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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/100538


    Title: Comparison of GA and DDE for optimizing coverage in indoor environment
    Authors: Shu-Han Liao, Chien-Ching Chiu* andMin-Hui Ho
    Contributors: 電機工程學系暨研究所
    Keywords: UWB
    genetic algorithm
    dynamic differential evolution
    power
    ray-tracing
    Date: 2014-11
    Issue Date: 2015-03-04 00:09:43 (UTC+8)
    Publisher: John Wiley & Sons, Ltd
    Abstract: This paper presents a method for determining the required number and locations of transmitting antennas to optimize wireless propagation coverage in indoor ultra-wideband communication system. In the coverage prediction model, we use the three-dimensional ray-tracing technique associated to a genetic algorithm and a dynamic differential evolution for optimizing the transmitting antennas location in an indoor environment. The ray-tracing method is employed to calculate the field strength from one or more transmitting antennas, and the optimization algorithm is used to determine the required number and locations of these antennas to achieve optimized wireless coverage in the indoor environment. The combined three-dimensional ray-tracing and optimization algorithm was applied in the indoor environment to find the best location of the transmitting antennas by maximizing the power in the coverage area. The use of deployments to minimize the transmitting antennas and maximize the power in the coverage area was proposed. Obtained simulation results illustrate the feasibility of using the integrated ray-tracing and optimization method to find the optimal transmitter locations in determining the optimized coverage of a wireless network. The dynamic differential evolution has better optimization results compared with the genetic algorithm. The investigated results can help communication engineers improve their planning and design of indoor wireless communication.
    Relation: International Journal of Communication Systems, Vol. 27, no. 11, pp. 3232-3243
    DOI: 10.1002/dac.2537
    Appears in Collections:[電機工程學系暨研究所] 期刊論文

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