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Performance evaluation of Adaptive MIMO Switching in Long Term Evolution

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3 Author(s)
Sheikh, M.U. ; Dept. of Commun. Eng., Tampere Univ. of Technol., Tampere, Finland ; Jagusz, R. ; Lempiäinen, J.

In a race towards 4G technologies, future cellular network like Long Term Evolution (LTE) is competing with high data rates and improved spectrum efficiency. The target of this paper is to evaluate performance of Adaptive MIMO Switching (AMS) in LTE in terms of cell throughput and throughput gain with respect to other antenna configuration. The impact of different intersite distance on the performance of AMS was also investigated in this paper. The assessment was based on simulations using analytical channel model. Kronecker channel model without any Channel State Information (CSI) at transmitter was used for the simulation purposes. Adaptive MIMO switching works on the principle of switching among transmit diversity, receive diversity, and spatial multiplexing in accordance to SINR level. Simulation results reveal that significant improvement in cell throughput can be achieved by applying AMS technique. However, utilization of standard MIMO transmission techniques also improves channel capacity.

Published in:

Wireless Communications and Mobile Computing Conference (IWCMC), 2011 7th International

Date of Conference:

4-8 July 2011