http://www.cnr.it/ontology/cnr/individuo/prodotto/ID83736

Maximizing Throughput in MIMO Networks with Variable Rate Streams (Contributo in atti di convegno)

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Maximizing Throughput in MIMO Networks with Variable Rate Streams (Contributo in atti di convegno) (literal)

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Santi P.; Srinivasan R.; Blough D.; Cortes-Pena L. M. (2010)
Maximizing Throughput in MIMO Networks with Variable Rate Streams
in European Wireless, Lucca
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ABSTRACT: The problem that we consider is that of maximizing throughput in a MIMO network while accounting for vari- able 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 work, we use the dependence of stream rates on the chan- nel to develop methods of link selection and stream alloca- tion that approximately maximize the aggregate throughput. Maximizing throughput is closely tied to the problem of allo- cating streams based on the stream rates of the selected links. Doing this optimally is very complex even for networks with 10 or fewer links. We develop a stream allocation heuristic that approximately maximizes the throughput over a given set of links. Simulation results for single collision domain networks show that our stream allocation heuristic is within 6% of optimal in networks with up to 10 links (in a typical case where the maximum concurrency a (literal)

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