Transmission Rate Optimization in Cooperative Location-aware Cognitive Radio Networks

被引:0
作者
Xu, Xinglong [1 ]
Li, Liyan [1 ]
Cai, Yunlong [1 ]
Chen, Xihan [1 ]
Zhao, Minjian [1 ]
机构
[1] Zhejiang Univ, Coll ISEE, Hangzhou, Peoples R China
来源
2019 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC) | 2019年
基金
中国国家自然科学基金;
关键词
Transmission rate; cognitive radio; cooperative localization; power allocation; WIDE-BAND LOCALIZATION; FUNDAMENTAL LIMITS; POWER ALLOCATION; INFORMATION;
D O I
暂无
中图分类号
TN [电子技术、通信技术];
学科分类号
0809 ;
摘要
Cooperative localization can compensate weaknesses of traditional localization techniques which do not operate well in harsh environment. However, cooperative localization signals increase the interference power for communication. In this work, we seek to joint localization and transmission power in order to maximize the transmission rate of secondary user under the power budget and primary users' outage constraints. At the same time, we consider the trade-off between localization error and localization interference when formulating the above problem in cooperative localization. The proposed optimization problem is nonconvex and highly coupled, which is challenging to solve. To simplify the problem, we introduce some auxiliary variables to the original optimal problem and apply a algorithm based on concave-convex procedure (CCCP). The simulation results demonstrate the advantages of location-aware network based on cooperative localization.
引用
收藏
页数:6
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