Title :
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
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;
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
DOI :
10.1109/PACRIM.1997.620339
