JOURNAL ARTICLE
Overhead Reduction in Coordinated Beamforming for Multiuser MIMO-OFDM Systems with Limited Feedforward
Leonel Soriano-EquiguaJaime SánchezChan‐Byoung ChaeRobert W. Heath
Year: 2011 Journal: IEICE Transactions on Communications Vol: E94-B (11)Pages: 3168-3171 Publisher: Institute of Electronics, Information and Communication Engineers
Abstract
This letter proposes a method for choosing the best quantized beamforming vector that represents a subcarrier group, for coordinated beamforming in the downlink of multiuser multiple input multiple output-orthogonal frequency division multiplexing systems. The correlation between subcarriers is exploited for reducing the feedforward overhead, while maximizing the sum rate.
Keywords:
Subcarrier Beamforming Computer science Orthogonal frequency-division multiplexing Telecommunications link Overhead (engineering) MIMO Reduction (mathematics) MIMO-OFDM Multiplexing Electronic engineering Telecommunications Mathematics Engineering Channel (broadcasting)
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Topics
Advanced MIMO Systems Optimization
Physical Sciences → Engineering → Electrical and Electronic Engineering
Wireless Communication Networks Research
Physical Sciences → Computer Science → Computer Networks and Communications
Advanced Wireless Communication Techniques
Physical Sciences → Engineering → Electrical and Electronic Engineering
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