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Performance of Multi-User MIMO/OFDM System using Cyclic Delay Diversity for Fading Channels  

Park, In-Hwan (광운대학교 전파공학과)
Kim, Yoon-Hyun (광운대학교 전파공학과)
Kim, Jin-Young (광운대학교 전파공학과)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.10, no.6, 2010 , pp. 263-268 More about this Journal
Abstract
As the demand of high quality service in next generation wireless communication systems, a high performance of data transmission requires an increase of spectrum efficiency and an improvement of error performance in wireless communication systems. In this paper, we propose a multi-user multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) system with cyclic delay diversity and block diagonalization procoding method to improve bit error rate (BER) performance with wireless local area network (WLAN) channel model C and D for 802.11n WLAN system. The results of mathlab simulation show the improvement of BER performance in 802.11n wireless indoor channel environment.
Keywords
CDD(cyclic delay diversity); Block diagonalization; Multi-user MIMO;
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