Title :
Design of block-by-block transceivers with successive detection
Author :
Xu, Fang ; Davidson, Timothy N. ; Wong, K.M.
Author_Institution :
Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, Ont., Canada
Abstract :
Block-by-block transceivers are commonly used to simplify the task of transmitting data over dispersive channels. In this paper, we consider the design of the transmitter-receiver pair in a block-by-block system which employs successive detection and interference cancellation at the receiver. (Such receivers are sometimes called block-decision feedback equalizers). We derive lower bounds on the mean-square error (MSE) of the equalizer´s output and the bit-error rate (BER) at moderate-to-high SNR (in the absence of error propagation). These lower bounds guide us towards a closed form expression for a transceiver whose performance is close to these lower bounds. Simulation studies indicate that our transceiver performs significantly better than standard transceivers and retains its performance advantages in the presence of error propagation.
Keywords :
data communication; decision feedback equalisers; dispersive channels; error statistics; interference suppression; mean square error methods; radio receivers; radio transmitters; signal detection; transceivers; BER; MSE; bit-error rate; block-by-block transceivers; block-decision feedback equalizers; closed form expression; data transmission; dispersive channels; error propagation; interference cancellation; lower bounds; mean-square error; moderate-to-high SNR; successive detection; transmitter-receiver pair; Bit error rate; Decision feedback equalizers; Detectors; Dispersion; Matrix converters; Maximum likelihood detection; OFDM modulation; Transceivers; Transmitters; Transversal filters;
Conference_Titel :
Signal Processing Advances in Wireless Communications, 2003. SPAWC 2003. 4th IEEE Workshop on
Print_ISBN :
0-7803-7858-X
DOI :
10.1109/SPAWC.2003.1319011