Coded modulation schemes for communication in a noisy channel with noncoherent demodulation

Author

Stark, Wayne E. ; Cheng, Victor Wen-Kai ; Wang, Yi-Pin

Author_Institution

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

Volume

2

fYear

1997

fDate

20-22 Aug 1997

Firstpage

620

Abstract

We describe a technique for getting improved coded-modulation performance by using a combination of convolutional codes and a subcode of the nonlinear Nordstrom-Robinson codes on a wireless communications channel. This combination allows for noncoherent demodulation with nonorthogonal signals and obtains large distance between coded waveforms. Since it is nearly as easy to demodulate the Nordstrom-Robinson code as a standard orthogonal modulation the gain is achieved without significant complexity increase

Keywords

Rayleigh channels; convolutional codes; demodulation; fading; modulation coding; radiocommunication; coded modulation performance; coded waveforms distance; convolutional codes; gain; independent Rayleigh faded channel; noisy channel communication; noncoherent demodulation; nonlinear Nordstrom-Robinson codes; nonorthogonal signals; orthogonal modulation; subcode; wireless communications channel; Code standards; Communication standards; Convolution; Convolutional codes; Decoding; Demodulation; Euclidean distance; Hamming distance; Interleaved codes; Modulation coding;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Computers and Signal Processing, 1997. 10 Years PACRIM 1987-1997 - Networking the Pacific Rim. 1997 IEEE Pacific Rim Conference on

Conference_Location

Victoria, BC

Print_ISBN

0-7803-3905-3

Type

conf

DOI

10.1109/PACRIM.1997.620339

Filename

620339