Fuzzy weight controller based cell-site diversity for rain fading mitigation in LMDS networks in the tropics

Sabapathy, T. and Chuah, T. C. and Tan, S. W. (2011) Fuzzy weight controller based cell-site diversity for rain fading mitigation in LMDS networks in the tropics. Progress In Electromagnetics Research B, 28. pp. 235-251. ISSN 1937-6472

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Abstract

Local multipoint distribution service (LMDS) is a broadband wireless access technology that operates at microwave frequencies above 25 GHz. However, severe attenuation due to excessive rain in tropical regions presents a major challenge for achieving reliable communication over such frequencies. To overcome this problem, cell-site diversity (CSD) can be deployed in cellular-type LMDS networks. In this paper, we address the problem of reliable communication for LMDS networks in heavy rain regions by proposing a fuzzy weight controller based cell-site diversity (FWC-CSD) scheme. Rain cells are randomly simulated in an LMDS network to analyze the system performance using the proposed FWC-CSD scheme. Simulation results show that the proposed scheme yields improved performance in terms of average outage probability and throughput while maintaining the overall quality of service.

Item Type: Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering (FOE)
Depositing User: Ms Suzilawati Abu Samah
Date Deposited: 22 Jan 2014 04:29
Last Modified: 17 Feb 2014 02:50
URI: http://shdl.mmu.edu.my/id/eprint/4932

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