2007/01/09 by Amin Mobasher, Mobasher, Amin, Amir K. Khandani +1
Computer Science · Engineering · Mathematics · #Advanced MIMO Systems Optimization #Advanced Wireless Communication Techniques #Cooperative Communication and Network Coding #cs.IT #math.IT
paper · pdf · doi:10.48550/arxiv.cs/0701058
arxiv created 2007/04/16 · arxiv updated 2009/12/01
In this paper, we investigate the minimum average transmit energy that can be obtained in multiple antenna broadcast systems with channel inversion technique. The achievable gain can be significantly higher than the conventional gains that are mentioned in methods like perturbation technique of Peel, et al. In order to obtain this gain, we introduce a Selective Mapping (SLM) technique (based on random coding arguments). We propose to implement the SLM method by using nested lattice codes in a trellis precoding framework.