Optimal Selective Feedback Policies for Opportunistic Beamforming
نویسندگان
چکیده
منابع مشابه
Opportunistic beamforming in wireless networks: optimal selective feedback policies and the feedback-capacity tradeoff
O PPORTUNISTIC beamforming is a reduced feedback communication strategy for vector broadcast channels which only requires partial channel state information (CSI) at the base station for its operation. Although reducing feedback, this strategy, in its plain implementations, displays a linear growth in the feedback load with the total number of users in the system, which can be an onerous require...
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In multiantenna systems the optimization of linear spatial precoding is severely hampered by the amount of feedback. An efficient solution consists in the opportunistic beamforming (OB), which randomly generates the precoding and schedules the users according to the corresponding signal-to-noise ratio. Performance of OB can be enhanced by matching the generation of the beamforming to the users ...
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In this paper a successful extension of previously proposed scheme known as Opportunistic Beamforming (OB) is discussed. The previous proposed scheme of OB has an obvious problem concerning fairness amongst the users. To overcome this problem we propose a new Opportunistic algorithm for multiuser environment. The proposed scheme can be interpreted as Opportunistic Multiuser Beamforming (OMB), i...
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ژورنال
عنوان ژورنال: IEEE Transactions on Information Theory
سال: 2013
ISSN: 0018-9448,1557-9654
DOI: 10.1109/tit.2013.2239355