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With the rapid development of internet, the number of people who are online also increases tremendously. But now a day's we find not only growing positive use of internet but also the negative use of it. The misuse and abuse of internet is growing at an alarming rate. There are large cases of virus and worms infecting our systems having the software(More)
In Wavelength Division Multiplexing (WDM) optical networks, the failure of network resources (e.g., fiber link or node) can disrupt the transmission of information to several destination nodes on a light-tree based multicast sessions. Thus, it is essential to protect multicast sessions by reserving resources along back-up trees. So that if primary tree(More)
Energy consumption is a vital factor in the successful deployment of ad hoc sensor networks because sensor nodes are powered by on board battery which are extremely difficult to be recharged. In this article we have proposed a new routing technique based on the idea of random walk with the objective of saving energy. Our approach is inspired by an existing(More)
The Delay Tolerant Networks (DTNs) are special networks wherein no two nodes share any continuous or dedicated path. Nodes go up and down various times a day and do not behave in any prescribed or probabilistic manner. In such a scenario message flooding seems the easiest solution but it is a costly affair. Network connections being so abrupt, the chance of(More)