Parallel acquisition of multicarrier direct-sequence spread-spectrum signals in partial-band interference

Author

Block, Frederick J. ; Baum, Carl W.

Author_Institution

Dept. of Electr. & Comput. Eng., Clemson Univ., SC, USA

Volume

2

fYear

1999

fDate

6/21/1905 12:00:00 AM

Firstpage

1090

Abstract

The frequency diversity of multicarrier direct-sequence signaling can potentially offer robust performance in frequency-selective channels. This paper focuses on the acquisition of multicarrier signals in channels containing fading and partial-band interference. The maximum-likelihood decision rule for parallel acquisition in frequency selective fading and partial-band interference is derived. Several simpler, near-optimal decision rules are also discussed. The performance of these decision rules is compared to that of equal-gain combining for multicarrier acquisition. Results show that the decision rules designed specifically for partial-band interference give significantly better performance

Keywords

code division multiple access; decision theory; diversity reception; fading channels; multiuser channels; radiofrequency interference; spread spectrum communication; CDMA; DS-SS; equal-gain combining; fading channels; frequency diversity; frequency selective fading; frequency-selective channels; maximum-likelihood decision rule; multicarrier acquisition; multicarrier direct-sequence signaling; multicarrier direct-sequence spread-spectrum signals; near-optimal decision rules; parallel acquisition; partial-band interference; performance; Bandwidth; Diversity reception; Fading; Frequency diversity; Interference; Multiaccess communication; Protection; Rayleigh channels; Robustness; Spread spectrum communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Military Communications Conference Proceedings, 1999. MILCOM 1999. IEEE

Conference_Location

Atlantic City, NJ

Print_ISBN

0-7803-5538-5

Type

conf

DOI

10.1109/MILCOM.1999.821371

Filename

821371