Title :
Bandwidth efficient multilevel block 8-PSK modulation code for Rician fading channels
Author :
Hoffmann, Karl Heinz
Author_Institution :
Dept. of Network & Signal Theory, Tech. Univ. Darmstadt, Germany
Abstract :
The degree of diversity and thereby the minimum Hamming distance (HD) of a code is known to be the most important design parameter in a perfectly interleaved nonfrequency-selective slowly-fading channel. The concatenation of an inner multilevel block modulation code with an outer nonbinary single parity check (SPC) code yields a doubling of the HD. Simulation results for Rayleigh and Rician fading channels show considerable coding gains compared to uncoded 4-PSK.
Keywords :
block codes; fading; phase shift keying; 8-PSK modulation code; Rayleigh fading; Rician fading channels; coding gains; concatenation; design parameter; diversity; inner multilevel block modulation code; minimum Hamming distance; outer nonbinary single parity check; perfectly interleaved nonfrequency-selective slowly-fading channel;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19930997
