Abstract
A low-complexity iterative receiver structure is proposed for a convolutionally coded system in a severe intersymbol interference environment where diversity reception is available. The receiver performs two successive soft decisions, first from a MMSE filter and then from a channel decoder. At each iteration, extrinsic information is extracted from the detection and decoding stages and is used as a priori information in the next iteration. Simulation results demonstrate that the proposed iterative receiver offers significant performance gain over traditional non-iterative receiver structures. Furthermore, the low complexity of the receiver permits its use in severe multipath channels (10 or more paths).
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