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Asymptotic Minimum Coverage Using Macroscopic Diversity
Aug. 2013 (vol. 12 no. 8)
pp. 1518-1531
Hiroshi Saito, NTT Service Integration Laboratories, Musashino-Shi
Daisei Uchida, NTT Access System Laboratories, Yokosuka
The optimal geometric configuration of the cells of a wireless network using multiple antennas for each base station and a macrodiversity technique is investigated. The simplest model of a cell of an existing wireless network is disk shaped, and the cell deployment is arranged in a honeycomb tiling pattern. This model has been used as the first-order approximation for designing and evaluating wireless networks. However, the cells of a network using multiple antennas and macrodiversity are no longer disk shaped. This study investigated a network with a cell-and-antenna deployment pattern that covers a given service area using the minimum number of cells. The objective of this paper is to offer a first-order approximation model for a cell-and-antenna deployment pattern of such a network. For this objective, first, by imposing practical conditions, cell-and-antenna deployment patterns are classified. Then, the asymptotic minimum coverage problem is formulated as an optimization problem with a constraint for a set of deployment patterns. To easily obtain the first-order approximation model, a simplified formulation and model are proposed. Numerical examples show that the proposed deployment pattern covers the service area with nearly half the cells required by the existing heuristic pattern.
Index Terms:
Diversity reception,Base stations,Wireless communication,Approximation methods,Transmitting antennas,tiling,Cell,diversity,wireless network,cellular network,minimum coverage
Citation:
Hiroshi Saito, Daisei Uchida, "Asymptotic Minimum Coverage Using Macroscopic Diversity," IEEE Transactions on Mobile Computing, vol. 12, no. 8, pp. 1518-1531, Aug. 2013, doi:10.1109/TMC.2012.111
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