Performance Of WF Precoding Combined With LDPC Coding
T.R. Rajaonarison, A.A. Randriamitantsoa, P.A. Randriamitantsoa
Keywords - BER, code, LDPC,MIMO, precoder, receiver, WF.
Abstract -The MIMO system (multiple input multiple output)constitutesa solution to increase the capacity and/or to guarantee the quality of a wireless communication. There are many scheme MIMO making it possible to bring diversity of emission with an aim of making the transmissions robust in a difficult environment of propagation. There are two different approaches to bring this diversity: open-loop system and closed-loop system. A WF precoder is a closed-loop system which increases the capacityof the MIMO channel.In addition, the application of the error correcting codes improves the performances of the transmission. We propose in this article to combine the WFprecoder WF with a code LDPC. This new scheme makes it possible to have better a BER/capacity compromise.
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