西安电子科技大学学报（自然科学版）2018，Vol.45Issue(1)：55-59,5.DOI:10.3969/j.issn.1001-2400.2018.01.010
大规模MIMO系统下的导频随机接入方案
Pilot random access scheme in massive MIMO systems
摘要
Abstract
To resolve the pilot contamination problem in massive multiple input multiple output(MIMO) systems,a pilot random access scheme called Strongest User Collision Resolution-Timing Advance(SUCR-TA),is proposed.This scheme takes the propagation delay into account,and selects an appropriate TA information for pilot to reduce the number of contenders who will perform the SUCR algorithm,and thus improves the probability of collision resolution.Simulation results demonstrate that,compared to the SUCR algorithm, the SUCR-TA scheme can significantly increase the number of the successful users of the system.关键词
大规模多输入多输出系统/导频污染/最强用户冲突解决算法/定时提前信息Key words
massive multiple input multiple output systems/pilot contamination/strongest-user collision resolution/timing advance分类
信息技术与安全科学引用本文复制引用
李晓洁,李颖,韩会梅..大规模MIMO系统下的导频随机接入方案[J].西安电子科技大学学报（自然科学版）,2018,45(1):55-59,5.基金项目
国家自然科学基金资助项目(61671345) （61671345）
