Adaptive terminal to base station assignment in BFWA systems

Author

Héder, Balázs ; Csurgai-Horváth, László ; Bitó, János

Author_Institution

Dept. of Broadband Infocomm. & Electrom. Theor., Budapest Univ. of Technol. & Econ., Budapest, Hungary

Volume

13

Issue

8

fYear

2009

fDate

8/1/2009 12:00:00 AM

Firstpage

588

Lastpage

590

Abstract

In point-multipoint systems the signal to interference plus noise ratio highly depends on the assignment of terminal stations (TS) to base stations (BS). The Broadband Fixed Wireless Access (BFWA) systems operate at high carrier frequencies. In this frequency range wave propagation is highly influenced by precipitation. Applying site diversity can mitigate rain attenuation effects. Present contribution provides a special site diversity method adopting genetic algorithm to adaptively optimize TS-BS assignments from point of view of the interference in BFWA service area. Rain events are generated with a Markov modeled simulation of the rain cell translations.

Keywords

broadband networks; genetic algorithms; rain; wave propagation; BFWA systems; adaptive terminal to base station assignment; broadband fixed wireless access; frequency range wave propagation; genetic algorithm; rain attenuation; site diversity; Attenuation; Base stations; Discrete event simulation; Diversity methods; Frequency; Genetic algorithms; Interference; Optimization methods; Rain; Signal to noise ratio; BFWA, rain attenuation, site diversity, dynamic optimization, genetic algorithm.;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2009.090356

Filename

5200894