Guanyu Wu
ABSTRACT
In this paper we study the interactions between peer selection, routing and channel assignment while deploying a novel P2P (Peer-to-Peer) system, IPFS (Inter Planetary File System), over Wireless Mesh Networks (WMNs). Because common P2P protocols do not consider the structure of the physical underlay while performing topology management, we propose a novel peer selection algorithm for WMNs. It incorporates a cross-layer path load metric and integrates the load balancing capability throughout the P2P download process in order to reduce the overall file download time. We modify the default IPFS peer selection strategy to integrate the 802.11s MAC-layer link information as priority criteria, thereby achieving underlay awareness at the application layer without introducing any changes to the MAC layer. Extensive simulations are carried out to compare our method with IPFS's default strategy. The results show that the proposed method can reduce the average download completion time up to 15%.
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Index Terms
- A novel cross-layer P2P mechanism for dynamic wireless mesh networks
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