Title :
A forward backward approach to adaptive space-time identification and equalization of time-varying channels
Author :
See, Chong-Meng Samson ; Cowan, Colin F N
Author_Institution :
DSO Nat. Labs., Singapore
Abstract :
We present an adaptive algorithm for space-time channel identification and equalization. The proposed algorithm performs joint channel estimation and sequence detection by optimizing a least squares cost function iteratively in a forward and backward manner. Simulation results demonstrate the proposed algorithm to be data efficient and fast converging. In addition, a good BER performance is achieved in time-varying channels at relatively low SNR and with an extremely short start-up sequence. These attributes render it suitable for wireless mobile communications using short burst data format
Keywords :
adaptive equalisers; adaptive signal detection; convergence of numerical methods; error statistics; identification; land mobile radio; least squares approximations; sequences; time-varying channels; BER performance; adaptive algorithm; adaptive equalization; adaptive space-time identification; channel estimation; channel identification; computational complexity; forward backward approach; least squares cost function; low SNR; sequence detection; short burst data format; short start-up sequence; simulation results; time-varying channels; wireless mobile communications; Adaptive algorithm; Adaptive equalizers; Bit error rate; Channel estimation; Cost function; Iterative algorithms; Least squares approximation; Mobile communication; Time-varying channels; Wireless communication;
Conference_Titel :
Acoustics, Speech and Signal Processing, 1998. Proceedings of the 1998 IEEE International Conference on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-4428-6
DOI :
10.1109/ICASSP.1998.679587
