Abstract
This paper has proposed an adaptive antenna selection technique in multiple input multiple output (MIMO) system that optimizes the system energy efficiency to achieve maximum throughput. Though throughput increases with the dimension of MIMO system, the energy consumed per RF module is a major concern. The antenna selection technique exploits the channel state information (CSI) at transmitting end to reduce the number of RF module to achieve maximum benefit out of MIMO system. However, simultaneously achievement of best throughput and energy efficiency, with fixed number of transmitted antennas, is not possible. In this paper, the number of transmitting antenna to be selected is varied as per channel condition. The proposed technique aims to maximize the instantaneous throughput with optimum energy efficiency.
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