PARTIAL ITERATIVE DETECTION AND DECODING RECEIVER AND METHOD IN MULTIPLE ANTENNA SYSTEM

摘要

A partial iterative detection and decoding receiver and a method in a Multi- Input Multi-Output are provided to enhance performance of the receiver by increasing iterative times limited by complexity. A partial iterative detection and decoding receiver in a Multi-Input Multi-Output includes a MIMO(Multi-Input Multi-Output) producer(301), a de- interleaver(303), a channel decoder(305), a interleaver(307), a hard decision value producer(309), a reliability determiner(311), and first and second multipliers(313,315). The MIMO detector(301) produces first posteriori information(LD1) for each byte by using a received signal and first priori information. The first multiplier(313) produces first external information by using a difference of the posteriori information(LD1) and the first priori information. The de-interleaver(303) generates and outputs second priori information by performing de-interleaving of the first external information provided by the first multiplier. The channel decoder(305) produces by using the second priori information provided by the de-interleaver(303). The reliability determiner(311) feedbacks a MIMO symbols including bit which generates reversion of an LLR(Log Likelihood Ratio) code. The second multiplier(315) produces the second external information. The interleaver(307) generates and outputs the first priori information. The hard decision value producer(309) decides and outputs a hard decision value of bit not to perform an information exchange or an LLR re- calculation.