Design of a High Order Diversity Cooperative Transmission Scheme over Rayleigh Fading Channels

H.V. Khuong, H.Y. Kong, Y.K. Hwang, Asaduzzaman, G.S.Kim, and D.K. Choi (Korea)

Keywords

Cooperative Communication, Amplifyandforward, diversity

Abstract

Cooperative transmission is an efficient solution to improve the performance of wireless communications over fading channels without the need for physical co located antenna arrays. In this paper, we propose a novel cooperative transmission scheme with amplify-and forward relay which can obtain the diversity order of 3. Its closed-form bit error rate (BER) expression is also derived and confirmed by Monte-Carlo simulations. A variety of simulated and numerical results show that the proposed scheme saves a significant amount of consumed power compared to direct transmission subject to the same BER performance and bandwidth efficiency.

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