We extend kleinberg s small - world model by allowing each node x to have two more random links to nodes chosen uniformly and randomly within manhattan distance from x 在此模型中，每个节点除了跟网格的local节点相连外，还跟long - range节点以d - harmonic随机分布方式相连。
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This paper briefly describes the extension of point - to - point communication link to node - connected communication network and of multiplex to multi - access technologies 摘要概述了从点点线路至结点联成通信网和从多路技术至多址技术的发展过程，解释了光纤通信网发掘利用潜在容量以及建立未来高速通信网的关键问题。
