Multiuser detection for up-link throughput enhancement in mobile packet communications

Author

Suzuki, Hiroshi ; Shinomiya, Takeshi

Author_Institution

Tokyo Inst. of Technol., Japan

Volume

2

fYear

1998

fDate

18-21 May 1998

Firstpage

1493

Abstract

A slotted ALOHA mobile packet communication system utilizing the multiuser detection (MD) is proposed for system capacity enhancement. MD can be easily implemented by using an adaptive interference canceller. Employment of MD enables simultaneous detection of several packets in a collision, which results in system enhancement for increasing the throughput and shortening the average delay time. Detailed theoretical analysis and computer simulation for two multiuser detection in a single cell environment shows: (i) the throughput increases twice as much as that of the conventional one, and (ii) the average delay time becomes half

Keywords

adaptive signal detection; adaptive signal processing; carrier sense multiple access; cellular radio; channel capacity; delays; interference suppression; multiuser channels; packet radio networks; radio links; radiofrequency interference; CSMA; adaptive interference canceller; average delay time; carrier sense multiaccess; collision; mobile packet communications; multiuser detection; packet detection; single cell environment; slotted ALOHA; system capacity enhancement; throughput; up-link throughput enhancement; Base stations; Computer simulation; Delay effects; Fluctuations; Frequency synchronization; Interference cancellation; Maximum likelihood estimation; Mobile communication; Multiuser detection; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1998. VTC 98. 48th IEEE

Conference_Location

Ottawa, Ont.

ISSN

1090-3038

Print_ISBN

0-7803-4320-4

Type

conf

DOI

10.1109/VETEC.1998.686533

Filename

686533