认知无线电网络中的基站节能策略及纳什均衡研究

doi:10.11959/j.issn.1000-436x.2016146

通信学报 ›› 2016, Vol. 37 ›› Issue (7): 172-181.doi: 10.11959/j.issn.1000-436x.2016146

认知无线电网络中的基站节能策略及纳什均衡研究

马晓彤^1,²,金顺福^1,²,刘建平^1,³,霍占强⁴

¹ 燕山大学信息科学与工程学院，河北秦皇岛 066004
² 河北省计算机虚拟技术与系统集成重点实验室，河北秦皇岛 066004
³ 河北科技师范学院数学与信息科技学院，河北秦皇岛 066004
⁴ 河南理工大学计算机科学与技术学院，河南焦作 454000

出版日期:2016-07-25 发布日期:2016-07-28
基金资助:
国家自然科学基金资助项目;国家自然科学基金资助项目

Study on energy saving strategy and Nash equilibrium of base station in cognitive radio network

Xiao-tong MA^1,²,Shun-fu JIN^1,²,Jian-ping LIU^1,³,Zhan-qiang HUO⁴

¹ School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China
² The Key Laboratory for Computer Virtual Technology and System Integration of Hebei Province, Qinhuangdao 066004, China
³ Hebei Normal University of Science and Technology, Qinhuangdao 066004, China
⁴ College of Computer Science and Technology, Henan Polytechnic University, Jiaozuo 454000, China

Online:2016-07-25 Published:2016-07-28
Supported by:
The National Natural Science Foundation of China;The National Natural Science Foundation of China

摘要/Abstract

摘要：

认知无线电网络在提高频谱利用率的同时，带来了通信能耗增大的问题。在满足用户体验质量的前提下，引入绿色通信的理念，面向基站提出一种新型节能策略。通过构建具有抢占式优先服务和单重工作休假机制的二维离散时间马尔可夫随机模型，运用矩阵几何解方法，从系统节能率、信道利用率、认知用户平均延迟及认知用户中断率等方面评估节能策略的系统性能，并综合理论分析结果和仿真统计结果，验证节能策略的有效性。从经济学角度出发，构造收益函数，设计非线性智能优化算法，研究认知用户数据分组的纳什均衡与社会最优行为，面向认知用户制定授权频谱的定价方案。针对不同的系统参数，进行系统实验，验证定价方案的合理性。

关键词: 认知无线电网络, 节能策略, 单重工作休假, 智能优化, 定价方案

Abstract:

Spectrum utilization can be improved in cognitive radio network (CRN), however, the problem of increasing communication energy consumption was also brought. Under the premise of ensuring the experience quality of system users, the concept of green communication in CRN was introduced, and a novel energy saving strategy for base station was proposed. Accordingly, a two-dimensional discrete time Markov stochastic model with preemptive priority service and single working vacation was established. Using the method of a matrix geometric solution, the system performance of the energy saving strategy was evaluated in terms of energy saving rate, channel utilization, average delay of secon-dary users and interruption of secondary users. The theoretical analysis results and the simulation results verify the effec-tiveness of the energy saving strategy. From the perspective of economics, a profit function was constructed and a nonlinear optimization algorithm was designed to investigate the Nash equilibrium and the socially optimal behavior of the secondary user packets, then a pricing policy of licensed spectrum for secondary users was formulated. In view of different system parameters, the system experiment was carried out to validate the rationality of the pricing policy.

Key words: cognitive radio network, energy saving strategy, single working vacation, intelligent optimization, pricing policy

马晓彤,金顺福,刘建平,霍占强. 认知无线电网络中的基站节能策略及纳什均衡研究[J]. 通信学报, 2016, 37(7): 172-181.

Xiao-tong MA,Shun-fu JIN,Jian-ping LIU,Zhan-qiang HUO. Study on energy saving strategy and Nash equilibrium of base station in cognitive radio network[J]. Journal on Communications, 2016, 37(7): 172-181.

图/表 9

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图5

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图7

表1

认知用户数据分组社会最优行为数值结果"

授权用户数据分组到达率λ_pu	休眠参数θ	认知用户数据分组社会最优到达率 $λ_{s u}^{*}$	最大社会收益 $U_{s o c}^{*}$
0.20	0.40	0.252 1	1.007 3
0.20	0.60	0.224 9	1.069 8
0.20	0.80	0.181 9	1.124 1
0.27	0.40	0.196 2	0.788 9
0.27	0.60	0.168 8	0.854 9
0.27	0.80	0.125 4	0.911 8

表1

表2

授权频谱接入费用数值结果"

授权用户数据分组到达率λ_pu	休眠参数θ	认知用户数据分组社会最优到达率 $λ_{s u}^{*}$	授权频谱接入费用 f
0.20	0.40	0.252 1	2.252 4
0.20	0.60	0.224 9	2.425 4
0.20	0.80	0.181 9	2.517 4
0.27	0.40	0.196 2	1.775 1
0.27	0.60	0.168 8	1.927 6
0.27	0.80	0.125 4	2.014 6

表2

参考文献 14

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认知无线电网络中的基站节能策略及纳什均衡研究

Study on energy saving strategy and Nash equilibrium of base station in cognitive radio network

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