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 contribution||Performance analysis for partial feedback downlink MIMO with unitary codebook beamforming for LTE|
|Title of host publication||IEEE International Conference on Communications Workshops, 2009 (ICC Workshops 2009), Dresden, Germany|
|Publisher||Institute of Electrical and Electronics Engineers (IEEE)|
|Pages||1 - 5|
|Number of pages||5|
|Publication status||Published - Jun 2009|
|Event||International Conference on Communications Workshops - Dresden, Germany|
Duration: 1 Jun 2009 → …
|Conference||International Conference on Communications Workshops|
|Period||1/06/09 → …|
Bibliographical noteRose publication type: Conference contribution
Additional information: With accompanying conference presentation
Sponsorship: The authors wish to acknowledge the financial support of Toshiba Research Limited (TREL)
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