arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1003.2142cs.ITmath.IT
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智能电网中的QoS路由

QoS Routing in Smart Grid

Husheng Li, Weiyi Zhang

摘要:

智能电网是一种新兴的技术,它能够通过价格信号控制电力负荷。在智能电网中,供电方与电力用户之间的通信是一个关键问题.延迟或中断等性能下降可能会对基于定价的控制的稳定性造成重大影响,从而影响智能电网的回报。因此,提出了一种智能电网通信系统的QoS机制,它结合了QoS需求的推导,并在通信网络中应用QoS路由。为了得到的QoS要求,电力负荷和负荷价格映射的动态进行了研究。分析了时延等不同QoS指标对网络性能的影响。然后,通过最大化总收入的优化问题来获得QoS。针对智能电网中高速路由的需求,在推导出QoS需求的基础上,提出了一种简单的贪婪QoS路由算法。它也证明了所提出的贪心算法是一个$K$ -近似。仿真结果表明,该机制和算法能够有效地保证智能电网中的通信QoS。

英文摘要:

Smart grid is an emerging technology which is able to control the power load via price signaling. The communication between the power supplier and power customers is a key issue in smart grid. Performance degradation like delay or outage may cause significant impact on the stability of the pricing based control and thus the reward of smart grid. Therefore, a QoS mechanism is proposed for the communication system in smart grid, which incorporates the derivation of QoS requirement and applies QoS routing in the communication network. For deriving the QoS requirement, the dynamics of power load and the load-price mapping are studied. The corresponding impacts of different QoS metrics like delay are analyzed. Then, the QoS is derived via an optimization problem that maximizes the total revenue. Based on the derived QoS requirement, a simple greedy QoS routing algorithm is proposed for the requirement of high speed routing in smart grid. It is also proven that the proposed greedy algorithm is a $K$-approximation. Numerical simulation shows that the proposed mechanism and algorithm can effectively derive and secure the communication QoS in smart grid.

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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