Fair Asynchronous Random Access with Probabilistic Antenna Allocation in MIMO Multihop Networks
This invention is the first asynchronous multiple input/multiple output media access control (MIMO MAC) protocol that counters starvation and provides fairness. The invention exploits antenna selection and uses standard network utility maximization to find the number of used antennas per link in a given interference scenario. It devises a MAC protocol that allocates antennas via a probabilistic estimation methodology that (i) incorporates multi-level carrier sensing to estimate the number of interfering streams and (ii) probabilistically allocates antennas to ensure fair and nonstarving access. Different policies can be realized with the protocol including throughput maximization subject to non-starvation and proportional fairness.
Potential Applications Possible applications include digital television (DTV), wireless local area networks (WLANs), metropolitan area networks (MANs), and mobile communications.
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