NDLI: Adaptation of terminal to base station assignment to terminal activities and rain event in Broadband Fixed Wireless Access systems

Content Provider	IEEE Xplore Digital Library
Author	Heder, B. Bito, J.
Copyright Year	2009
Description	Author affiliation: Dept. of Broadb. Infocomm. and Electrom. Theory, Budapest Univ. of Techn. and Economics, H-1111, Goldmann Gy. ter 3, Hungary (Heder, B.; Bito, J.)
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, i.e. microwave domain. In this frequency range wave propagation is highly influenced by precipitation, especially rain. Applying site diversity can mitigate rain attenuation effects, when downlink signal level decreases below a threshold, terminal station can be assigned to an other base station, though in point-multipoint systems this base station re-assignment can raise uplink interferences at other terminals. Present contribution provides a special diversity method which adopts genetic algorithm to dynamically optimize TS-BS assignments in BFWA service area from interference point of view. Efficiency of applying various objective functions are compared considering different aspects.
Starting Page	1405
Ending Page	1409
File Size	534960
Page Count	5
File Format	PDF
ISBN	9781424447534
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-03-23
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	VDE
Subject Keyword	Base stations Rain Optimization methods Interference Diversity methods Attenuation Downlink Signal to noise ratio Microwave propagation Genetic algorithms
Content Type	Text
Resource Type	Article

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