Modeling of uplink power control for cognitive radio networks: Cooperative and noncooperative

Modeling of uplink power control for cognitive radio networks: Cooperative and noncooperative
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认知无线电网络上行链路功率控制建模:合作和非合作

DOI:
10.1016/j.mcm.2010.08.009
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发表时间:
2011-06
影响因子:
--
通讯作者:
Wang, Wenbo
Wang, Wenbo
中科院分区:
--
文献类型:
--
作者:
Wang, Wei;Peng, Tao;Wang, Wenbo

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针对认知无线电网络中的授权用户保护问题,分别考虑了协作和非协作两种方法,对上行链路功率控制问题进行了建模。协作功率控制优化问题被建模为凹最小化问题。根据功率控制优化问题的性质,提出了一种改进的分支定界算法。另一方面,对于非合作功率控制的情况下,采用一个博弈论模型与指数定价函数,以限制对授权用户的干扰。此外,纳什均衡的功率控制博弈进行了讨论。最后,通过计算机仿真对所提出的模型的性能进行了评估。
In this paper, the uplink power control problem is modeled by considering both cooperative and noncooperative methods respectively to protect licensed users in cognitive radio networks. The cooperative power control optimization problem is modeled as a concave minimization problem. According to the properties of the power control optimization problem, an improved branch and bound algorithm is proposed. On the other hand, for the noncooperative power control case, a game theoretic model with the exponential pricing function is adopted to restrict the interference to the licensed users. Further, Nash equilibrium for the power control game is discussed. Finally, the performance of the proposed models is evaluated by computer simulation.
DOI: 10.1109/momuc.1999.819473
发表时间: 1999-11
期刊: 1999 IEEE International Workshop on Mobile Multimedia Communications (MoMuC'99) (Cat. No.99EX384)
影响因子: --
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