Energy-efficient time and energy resource allocation in non-selfish symbiotic cognitive relaying sensor network with privacy preserving for smart city

EURASIP Journal on Wireless Communications and Networking

Peng Gong¹  Xiang Gao¹  Huibo Li¹  Ping Li¹  Yu Liu¹ 

[1] School of Mechatronical Engineering, Beijing Institute of Technology, 100081, Beijing, China;

关键词: Wireless sensor network;    Energy efficiency;    Primary user;    Cognitive relaying;    Privacy preserving;   

DOI  :  10.1186/s13638-021-01903-9

来源: Springer

【 摘 要 】

Energy efficiency and privacy preserving have become essential for the wireless sensor networks. In this paper, a joint energy and time resource allocation problem for the cognitive users (CUs) in a non-selfish symbiotic cognitive relaying scheme (NSCRS) is considered. We aim to maximize the total energy efficiency (EE) of the primary user and CUs with the consideration of information privacy under the total energy constraints of CUs. With full channel state information (CSI), an optimal energy and time resource allocation algorithm is proposed based on the exhaustive searching. Besides, in order to reduce the overhead of CSI feedback, a suboptimal algorithm, in which only the partial instantaneous CSI is required, is additionally proposed. Simulation results demonstrate the EE of primary and CUs in the NSCRS with consideration of information privacy can be greatly improved by the proposed algorithms.

【 授权许可】

CC BY