Maximising capacity of MIMO systems with receive antenna subarray formation |
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Authors: | Theofilakos P. Kanatas A.G. |
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Affiliation: | Wireless Communications Laboratory, Department of Digital Systems, University of Piraeus, 80 Karaoli & Dimitriou Street, Piraeus, Attiki GR-185 34, Greece; |
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Abstract: | Antenna subarray formation is a novel RF pre-processing technique that reduces hardware complexity of multiple-input multiple-output systems while alleviating the performance degradation of conventional antenna selection techniques. With this method, each RF chain is allocated to a linear combination of the responses of a subset of the available antenna elements, which is performed in the radio frequency domain. A novel, analytical, suboptimal algorithm is introduced for receive antenna subarray formation based on instantaneous channel information that maximises the effective channel capacity. |
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