Resource Allocation for V2X Communications: A Large Deviation Theory Perspective

被引：14
|
作者：
Guo, Chongtao [1 ,2 ]
Liang, Le [3 ]
Li, Geoffrey Ye [3 ]
机构：
[1] Shenzhen Univ, Coll Informat Engn, Guangdong Key Lab Intelligent Informat Proc, Shenzhen 518060, Peoples R China
[2] Xidian Univ, State Key Lab Integrated Serv Networks, Xian 710071, Shaanxi, Peoples R China
[3] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA
来源：
IEEE WIRELESS COMMUNICATIONS LETTERS | 2019年 / 8卷 / 04期
基金：
中国国家自然科学基金; 美国国家科学基金会;
关键词：
Vehicular communications; resource allocation; large deviation theory; power allocation; spectrum allocation; VEHICULAR COMMUNICATIONS; 5G;
D O I：
10.1109/LWC.2019.2908165
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In vehicular communications, one of the key requirements of the vehicle-to-vehicle (V2V) links is to transmit a given amount of data successfully during a given time period. To this end, this letter investigates a spectrum and power allocation problem in vehicular networks to maximize the sum ergodic capacity of the vehicle-to-network (V2N) links subject to the V2V links' data amount violation probability. By using the large deviation theory, we express the data amount outage probability in a tractable form and derive the optimal power allocation for each possible spectrum reusing pair consisting of one V2N link and one V2V link. Then, the optimal spectrum reusing pattern is obtained by addressing a bipartite matching issue. Finally, the effectiveness of our proposal is validated by simulation results.
引用
收藏
页码：1108 / 1111
页数：4
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