期刊名称:International Journal of Computer Science & Technology
印刷版ISSN:2229-4333
电子版ISSN:0976-8491
出版年度:2011
卷号:2
期号:3
出版社:Ayushmaan Technologies
摘要:Intermittently connected mobile networks are wireless networks where most of the time there does not exist a complete path from the source to the destination. There are many real networks that follow this model, for example, wildlife tracking sensor networks, military networks, vehicular ad hoc networks, etc. In this context, conventional routing schemes fail, because they try to establish complete end-to-end paths, before any data is sent. To deal with such networks generally we use flooding-based routing schemes. While flooding-based schemes have a high probability of delivery, they waste a lot of energy and suffer from severe contention which can significantly degrade their performance. Furthermore, proposed efforts to reduce the overhead of floodingbased schemes have often been plagued by large delays. With this in mind, in this paper a new family of routing schemes that “spray” a few message copies into the network, and then route each copy independently towards the destination. If carefully designed, spray routing not only performs significantly fewer transmissions per message, but also has lower average delivery delays than existing schemes. attac
关键词:Ad hoc networks; delay tolerant networks; intermittent connectivity;routing.ve