Title :
Derivative of BICM mutual information
Author :
Fabregas, Albert Guillen i ; Martinez, A.
Author_Institution :
Univ. of Cambridge, Cambridge
Abstract :
The derivative of the mutual information corresponding to bit-interleaved coded modulation systems is determined. The derivative follows as a linear combination of minimum-mean-squared error functions of a coded modulation set. The result finds applications in the analysis of communications systems in the wideband regime and in the design of power allocation over parallel channels.
Keywords :
channel coding; interleaved codes; mean square error methods; modulation coding; BICM mutual information; bit-interleaved coded modulation; coded modulation set; minimum-mean-squared error function; parallel channel; power allocation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20072376
