Channel coding for cochannel interference suppression in wireless communication systems

Author

Seshadri, N. ; Calderbank, A.R. ; Pottie, G.

Author_Institution

AT&T Bell Labs., Murray Hill, NJ, USA

Volume

2

fYear

1995

fDate

25-28 Jul 1995

Firstpage

629

Abstract

Cochannel interference is a major impairment in cellular systems. In practice the performance of time and frequency division multiple access (TDMA and FDMA) systems is limited by a few dominant cochannel interferers. Conventional channel coding techniques treat this interference as noise to mitigate its effect. It is shown that cochannel interference can be totally suppressed by using a adaptive nonlinear decoder. We illustrate our ideas using codes in a real (complex) field as well as codes in a finite field. The decoding technique can be combined with antenna diversity to offer increased interference suppression capability

Keywords

adaptive decoding; cellular radio; channel coding; cochannel interference; diversity reception; encoding; frequency division multiple access; interference suppression; land mobile radio; radiofrequency interference; time division multiple access; FDMA systems; TDMA; TDMA systems; adaptive nonlinear decoder; antenna diversity; cellular systems; channel coding; cochannel interference suppression; complex field; decoding; finite field; frequency division multiple acces; noise; real (complex) field; time division multiple access; wireless communication systems; Channel coding; Diversity reception; Frequency conversion; Frequency division multiaccess; Galois fields; Interchannel interference; Linear antenna arrays; Maximum likelihood decoding; Time division multiple access; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1995 IEEE 45th

Conference_Location

Chicago, IL

ISSN

1090-3038

Print_ISBN

0-7803-2742-X

Type

conf

DOI

10.1109/VETEC.1995.504944

Filename

504944