电子科技大学学报2017，Vol.46Issue(5)：666-672,7.DOI:10.3969/j.issn.1001-0548.2017.05.005
异构认知网中基于能效的协作技术研究
Network Cooperation for Energy-Efficient Communication in Multi-RAT Heterogeneous Cognitive Radio Networks
摘要
Abstract
An innovative EE-oriented 'win-win' cooperative transmission scheme in heterogeneous cognitive radio networks (Het-CRNs), called energy-efficient cognitive cooperation (ECC), in which primary system release a part of its radio spectrum to secondary system in exchange for secondary relay (SR) served as a relay to assist transmission of primary user's traffic under the dual quality of service (QoS) requirements. Then, secondary user's traffic flow is split into the unlicensed spectrum and the released licensed spectrum to improve EE in Het-CRNs. Based on ECC, we formulate a weighted EE maximization non-convex problem for secondary users. By employing parametric fractional programming and golden section search (GSS) method, an efficient resource allocation policy is developed. Simulation results show that the proposed strategy can gain significantly higher EE without reducing performance of primary transmission, and thus, a 'win-win' goal is achieved.关键词
认知无线电/能量效率/异构网络/资源分配/中继传输Key words
cognitive radio/energy efficiency/multi-rat heterogeneous networks/resource allocation/relay transmission分类
信息技术与安全科学引用本文复制引用
冯立,邝育军,代泽洋,付新川..异构认知网中基于能效的协作技术研究[J].电子科技大学学报,2017,46(5):666-672,7.基金项目
国家自然科学基金(61471089, 61071099) （61471089, 61071099）
四川省教育厅科研项目(16ZB0504)本 文 研 究 工 作 得 到 了 华 为 公 司 项 目(YB2014110120)的资助,在此表示感谢. （16ZB0504）
