Data throughput enhancement in wireless packet systems by improved link adaptation with application to the EDGE system

Author

Chuang, Justin ; Qiu, Xiaoxin ; Whitehead, Jim

Author_Institution

AT&T Labs. Res., Red Bank, NJ, USA

Volume

1

fYear

1999

fDate

1999

Firstpage

456

Abstract

Wireless broadband networking imposes significant challenges for frequency reuse. This paper introduces methods for improving link adaptation, which is essential for achieving high throughput in TDMA wireless packet communications. We present simulation results based on the EDGE (Enhanced Data-rate for GSM Evolution) system with low reuse factor (1/3) but the techniques are applicable for any packet-based frequency-reuse wireless systems. Our proposed enhancement, termed “mode 0,” is a non-transmission mode in addition to the regular transmission modes available in link adaptation. Further enhancement is achieved by using multi-slot assignment with mode 0 as the back off mechanism to control system loading with an acceptable interference level. Simulation results indicate that this simple enhancement, which requires no standard modifications, results in improved throughput even for the disadvantaged users

Keywords

broadband networks; cellular radio; data communication; frequency allocation; packet radio networks; time division multiple access; EDGE system; GSM; TDMA wireless packet communications; back off mechanism; control system loading; data throughput enhancement; frequency reuse; high throughput; interference level; link adaptation; low reuse factor; mode 0; multi-slot assignment; nontransmission mode; packet-based frequency-reuse wireless systems; regular transmission modes; simulation; wireless broadband networking; wireless packet systems; Circuits; Communication system control; Frequency; GSM; Intelligent networks; Interference; Radio spectrum management; Throughput; Time division multiple access; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1999. VTC 1999 - Fall. IEEE VTS 50th

Conference_Location

Amsterdam

ISSN

1090-3038

Print_ISBN

0-7803-5435-4

Type

conf

DOI

10.1109/VETECF.1999.797176

Filename

797176