Optimal sensing, fusion and transmission with primary user protection for energy-efficient cooperative spectrum sensing in CRNs

被引：13
|
作者：
Awasthi, Meenakshi [1 ]
Nigam, Madhav J. [1 ]
Kumar, Vijay [1 ]
机构：
[1] Indian Inst Technol Roorkee, Roorkee 247667, Uttar Pradesh, India
来源：
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS | 2019年 / 98卷
关键词：
Cognitive radio; Energy efficiency; Cooperative spectrum sensing; Efficient hard decision fusion rule; Iterative sub optimal algorithm; OPTIMAL POWER ALLOCATION; COGNITIVE RADIO; CHANNELS; STRATEGY;
D O I：
10.1016/j.aeue.2018.10.031
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, energy efficiency for cooperative spectrum sensing in cognitive radio network is investigated and optimized. The novel mathematical formulation of energy efficiency maximization problem by considering number of secondary users, sensing time, and transmission time as design parameters with protection of primary user from SU transmission has been done. In order to solve the formulated problem, first the optimal expression for number of secondary users is formulated, then, an iterative sub optimal algorithm is proposed to obtain optimal sensing and transmission time. Numerical results and illustrative plots demonstrate the correctness and optimality of the proposed algorithm and show the improved performance over the state of arts. (C) 2018 Elsevier GmbH. All rights reserved.
引用
收藏
页码：95 / 105
页数：11
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