ADAPTIVE TRANSMISSION MODE SELECTIONIN LTE-ACARRIER AGGREGATION SCENARIOS

摘要：

Carrier aggregation is one of the most distinct features of 4G systems including LTE-A (Long Term Evolution Advanced), which is being standardized in 3GPPas part of LTE Release 10.The closed-loop concept with codebook based precodingMIMO (multiple-input multiple-output) and transmission mode selection,termed as RI (rank indicator) selection, have been deployed in LTE-A systems to provide high system performance required by 4G systems. This article focuses on the study of adaptive transmission mode selection in LTE-A carrier aggregation scenarios.We propose anadaptive transmission mode selectionscheme using average channel capacity and BER tomaximize the average spectral efficiency (ASE) with a given target bit error ratio (BER). Numerical results demonstrate improvementover each fixed modein terms of average spectralefficiency.

关键词： LTE-Advanced Closed-Loop RI

作者: Yang Yu Feiyan Yan Chaowei Wang Yinghai Zhang

作者单位: Key Laboratory of Universal Wireless Communications, Ministry of EducationBeijing University of Post Information&Electronics Technology Laboratory, Beijing University of Posts and Telecommunications, B Information&Electronics Technology Laboratory,Beijing University of Posts and Telecommunications, Be

会议类型: 国际会议

会议名称: 2011 International Conference on Communications Technology and Applications(2011年通信技术与应用国际会议 ICCTA 2011)

会议地点: 北京

会议语种:英文

页码: 1-6

在线出版日期: 2011-10-14（万方平台首次上网日期，不代表论文的发表时间）