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Efficient Flooding Algorithm for Mobile P2P Systems using Super Peer  

Kang, So-Young (연세대학교 컴퓨터과학과)
Lee, Kwang-Jo (연세대학교 컴퓨터과학과)
Yang, Sung-Bong (연세대학교 컴퓨터과학과)
Abstract
As the appearances of various new mobile devices and the explosive growth of mobile device users, many researches related to mobile P2P systems have been proceeded actively. In this paper, we propose a new search algorithm for the double-layered super peer system in the mobile environment. For the proposed search algorithm, we divide the entire experiment region into a grid of cells, each of which has the same size. The grid is configured properly by considering the communication range of a mobile device and the number of peers in the system. The proposed search algorithm is a partial flooding search method based on the directions of cells involved with the search. It reduces successfully the network traffic, but shows a low search hit ratio. To enhance the search hit ratio, we introduce a bridge-peer table for a super peer and utilize an n-way search. The experimental results show that the proposed algorithm made an average of 20~30% reduction in the number of message packets over the double-layered system. The success ratio was also improved about 2~5% over the double-layered system.
Keywords
P2P; Grid; Super-peer; Double-layer system;
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Times Cited By KSCI : 1  (Citation Analysis)
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