Title :
Optimization of non-cooperative P2P network from the game theory point of view
Author :
Rozario, Fabian ; Han, Zhu ; Niyato, Dusit
Author_Institution :
Dept. of Electr. & Comput. Eng. Dept., Univ. of Houston, Houston, TX, USA
Abstract :
BitTorrent is a peer-to-peer (P2P) file sharing protocol, which overcomes the bottleneck of server bandwidth by allowing peers to share the downloaded data directly. However, the greedy and non-cooperative behavior (such as leeching) of individual peer can degrade the performance of P2P significantly. In this paper, we optimize the non-cooperative P2P network from the game theory point of view. Specifically, we investigate the scenarios of pure Nash equilibrium, mixed Nash equilibrium, correlated equilibrium, and pure cooperation. We study the users´ behaviors as a good peer (i.e., uploading data to others) or a bad peer (i.e., only downloading data). The results provide a guidance for the server with the presence of greedy peers. Analysis and simulation results show the network behaviors under the different scenarios, which can provide guidance to practical distributed design in large scale networks.
Keywords :
access protocols; game theory; optimisation; peer-to-peer computing; BitTorrent; correlated equilibrium; game theory; greedy peers; leeching; mixed Nash equilibrium; noncooperative P2P network; optimization; peer-to-peer file sharing protocol; pure cooperation; server bandwidth; Delay; Games; Nash equilibrium; Peer to peer computing; Servers; Simulation; Correlated Equilibrium; Nash Equilibrium; P2P Network;
Conference_Titel :
Wireless Communications and Networking Conference (WCNC), 2011 IEEE
Conference_Location :
Cancun, Quintana Roo
Print_ISBN :
978-1-61284-255-4
DOI :
10.1109/WCNC.2011.5779246