Volume 6 - Issue 2
P2P Traffic Optimization based on Congestion Distance and DHT
- Qian He
Key Lab of Cloud Computing and Complex System Guilin University of Electronic Technology, Guilin, 541004 China, Guangxi Key Lab of Automatic Detecting Technology and Instruments Guilin University of Electronic Technology, Guilin, 541004 China
heqian@guet.edu.cn
- Qinghe Dong
Key Lab of Cloud Computing and Complex System Guilin University of Electronic Technology, Guilin, 541004 China
daphny@guet.edu.cn
- Baokang Zhao
Key Lab of Cloud Computing and Complex System Guilin University of Electronic Technology, Guilin, 541004 China, College of Computer, National University of Defense Technology, Changsha, 410073 China
wang@guet.edu.cn
- Yong Wang
Key Lab of Cloud Computing and Complex System Guilin University of Electronic Technology, Guilin, 541004 China
qiangbh@guet.edu.cn
- Baohua Qiang
Key Lab of Cloud Computing and Complex System Guilin University of Electronic Technology, Guilin, 541004 China
bkzhao@nudt.edu.cn
Keywords: P2P Traffic Optimization, Congestion Distance, Bittorent, Win-win
Abstract
P2P traffic has brought serious impact on the bearer network, and how to utilize network bandwidth
has become a common concern problem for the Internet Service Provider (ISP) and the P2P user. A
congestion distance and DHT based P2P traffic optimization method is proposed in this paper. The
P2P traffic optimization model imports both aims of the ISP and the P2P user, and the cost of congestion
and communication for links is converted into congestion distance uniformly. A distributed
scheme with flow controllers and information collectors is realized where information collectors are
constructed to a Distributed Hash Table (DHT) overlay. The traffic optimization application case
using Bittorrent is discussed, where node selection and choking algorithms are changed. The experiment
results show our optimization method can reduce the network traffic of inter autonomous
system (AS) substantially, and react to the network congestion automatically, and then the win-win
result for the ISP and the P2P user is achieved.