Network coded multi-source cooperative communication in BICM-OFDM networks

Islam T, Nasri A, Schober R, Mallik RK, Bhargava VK (2012)

Publication Type: Journal article

Publication year: 2012

Journal

IEEE Transactions on Wireless Communications Institute of Electrical and Electronics Engineers (IEEE)

Book Volume: 11

Pages Range: 3180-3193

Article Number: 6241388

Journal Issue: 9

DOI: 10.1109/TWC.2012.070912.111308

Abstract

In this paper, we study a cooperative diversity scheme for wireless systems employing network coding and the combination of bit-interleaved coded modulation (BICM) and orthogonal frequency division multiplexing (OFDM). The considered system comprises multiple sources, one relay, and one destination. The relay decodes the signal received from all sources and performs network coding before forwarding the signal to the destination. We propose a simple cooperative maximum-ratio combining scheme for the destination which can successfully exploit the full spatial and frequency diversity offered by the channel for arbitrary numbers of sources and arbitrary linear modulation schemes. Furthermore, we propose techniques to reduce the signaling overhead and the decoding complexity at the destination. To gain insight for system design, we derive a closed-form upper bound for the asymptotic worst-case pairwise error probability and the diversity gain of the considered network coded cooperative BICM-OFDM system. These analytical results reveal the influence of various system parameters, including the number of sources, the free distance of the code, and the frequency diversity of the involved links, on performance. Based on the derived analytical results, we develop schemes for optimal relay placement and power allocation. Simulation results corroborate the derived analytical results and confirm the effectiveness of the developed optimization framework. © 2002-2012 IEEE.

Authors with CRIS profile

Robert Schober

Involved external institutions

University of British Columbia CA Canada (CA) Indian Institute of Technology (IIT), Delhi IN India (IN)

How to cite

APA:

Islam, T., Nasri, A., Schober, R., Mallik, R.K., & Bhargava, V.K. (2012). Network coded multi-source cooperative communication in BICM-OFDM networks. IEEE Transactions on Wireless Communications, 11(9), 3180-3193. https://dx.doi.org/10.1109/TWC.2012.070912.111308

MLA:

Islam, Toufiqul, et al. "Network coded multi-source cooperative communication in BICM-OFDM networks." IEEE Transactions on Wireless Communications 11.9 (2012): 3180-3193.

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