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The main goal of Cluster-based sensor networks is to decrease system delay and reduce energy consumption. LEACH is a cluster-based protocol for micro sensor networks which achieves energy-efficient, scalable routing and fair media access for sensor nodes. However, the election of a malicious or compromised sensor node as the cluster head is one the most significant breaches in cluster-based wireless...
This paper focuses on fault tolerance of super-nodes in P2P-SIP systems. The large-scale environments such as P2P-SIP networks are characterized by high volatility (i.e. a high frequency of failures of super-nodes). Most fault-tolerant proposed solutions are only for physical defects. They do not take into account the timing faults that are very important for multimedia applications such as telephony...
Geographic location and Grid computing are two areas that have taken off in recent years, both receiving a lot of attention from research community. The Grid Resource Brokers, which tries to find the best match between the job requirements and the resources available on the Grid, can take benefits by knowing the geographic location of clients, for a considerable improvement of their decision-taking...
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