The performance of spatial multiplexing systems with linear minimum-mean-squared-error receivers is investigated in ad hoc networks. It is shown that single-stream transmission is preferable over multi-stream transmission, due to the weaker interference powers from the strongest interferers remaining after interference-cancelation. This result is obtained by new exact closed-form expressions we derive for the outage probability and transmission capacity.
@article{arxiv.1003.3056,
title = {Spatial multiplexing with MMSE receivers: Single-stream optimality in ad hoc networks},
author = {Raymond H. Y. Louie and Matthew R. McKay and Nihar Jindal and Iain B. Collings},
journal= {arXiv preprint arXiv:1003.3056},
year = {2010}
}
Comments
5 pages, 3 figures, submitted to IEEE Globecom 2010