Title :
Redundancy in block coded modulations for channel equalization based on spatial and temporal diversity
Author :
Vázquez, Gregori ; Rey, Francesc ; Lamarca, Meritxell
Author_Institution :
Dept. of Signal Theor. & Commun., Polytech. Univ. of Catalonia, Barcelona, Spain
Abstract :
Linear block codes in the complex field can be applied in spatial and/or temporal diversity receivers in order to develop high performance schemes for (almost-) blind equalization in mobile communications. The proposed technique uses the structure of the encoded transmitted information (with redundancy) to achieve equalization schemes based on a deterministic criterion. Simulations show that the proposed technique is more efficient than other schemes that follow similar equalizer structures. The result is an algorithm that provides the design of channel equalizers in low EbNo scenarios
Keywords :
OFDM modulation; blind equalisers; block codes; diversity reception; fading channels; land mobile radio; linear codes; modulation coding; multiuser channels; radio receivers; spread spectrum communication; time division multiple access; DS-CDMA systems; OFDM; TDMA structures; algorithm; almost-blind equalization; block coded modulation; channel equalization; deterministic criterion; encoded transmitted information; frequency flat fading channels; frequency selective mobile channels; high performance schemes; linear block codes; low EbNo; mobile communications; redundancy; simulations; spatial diversity receiver; temporal diversity receiver; Blind equalizers; Block codes; Decoding; Equations; Mobile communication; Modulation coding; Redundancy; Robust stability; Statistics; Time division multiple access;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1999. Proceedings., 1999 IEEE International Conference on
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-5041-3
DOI :
10.1109/ICASSP.1999.761304