Opportunistic beamforming for uplink OFDMA scheduling in severe interference conditions

Opportunistic beamforming is investigated in the context of multicell OFDMA uplink scheduling. A low complexity scheduling algorithm for utility maximization with opportunistic beamforming is presented. Beams are formed in a pseudorandom fashion thus allowing users to opportunistically benefit from the antenna gain and interference rejection capabilities. The simulations for resource allocation in conjunction with opportunistic beamforming are performed in a scenario with severe interference conditions. Results show improved throughput and fairness with opportunistic beamforming, with the improvement increasing with the number of beams.