Adjacent channel interference suppression in FDMA/TDMA mobile radio systems using joint demodulation

Author

Arslan, Husejin ; Gupta, S. Cj ; Bottomley, G.E. ; Cheunakeshu, S.

Author_Institution

Dept. of Electr. Eng., Southern Methodist Univ., Dallas, TX, USA

Volume

2

fYear

1998

fDate

7-11 Jun 1998

Firstpage

723

Abstract

The capacity and signal duality of wireless communications systems can be improved by enhancing receiver performance in the presence of adjacent channel interference (ACI). In this paper, an MLSE receiver for joint demodulation of adjacent channel signals is developed. This receiver provides significant improvement in performance over a wide range of carrier to interference ratios. A practical approach is taken, in which conventional down-conversion of each signal is performed followed by joint demodulation at baseband. To provide coherent reception, a novel form of joint channel estimation is used, exploiting knowledge of the transmit and receive filter responses. Receiver performance is evaluated via simulation for the GSM digital cellular system

Keywords

adjacent channel interference; cellular radio; demodulation; digital radio; frequency division multiple access; interference suppression; maximum likelihood estimation; radio receivers; time division multiple access; ACI; Adjacent channel in; FDMA/TDMA mobile radio systems; GSM digital cellular system; MLSE receiver; adjacent channel interference suppression; capacity; carrier to interference ratio; coherent reception; down-conversion; filter response; joint channel estimation; joint demodulation; maximum likelihood sequence estimation; receiver performance enhancement; signal duality; wireless communications systems; Baseband; Channel estimation; Demodulation; Frequency division multiaccess; Interchannel interference; Land mobile radio; Maximum likelihood estimation; Receivers; Time division multiple access; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 1998. ICC 98. Conference Record. 1998 IEEE International Conference on

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-4788-9

Type

conf

DOI

10.1109/ICC.1998.685105

Filename

685105