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arXiv 2410.01554cs.NI
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认知无线电网络中协作频谱共享的加权和功率最小化

Weighted Sum Power Minimization for Cooperative Spectrum Sharing in Cognitive Radio Networks

Yang Yu

AI总结:

针对认知无线电协作频谱共享,本文提出以加权和功率为优化目标,利用线性规划与Newton法设计低复杂度次优资源分配方案,并优化初始值以实现近优且快速的性能。

摘要:

本信函引入了加权和功率(WSP)这一新的性能指标,用于认知无线电网络中协作频谱共享期间的无线资源分配;在该网络中,主节点和次节点具有不同的优先级和服务质量(QoS)需求。与将能量效率(EE)和加权和能量效率(WSEE)用作面向绿色通信的无线资源分配性能指标和优化目标相比,WSP的线性特性可以降低优化问题的复杂度。同时,分配给不同节点的权重有助于管理其功率预算。以WSP作为优化目标,本文提出了一种次优资源分配方案,该方案利用线性规划和Newton法。仿真验证了所提方案能够以较低的计算时间提供接近最优的性能。此外,本文还优化了Newton法中初始近似值的选择,以加速所提方案。

英文摘要:

This letter introduces weighted sum power (WSP), a new performance metric for wireless resource allocation during cooperative spectrum sharing in cognitive radio networks, where the primary and secondary nodes have different priorities and quality of service (QoS) requirements. Compared to using energy efficiency (EE) and weighted sum energy efficiency (WSEE) as performance metrics and optimization objectives of wireless resource allocation towards green communication, the linear character of WSP can reduce the complexity of optimization problems. Meanwhile, the weights assigned to different nodes are beneficial for managing their power budget. Using WSP as the optimization objective, a suboptimal resource allocation scheme is proposed, leveraging linear programming and Newton's method. Simulations verify that the proposed scheme provides near-optimal performance with low computation time. Furthermore, the initial approximate value selection in Newton's method is also optimized to accelerate the proposed scheme.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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