Multi-User Relaying of High-Rate Space---Time Code in Cooperative Networks

Authors:
Manav R. Bhatnagar;M. K. Arti;Are Hjørungnes;Ranjan Bose;Lingyang Song
Affiliations:
UNIK--University Graduate Center, University of Oslo, Kjeller, Norway 2027;Department of Electrical Engineering, Indian Institute of Technology Delhi, New Delhi, India 110016;UNIK--University Graduate Center, University of Oslo, Kjeller, Norway 2027;Department of Electrical Engineering, Indian Institute of Technology Delhi, New Delhi, India 110016;UNIK--University Graduate Center, University of Oslo, Kjeller, Norway 2027
Venue:
Wireless Personal Communications: An International Journal
Year:
2010

Citing 6
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Abstract

In this paper, we propose high-rate space---time coding for cooperative wireless networks to reduce the overall delay incurred in relaying signals to multiple receivers. The relay structure is optimized in order to achieve maximum SNR at the receiver nodes. The proposed scheme provides a significant reduction in the delay required for the relaying and transmission of the signals to the multiple receivers with a minute loss in performance. We have also shown by simulation that this loss in the performance could be recovered by selecting more number of relays. We propose two relaying strategies for high-rate space---time codes, which are very useful in providing high data-rate in wireless cooperative networks.