Algorithms for coherent diversity combining of M-ary orthogonal signals

Author

Thompson, John S. ; Grant, Peter M. ; Mulgrew, Bernard

Author_Institution

Dept. of Electr. Eng., Edinburgh Univ., UK

Volume

1

fYear

1998

fDate

18-21 May 1998

Firstpage

534

Abstract

This paper discusses the use of coherent demodulation for antenna array receivers employing direct sequence spread spectrum techniques and M-ary orthogonal modulation. Three different approaches are discussed. The first is a conventional receiver using training sequences and decision feedback for channel estimation. The other two techniques employ decisions from a simple non-coherent combining receiver to circumvent the need for training sequences. Simulation results are used to compare their performance in different scenarios

Keywords

cellular radio; code division multiple access; demodulation; diversity reception; radio receivers; spread spectrum communication; DS-CDMA; DS-SS techniques; M-ary orthogonal modulation; M-ary orthogonal signals; antenna array receivers; channel estimation; coherent demodulation; coherent diversity combining algorithms; decision feedback; direct sequence spread spectrum techniques; non-coherent combining receiver; simulation results; training sequences; Antenna arrays; Binary phase shift keying; Channel estimation; Diversity reception; Feedback; Principal component analysis; Radio frequency; Radio transmitters; Receiving antennas; Spread spectrum communication;

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.1998.686631

Filename

686631