An efficient power allocation scheme in HDR systems

Author

Chekal, Hyun ; Han, Youngnam

Author_Institution

Sch. of Commun. Eng., Inf. & Commun. Univ., Taejon, South Korea

Volume

4

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

2197

Abstract

An efficient base station (BS) power allocation scheme for the forward link is proposed to to improve the overall throughput in a multicell high data rate (HDR) system, which is designed to support a high data rate. In HDR, if a cell is properly designed, users located close to a BS acquire an excessive signal to interference power ratio (SIR) for a maximum achievable data rate. This excessive power results in lower SIR for users at cell boundary. By allocating lower power for users near a BS than the maximum power, other-cell interference can be alleviated to users near the cell boundary. Even though HDR adopts time division duplexing (TDD) type of scheduling, the capacity can be increased through the control of interference. Simulation results validate the throughput gain, which is about 6~9% under ideal condition

Keywords

cellular radio; data communication; interference suppression; multiuser channels; radiofrequency interference; time division multiple access; ARQ rate; BS power allocation; HDR systems; SIR; TDMA systems; base station; cell boundary; code-multiplexing; downlink power allocation; efficient power allocation; interference control; multicell high data rate system; other-cell interference; signal to interference power ratio; simulation results; throughput; throughput gain; time division duplexing; time-multiplexing; Character generation; Downlink; Interference; Land mobile radio cellular systems; Multiaccess communication; Power control; Power engineering and energy; Quality of service; Throughput; Time division multiple access;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th

Conference_Location

Atlantic City, NJ

ISSN

1090-3038

Print_ISBN

0-7803-7005-8

Type

conf

DOI

10.1109/VTC.2001.957134

Filename

957134