Performance of trellis-coded direct-sequence spread spectrum with noncoherent reception in a fading environment

Author

Cheng, Victor Wen-Kai ; Stark, Wayne E.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA

Volume

47

Issue

2

fYear

1998

fDate

5/1/1998 12:00:00 AM

Firstpage

579

Lastpage

590

Abstract

In this paper, we consider the performance of different coding schemes for direct-sequence spread spectrum (DS-SS) in a nonselective Rician faded channel. The Nordstrom-Robinson (NR) code, a nonlinear code that has a large distance for a given rate combined with a trellis code, is examined. A bound is developed on the error probability for this trellis-coded NR (TCNR) code with noncoherent reception over a frequency-nonselective Rayleigh or Rician fading channel with additive white Gaussian noise (AWGN). This bound is tighter than the standard union bound. Our results indicate that the standard union bound can be significantly different from the more accurate results obtained from the improved union bound. In addition, there is a considerable coding gain at high signal-to-noise ratio (SNR) for the TCNR code over the conventional DS-SS code at the same data rate

Keywords

Gaussian channels; Rayleigh channels; Rician channels; channel coding; error statistics; fading; radio reception; spread spectrum communication; trellis codes; DS-SS; Nordstrom-Robinson code; TCNR code; additive white Gaussian noise; coding gain; coding schemes; error probability; fading environment; frequency-nonselective Rayleigh fading channel; noncoherent reception; nonlinear code; nonselective Rician faded channel; performance; pseudonoise coded communication; trellis code; trellis-coded NR code; trellis-coded direct-sequence spread spectrum; union bound; AWGN; Binary phase shift keying; Decoding; Error probability; Fading; Nearest neighbor searches; Random sequences; Rician channels; Signal to noise ratio; Spread spectrum communication;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/25.669095

Filename

669095