electronic_ISBN :
1-4244-0063-5
DOI :
10.1109/VTCF.2006.163
