Explicit MMSE MIMO transceiver solution for analog joint source channel coding

摘要: The joint design of optimal linear Minimum MSE (MMSE) filters at the transmitter and receiver a Multiple-Input Multiple-Output (MIMO) system arises as natural problem when transmitting discrete-time continuous-amplitude sources using analog Joint Source Channel Coding (JSCC). In this work, we derive an explicit closed form solution for MMSE precoder equalizer MIMO under transmit power constraint. Such is specially suitable JSCC because it preserves low complexity negligible delay distinctive type systems. We also show that obtained resembles waterfilling algorithm provides distribution among different data streams. performance transceiver evaluated in context transmissions MIMO-OFDM channels results closely approaches theoretical limits outperforms zero forcing (ZF) precoding. Finally, some interesting properties systems with equalizer, quantify their superior respect to those use ZF precoding and/or equalization.