Title :
Improving the frame-error-rate of spatial multiplexing in block fading by randomly rotating the signal constellation
Author :
Larsson, Erik G.
Author_Institution :
Dept. of the Electr. & Comput. Eng., George Washington Univ., DC, USA
Abstract :
We demonstrate that one can improve the coded frame-error-rate of spatial multiplexing in block fading by randomly rotating the signal constellation. Unlike linear precoding, our method: 1) does not require coding over time and 2) brings a performance improvement at essentially no additional computational expense. A discussion of the results is provided.
Keywords :
block codes; channel coding; error statistics; fading channels; multiplexing; space-time codes; block fading; channel coding; frame-error-rate; signal constellation; space-time coding; spatial multiplexing; Channel coding; Constellation diagram; Covariance matrix; Crosstalk; Fading; Samarium; Signal generators; Symmetric matrices; Transmitters; Vectors; Block fading; FER; channel coding; frame-error rate; space-time coding; spatial multiplexing;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2004.833805
