Search+: A Resource Efficient Peer-to-Peer Service Discovery Mechanism

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Executive Summary

A recent feasibility study suggests that a Service-Oriented Architecture (SOA) will be central within the NATO network enabled capabilities information infrastructure. An important element of a SOA is the service discovery process, but existing solutions are not sufficient in military networks. The authors suggest using a robust Peer-To-Peer (P2P) network as a complement. Unfortunately, available P2P search algorithms have high bandwidth requirements which cannot be supported by low-bandwidth links in tactical networks. This paper describes a new search algorithm named search+ which is designed for tactical networks with limited bandwidth resources. The evaluation of search+ presented in this paper shows that it outperforms existing search algorithms in terms of bandwidth consumption while achieving comparable search success rates.

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