基于宽带OFDM电力线通信的载波资源分配算法
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引用本文:刘耀辉1,罗建勇2,时昌剑3.基于宽带OFDM电力线通信的载波资源分配算法[J].电网与清洁能源,2018,34(1):96~100
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作者单位
刘耀辉1 1. 国网陕西省电力公司 宝鸡供电公司 
罗建勇2 2. 国网陕西省电力公司 铜川供电公司 
时昌剑3 3. 北京中宸泓昌科技有限公司 
中文摘要:陕西地区传统电力线系统主要是窄带通信,若考虑到宽带OFDM电力线通信时,就面临着如何将载波资源进行有效分配的问题。鉴于此,提出了一种基于拍卖框架的载波资源分配方法,叫做基于中继拍卖(Relay Auction)的宽带OFDM电力线通信的载波资源分配,简称RA方法。主要用于解决宽带OFDM电力线通信中载波分配的效率与公平性,并且实现较好的连接阻塞概率性能。算法主要基于拍卖的框架,其中配备了网络中的集中器作为拍卖人,而簇头结点作为投标人,彼此竞争宽带OFDM通信网络中的载波资源,叶子结点通过簇头结点中继获得资源。本方法采用了源结点、中继结点和目的结点间的层级稳健结构,增强了系统的稳健性,与此同时有效地进行资源分配,实现了全网吞吐量的最大化、公平和效率。
中文关键词:宽带OFDM  载波分配  中继  拍卖
 
Algorithm of Carrier Resource Allocation Based on Broadband OFDM Power Line Communication
Abstract:The traditional power line communication system in Shaanxi is mainly of the narrowband communication. With the broadband OFDM power line communication considered, we face with an issue of how to allocate carrier resources efficiently. In view of this, this paper proposed a carrier resource allocation method based on auction framework, which is called carrier resource allocation of broadband OFDM power line communication based on Relay Auction (RA). This method is mainly used to address the efficiency and fairness of carrier allocation in broadband OFDM power line communication and to achieve better performance of connection blocking probability. The algorithm is mainly based on the auction framework, which is equipped with a concentrator in the network as an auctioneer, while the cluster head node acts as a bidder and competes with each other for carrier resources in a broadband OFDM communication network. Leaf nodes obtains resources through the relaying of cluster head nodes. The proposed method adopts a hierarchical and robust structure between the source node, the relay node and the destination node, which enhances the system robustness and effectively allocates resources at the same time to maximize the throughput of the whole network and to achieve fairness and effectiveness.
keywords:wide band OFDM  carrier assignment  relay  auction
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