Multiple Access Relay Network :: Technology, Network

We consider a ternary access electrical relay interlocking where eachsource transmit channel coded packets, relay decode the transferpacket, generate internet coded parity symbol, and retransmitit. We put one over the relay has multiple antennas, sorelay to destination link is MIMO channel. We consider twoMIMO contagious disease system mode at the relay, spatial multiplexing(SM) and beamforming as transmit diversity (TD), and assumethat the relay use different communicate code scheme dependingon the MIMO transmission mode. In other words, we considera network with terzetto types of linear combination channel steganography at the source, network cryptogram at the relay, and mixingover the air with MIMO channel. The main objective of the newspaper is to propose a transmission mode selection schemeat the relay which optimize these three linear combinationsconcurrently.There are many work that optimize either the networkcoding, MIMO transmission mode, or info rate over mult ipleaccess relay channel. Network coding techniques for singleantenna relay network has been addressed in 1 - 4. Authorsin 1 investigated the cooperative diversity come to offered by thenetwork coding. Authors in 2 proposed a network codingscheme based on low-density parity-check (LDPC) codes thataccounts for the lossy nature of wireless networks and showedthat a significant coding/diversity gain can be achieved. Authorin 3 investigated the tradeoff between dependableness and rateas a function of node density and SNR, and showed howthe elan vital and node density can be traded in achieving a devoted reliability-rate pair in single antenna case. Authors in4 analyzed an network coded cooperation which adaptivelymatch networks-on-graphs to the well-known class of codeson-graphs such as LDPC codes. This approach enables realtime allowance of network codes to variant link states andchanging network topologies. Network coding for multiple antennashave been studied for special network g eometry in 5,6. Authors in 5 proposed a cross-layer design employingmultiple antenna techniques and network coding called MIMO two-party relay for one dimensional mesh network and authorsin 6 investigated the execution of instrument of MIMO network codingin bi-directional relay network. Adaptive relay communications protocol hasbeen proposed for a network with single antenna relays in 7- 9 and for a network with multiple antennas using amplifyand forward protocol in 10, 11. Authors in 11 proposedan adaptive antenna selection scheme at both the relay and thesource for half-duplex MIMO amplify and forward relay protocol.Rate optimization for relay network has been addressedin 12, 13. Authors in 12 proposed throughput optimalcontrol form _or_ system of government for a parallel relay network with decode andforward protocol. Authors in 13 analyzed the performanceof variable-rate two phase collaborative diversity protocols andoptimized the transmission rate based on the node location.