정보통신설비학회논문지 (Journal of The Institute of Information and Telecommunication Facilities Engineering)
- 제10권4호
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- Pages.121-127
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- 2011
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- 1598-6586(pISSN)
계층적 P2P 시스템의 효율적 관리를 위한 네트워크 거리 기반 운영 기법
An Efficient Management Scheme of Hierarchical P2P System based on Network Distance
- Hong, Chung-Pyo (student in Computer Science, at Yonsei University) ;
- Kim, Cheong-Ghil (Namseoul University) ;
- Kim, Shin-Dug (Dept. of Computer Science, Yonsei University)
- 투고 : 2011.09.29
- 심사 : 2011.12.17
- 발행 : 2011.12.31
초록
Many peer-to-peer (p2p) systems have been studied in distributed, ubiquitous computing environments. Distributed hash table (DHT)-based p2p systems can improve load-balancing even though locality utilization and user mobility are not guaranteed. We propose a mobile locality-based hierarchical p2p overlay network (MLH-Net) to address locality problems without any other services. MLH-Net utilizes mobility features in a mobile environment. MLH-Net is constructed as two layers, an upper layer formed with super-nodes and a lower layer formed with normal-nodes. Because super-nodes can share advertisements, we can guarantee physical locality utilization between a requestor and a target during any discovery process. To overcome a node failure, we propose a simple recovery mechanism. The simulation results demonstrate that MLH-Net can decrease discovery routing hops by 15% compared with JXTA and 66% compared with Chord.