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Capacity Enhancement Using MIMO Antenna Arrays in Realistic Macro-Cellular Urban Environment

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Abstract

In MIMO systems the antenna array configuration in the BS and MS has a large influence on the available channel capacity. In this paper, we first introduce a new Frequency Selective (FS) MIMO framework for macro-cells in a realistic urban environment. The MIMO channel is built over a previously developed directional channel model, which considers the terrain and clutter information in the cluster, line-of-sight and link loss calculations. Next, MIMO configuration characteristics are investigated in order to maximize capacity, mainly the number of antennas, inter-antenna spacing and SNR impact. Channel and capacity simulation results are presented for the city of Lisbon, Portugal, using different antenna configurations. Two power allocations schemes are considered, uniform distribution and FS spatial water-filling. The results suggest optimized MIMO configurations, considering the antenna array size limitations, specially at the MS side.

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Authors and Affiliations

  1. Department of Electrical Engineering, Lisbon Polytechnic Institute (ISEL), R. Conselheiro Emídio Navarro, 1, 1959-007, Lisbon, Portugal

    Pedro Vieira

  2. Instituto de Telecomunicações (IT)/IST, Technical University of Lisbon, Lisbon, Portugal

    Pedro Vieira, Paula Queluz & António Rodrigues

Authors
  1. Pedro Vieira
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  2. Paula Queluz
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  3. António Rodrigues
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Correspondence to Pedro Vieira.

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Vieira, P., Queluz, P. & Rodrigues, A. Capacity Enhancement Using MIMO Antenna Arrays in Realistic Macro-Cellular Urban Environment. Wireless Pers Commun 55, 201–224 (2010). https://doi.org/10.1007/s11277-009-9795-z

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  • DOI: https://doi.org/10.1007/s11277-009-9795-z

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