Maximizing Throughput in MIMO Networks With Variable Rate Streams

Date Added: Nov 2009
Format: PDF

The problem that the authors consider is that of maximizing throughput in a MIMO network while accounting for variable rate streams on MIMO links. The stream rates on a link depend on the channel conditions of the link, and the manner in which the diversity-multiplexing tradeoff is handled. In this paper, they use the dependence of stream rates on the channel to develop methods of link selection and stream allocation that approximately maximize the aggregate throughput. Maximizing throughput is closely tied to the problem of allocating streams based on the stream rates of the selected links. Doing this optimally is very complex even for networks with 10 or fewer links.