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When fast and accurate channel state information (CSI) at the transmitter is available, opportunistic power control (OPC) is an attractive alternative to signal-to-interference-and-noise ratio (SINR) target following approaches, because it maximizes throughput by taking advantage of fast channel variations. On the other hand, in multiple-input multiple-output (MIMO) systems, open loop schemes such...
Multiple-Input Multiple-output (MIMO) has great potential for improving the throughput of Wireless mesh networks (WMNs). MIMO can increase network throughput via suppressing interference from neighboring links and/or allowing transmission of multiple independent data streams over MIMO antenna elements. However, these throughput gains are limited unless higher layer protocols also exploit these capacities...
We propose an effective resource allocation method to handle OFDMA and multiuser MIMO. This method offers two optimization techniques. In the frequency domain, those subcarriers that are useful for one subscriber station (SS) are allocated to that SS. In the spatial domain, several SSs are selected for spatial multiplexing. In frequency selective fading environments, the number of transmittable bits...
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