Near-capacity cooperative space-time coding employing irregular design and successive relaying

Kong, Lingkun, Ng, Soon Xin, Maunder, Robert G. and Hanzo, Lajos (2010) Near-capacity cooperative space-time coding employing irregular design and successive relaying. IEEE Transactions on Communications, 58, (8), 2232-2241. (doi:10.1109/TCOMM.2010.08.090646).

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In this paper, we develop a capacity-approaching Cooperative Space-Time Coding CSTC scheme employing irregular design for a twin-relay aided network as an extension of our previous work cast in the context of a half-duplex single-relay-aided network. For the sake of recovering the multiplexing loss imposed by a half-duplex three-terminal network, we employ a successive relaying protocol in this paper, where an additional relay node is activated. Hence, in order to design a near-capacity coding system, first the capacity and the achievable information-rate of a specific space-time coding aided scheme are quantified for the successive relaying aided channel. More specifically, the cooperative space-time codes employed at the source and the relays are jointly designed with the aid of EXtrinsic Information Transfer EXIT charts for the sake of high-integrity operation at Signal-to-Noise Ratios SNRs close to the corresponding successive relaying channel's capacity. Furthermore, unlike in the half-duplex single-relay based system, the destination node performs frame-by-frame Successive Interference Cancellation SIC aided iterative detection, in order to mitigate the efforts of multiple-access interference. Finally, our numerical results demonstrate that our proposed Irregular Cooperative Space-Time Coding Ir-CSTC scheme is capable of near-capacity operation in the successive relaying aided network, which is an explicit benefit of our joint source-and-relay transceiver design

Item Type: Article
ISSNs: 0090-6778 (print)
Divisions: Faculty of Physical Sciences and Engineering > Electronics and Computer Science > Comms, Signal Processing & Control
ePrint ID: 270844
Date Deposited: 16 Apr 2010 14:38
Last Modified: 27 Mar 2014 20:15
Further Information:Google Scholar
ISI Citation Count:10

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