Performance analysis for partial feedback downlink MIMO with unitary codebook beamforming for LTE

M Nicolaou, A Doufexi, SMD Armour, Y Sun

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

5 Citations (Scopus)
529 Downloads (Pure)


Until recently, mobile communication tasks have been grouped into different layers in a hierarchical layer approach. In this conventional approach, layer-specific protocols are developed and optimised independently. As new wireless applications emerge, requiring high data rates and flexibility for supporting applications with significantly varying QoS requirements, it has become imperative that a higher level of communication between adjacent layers needs to be established. A unitary codebook based beamforming approach has been proposed for LTE that incorporates an improved cross-layer interface in order to improve service to users according to specified QoS criteria. This paper examines this beamforming approach under partial feedback conditions for different MIMO configurations. It is shown that non-obvious precoding matrix selection strategies and scheduling policies for the DLC, can achieve superior performance for LTE system, whilst meeting the QoS requirements of urgent users.
Translated title of the contributionPerformance analysis for partial feedback downlink MIMO with unitary codebook beamforming for LTE
Original languageEnglish
Title of host publicationIEEE International Conference on Communications Workshops, 2009 (ICC Workshops 2009), Dresden, Germany
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1 - 5
Number of pages5
ISBN (Print)9781424434374
Publication statusPublished - Jun 2009
EventInternational Conference on Communications Workshops - Dresden, Germany
Duration: 1 Jun 2009 → …


ConferenceInternational Conference on Communications Workshops
Period1/06/09 → …

Bibliographical note

Rose publication type: Conference contribution

Additional information: With accompanying conference presentation

Sponsorship: The authors wish to acknowledge the financial support of Toshiba Research Limited (TREL)

Terms of use: Copyright © 2009 IEEE. Reprinted from IEEE International Conference on Communications Workshops, 2009.

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  • LTE
  • MIMO
  • beamforming


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