Title
Multiple-CSI selection methods for CoMP downlink
Abstract
Accurate channel state information (CSI) is essential for scheduling and modulation and coding scheme (MCS) selection at eNodeB. For coordinated multi-point (CoMP) transmission, multiple CSIs are necessary for eNodeB to do dynamic switch among different CoMP schemes. Due to the limitation of feedback overhead and user complexity, only N CSIs can be configured for feedback. Under such circumstance, how to select suitable multiple CSIs, and ensure accurate channel quality indicator (CQI) update become an important problem. In this paper, we propose a new two-step CSI selection method to predict proper CoMP scheme and select relevant CSI for accurate CQI update. Simulation evaluation shows that the proposed method provides better performance on both average and edge user throughput than conventional methods through appropriate CSI selection and accurate CQI update.
Year
Venue
Keywords
2013
Asia-Pacific Conference on Communications
CoMP,CSI selection,CQI update,CQI accuracy
Field
DocType
ISSN
Scheduling (computing),Computer science,Computer network,Communication channel,Real-time computing,Coding (social sciences),Modulation,Throughput,EnodeB,Channel state information,Telecommunications link
Conference
2163-0771
Citations 
PageRank 
References 
0
0.34
1
Authors
4
Name
Order
Citations
PageRank
Jing Wang150793.00
Xiang Yun2182.22
Satoshi Nagata362753.40
Lan Chen452.21