Summary
International Symposium on Antennas and Propagation
2005
Session Number:1D3
Session:
Number:1D3-2
Novel Configuration for Indoor Wireless LAN Base Station Applied to SDMA System
Sokthai Chan, Mitoshi Fujimoto, Toshikazu Hori,
pp.-
Publication Date:2005/11/3
Online ISSN:2188-5079
Summary:
The application of indoor wireless LANs to the Space Division Multiple Access (SDMA) system was proposed; however, in this proposed scheme it is difficult to separate signals from individual mobile terminals using the directional beam of a base station (BS) when the mobile terminals approach each other. In order to address this problem, a novel configuration for a BS in the SDMA system is proposed in this paper. The optimal arrangement of array antennas in the BS is considered. The configuration establishes orthogonal channels between mobile terminals and the BS enabling the signals from the mobile terminals to be separated. The simulation results show that the optimal BS configuration depends on the wall materials that comprise the room. Moreover, the results show that the optimal element spacing is slightly narrower than half the size of the room for both concrete and metallic walls.