Dynamic channel allocation techniques using adaptive modulation and adaptive antennas

Author

Blogh, Jonathan S. ; Cherriman, Peter J. ; Hanzo, Lajos

Author_Institution

Dept. of Electron. & Comput. Sci., Southampton Univ., UK

Volume

19

Issue

2

fYear

2001

fDate

2/1/2001 12:00:00 AM

Firstpage

312

Lastpage

321

Abstract

This article studies the impact of adaptive quadrature amplitude modulation (AQAM) on network performance when applied to a cellular network, using adaptive antennas in conjunction with both fixed channel allocation (FCA) and locally distributed dynamic channel allocation (DCA) schemes. The performance advantages of using adaptive modulation are investigated in terms of the overall network performance, mean transmitted power, and the average network throughput. Adaptive modulation allowed an extra 51% of users to be supported by an FCA 4-QAM network, while in conjunction with DCA, an additional 54% user capacity was attained

Keywords

adaptive antenna arrays; adaptive modulation; cellular radio; channel allocation; channel capacity; quadrature amplitude modulation; radio networks; AQAM; DCA; FCA 4-QAM network; adaptive antennas; adaptive quadrature amplitude modulation; average network throughput; cellular network; fixed channel allocation; locally distributed dynamic channel allocation; mean transmitted power; network performance; user capacity; Adaptive arrays; Adaptive control; Antenna arrays; Base stations; Channel allocation; Directive antennas; Interference; Land mobile radio cellular systems; Programmable control; Quadrature amplitude modulation;

fLanguage

English

Journal_Title

Selected Areas in Communications, IEEE Journal on

Publisher

ieee

ISSN

0733-8716

Type

jour

DOI

10.1109/49.914509

Filename

914509