Joint Bandwidth and Power Allocation of Hybrid Spectrum Sharing in Cognitive Radio

Zhao, Junhui1,2; Li, Qiuping1; Gong, Yi3

2018

2018 IEEE 87TH VEHICULAR TECHNOLOGY CONFERENCE (VTC SPRING)

345 E 47TH ST, NEW YORK, NY 10017 USA

IEEE

As an effective approach to alleviate the spectrum scarcity problem, cognitive radio (CR) has recently attracted an increasing amount of attention. In this paper, an optimization algorithm that joints bandwidth and power allocation of hybrid spectrum sharing is proposed in CR. According to the location variation of cognitive user (CU) that adopt the random waypoint based mobility models, the state of CU can switch between Underlay spectrum sharing model and Overlay spectrum one. Simultaneously, this algorithm can maximize the channel capacity through jointly optimizing power and bandwidth of CU when the Primary User's (PU's) interference temperature and the CU's transmission can be satisfied. Simulation results show that the proposed algorithm can more effectively improve the channel capacity than the single Underlay system and traditional solutions that the bandwidth is evenly allocated.

Hybrid spectrum sharing bandwidth allocation power allocation location probability

其他

英语

CPCI-S

National Natural Science Foundation of China[61471031][61661021]

Engineering ; Transportation

Engineering, Electrical & Electronic ; Transportation Science & Technology

WOS:000541851800086

Web of Science

1.Beijing Jiaotong Univ, Sch Elect & Informat Engn, Beijing 100044, Peoples R China
2.East China Jiaotong Univ, Sch Informat Engn, Nanchang 330013, Jiangxi, Peoples R China
3.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China

Zhao, Junhui,Li, Qiuping,Gong, Yi. Joint Bandwidth and Power Allocation of Hybrid Spectrum Sharing in Cognitive Radio[C]. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2018.