A method for interference avoidance in channelized wireless systems

Author

Benveniste, Mathilde

Author_Institution

Res., AT&T Labs., Florham Park, NJ, USA

Volume

8

fYear

2001

fDate

2001

Firstpage

2546

Abstract

Power control coupled with user matching can improve the spectrum efficiency in channelized cellular systems. A power control policy must balance the reduction in interference realized with lower transmit-power levels with the reduction in serving signal, which can be done successfully through user matching. When applied indiscriminately, power control can exacerbate the near-far-end problem. We present a power control policy that does not do so, and describe a distributed algorithm for user matching that is easy to implement. The proposed technique can be combined with either fixed or dynamic channel/bandwidth allocation algorithms and applies to both circuit-based and packet-based traffic. Though it can be used with mobile users, it is ideal for fixed and slow-moving terminals

Keywords

bandwidth allocation; cellular radio; channel allocation; circuit switching; cochannel interference; distributed algorithms; interference suppression; packet radio networks; power control; telecommunication channels; telecommunication control; telecommunication traffic; channelized cellular systems; channelized wireless systems; circuit-based traffic; cochannel interference; distributed algorithm; dynamic channel/bandwidth allocation algorithms; fixed channel/bandwidth allocation algorithms; fixed terminals; heuristic algorithm; interference avoidance method; mixed power control with directed assignment; near-far-end problem; neighbor-channel interference; packet-based traffic; power control; serving signal reduction; slow-moving terminals; spectrum efficiency; transmit-power levels; user matching; wireless LAN; Attenuation; Base stations; Circuits; Control systems; Distributed algorithms; Downlink; Frequency; Interference; Power control; Radio transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2001. ICC 2001. IEEE International Conference on

Conference_Location

Helsinki

Print_ISBN

0-7803-7097-1

Type

conf

DOI

10.1109/ICC.2001.936609

Filename

936609