Relay-assisted distributed hybrid MIMO transceiver with information exchange errors for cooperative networks

For non-relaying cooperative networks, the previous work proposed a distributed space-time block code (STBC) scheme considering information exchange errors in two-user cooperative networks. We propose a distributed Hybrid multiple-input multiple-output (MIMO) Transceiver scheme (HMT) considering information exchange errors in three-user cooperative networks. For relaying cooperative networks, the previous work also proposed an un-coded demodulation and forward relay and considering demodulation errors in the relay in two-user cooperative networks. We propose the relay-assisted distributed HMT scheme considering information exchange errors in 3-user cooperative networks, the differences are that our scheme has 3×2 HMT with transmit antenna selection in source-to-relay, source-to-destination, and relay-to-destination links, but the previous scheme has the 2×2 un-coded schemes in these three links. For both non-relaying and relaying scenarios, the simulation results show the proposed schemes have lower bit error rate (BER) than the previous schemes at the same 4 bits/sec/Hz transmission rate.