Space frequency codes based amplify-and-forward cooperative system

Authors:
Rongkai Li;Zhiquan Bai;Kyungsup Kwak
Affiliations:
School of Information Science and Engineering, Shandong University, Jinan, China and National Key Lab. of ISN, Xidian University, Xi'an, China;School of Information Science and Engineering, Shandong University, Jinan, China and National Key Lab. of ISN, Xidian University, Xi'an, China;UWB Wireless Communications Research Center, Inha University, Korea
Venue:
ISCIT'09 Proceedings of the 9th international conference on Communications and information technologies
Year:
2009

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Abstract

In this paper, with the purpose to exploit the space and the frequency diversity, we propose an amplify-and-forward (AAF) cooperative system using orthogonal frequency division multiplexing (OFDM) with space-frequency codes (SFC). The signal processing algorithm of this presented system is introduced in detail and we also provide the system optimal power allocation strategy. Simulation results prove that SFC based AAF cooperative system can have better performance compares with SFC based DAF system and the optimal power allocation is efficient in both SFC based AAF and DAF cooperative systems.