A survey and comparison on overlay‐underlay mapping techniques in peer‐to‐peer overlay networks
A survey and comparison on overlay‐underlay mapping techniques in peer‐to‐peer overlay networks
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DOI：
10.1002/dac.3872
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发表时间：
2018-12
影响因子：
2.1
通讯作者：
H. Ijaz;M. Welzl;Bushra Jamil
中科院分区：
文献类型：
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作者：
H. Ijaz;M. Welzl;Bushra Jamil
对等(P2P)覆盖网络最初是为文件共享而开发的，如Napster和Gnutella；但后来，它们在内容共享、媒体流、电话应用等方面变得流行起来。P2P系统中的底层不知情可能导致覆盖路由的次优对等点选择，从而导致性能低下。本文对目前为解决覆盖-参考底图映射问题所开展的研究工作进行了全面综述。大多数基于底图感知的节点选择方案都集中在根据邻近度信息选择最近的节点来寻找最短的覆盖路径。另一类方法是基于被动或主动探测来向P2P应用提供底图信息。一些其他优化建议使用P2P中间件来提取、处理和提炼底层信息，并将其提供给P2P覆盖应用。另一类方法致力于使用互联网服务提供商或第三方根据他们的需求向P2P覆盖应用提供底图信息。我们从操作、优点、局限性和未来方向等方面对解决覆盖-参考底图不匹配的问题进行了最新的回顾和比较。
Peer‐to‐peer (P2P) overlay networks were developed initially for file sharing such as Napster and Gnutella; but later, they have become popular for content sharing, media streaming, telephony applications, etc. Underlay‐unawareness in P2P systems can result in suboptimal peer selection for overlay routing and hence poor performance. In this paper, we present a comprehensive survey of the research work carried out to solve the overlay‐underlay mapping problems up till now. The majority of underlay‐aware proposals for peer selection focus on finding the shortest overlay routes by selecting nearest nodes according to proximity information. Another class of approaches is based on passive or active probing for provision of underlay information to P2P applications. Some other optimizations propose use of P2P middleware to extract, process, and refine underlay information and provide it to P2P overlay applications. Another class of approaches strive to use ISPs or third parties to provide underlay information to P2P overlay applications according to their requirements. We have made a state‐of‐the‐art review and comparison for addressing the overlay‐underlay mismatch in terms of their operation, merits, limitations, and future directions.