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Capacity Performance of Adaptive Receive Antenna Subarray Formation for MIMO Systems

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Abstract

Antenna subarray formation is a novel RF preprocessing technique that reduces the hardware complexity of MIMO systems while alleviating the performance degradations of conventional antenna selection schemes. With this method, each RF chain is not allocated to a single antenna element, but instead to the complex-weighted and combined response of a subarray of elements. In this paper, we derive tight upper bounds on the ergodic capacity of the proposed technique for Rayleigh i.i.d. channels. Furthermore, we study the capacity performance of an analytical algorithm based on a Frobenius norm criterion when applied to both Rayleigh i.i.d. and measured MIMO channels.

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Correspondence to Panagiotis Theofilakos.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Theofilakos, P., Kanatas, A.G. Capacity Performance of Adaptive Receive Antenna Subarray Formation for MIMO Systems. J Wireless Com Network 2007, 056471 (2007) doi:10.1155/2007/56471

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Keywords

  • Performance Degradation
  • MIMO System
  • Frobenius Norm
  • Antenna Element
  • Capacity Performance