Uplink scheduling in OFDMA systems using opportunistic beamforming

Opportunistic beamforming is investigated in OFDMA uplink. A low complexity scheduling algorithm for utility maximization with opportunistic beamforming is presented. Scheduling with greedy and proportional fair utilities is studied. A beam is formed in a pseudorandom fashion thus leading to artific...

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Bibliographische Detailangaben
Hauptverfasser:	Yaacoub, Elias, Yaacoub, Charles
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Antenna arrays Array signal processing Diversity methods Fading Fluctuations OFDMA opportunistic beamforming Rayleigh channels resource allocation Resource management scheduling Scheduling algorithm Signal to noise ratio Transmitting antennas uplink
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Beschreibung
Zusammenfassung:	Opportunistic beamforming is investigated in OFDMA uplink. A low complexity scheduling algorithm for utility maximization with opportunistic beamforming is presented. Scheduling with greedy and proportional fair utilities is studied. A beam is formed in a pseudorandom fashion thus leading to artificial fading variations. This allows users to opportunistically benefit from the antenna gain. Results show improved throughput and fairness in the case of opportunistic beamforming even when only a single beam is used.
ISSN:	2156-9711 2156-972X
DOI:	10.1109/WD.2009.5449685