| B^3A： Prompting Cooperation Among Rational Participants in P2P Bulk File Sharing Environments |
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| 引用本文： | 陈明,杨广文,刘学铮,郑纬民.B^3A： Prompting Cooperation Among Rational Participants in P2P Bulk File Sharing Environments[J].清华大学学报,2006,11(1):44-49. |
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| 作者姓名： | 陈明 杨广文 刘学铮 郑纬民 |
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| 作者单位： | Department of Computer Science and Technology Tsinghua University，Beijing 100084 China，Department of Computer Science and Technology Tsinghua University，Beijing 100084 China，Department of Computer Science and Technology Tsinghua University，Beijing 100084 China，Department of Computer Science and Technology Tsinghua University，Beijing 100084 China |
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| 基金项目： | Supported by the National Natural Science Foundation of China (Nos. 60373004, 60373005, 60273007, and 2003CB3169007), and the Na-tional High-Tech Research and Development (863) Program of China (No. 2002AA104580) |
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| 摘 要： | Introduction Peer-to-peer (P2P) file sharing systems, such as Ka- ZaA1] , Gnutella2] , eMule3] , eDonkey4] , and Bit Tor- rent (B.T.)5] , have been becoming more and more popular nowadays. Such systems’ success greatly relies on each participant’s …
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| 关 键 词： | 文件共享系统 对等网络 激励机制 文件下载 |
| 收稿时间： | 2004-09-06 |
| 修稿时间： | 2004-09-062005-06-26 |
BA: Prompting Cooperation Among Rational Participants in P2P Bulk File Sharing Environments |
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| Ming Chen, &#x; , Guangwen Yang, &#x;ï&#x;, Xuezheng Liu, &#x; î,Weimin Zheng,
ຬ .BA: Prompting Cooperation Among Rational Participants in P2P Bulk File Sharing Environments[J].Tsinghua Science and Technology,2006,11(1):44-49. |
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| Authors: | Ming Chen &#x; Guangwen Yang &#x;ï&#x; Xuezheng Liu &#x; î Weimin Zheng
ຬ |
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| Institution: | Department of Computer Science and Technology, Tsinghua University, Beijing 100084, China |
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| Abstract: | Peer-to-peer (P2P) file sharing systems assume that their users download files in proportion to their sharing. Unfortunately, users are unlikely to do so without an incentive mechanism. Previous solutions to the problem required some types of centralized control, which strays from the spirit of P2P to provide long-term incentives. This paper presents the balance-based bandwidth allocation, B3A, an incentive framework to inspire participants to share files. In the B3A framework, each peer keeps the differences be- tween the amount of data it has received from each peer and the amount it has sent to that one. When re- ceiving simultaneous requests from various peers, the peer prefers to allocate its limited upload bandwidth to those peers with larger differences. Therefore, the downloading bandwidth perceived by a peer is posi- tively related to its contributions to others, consequently stimulating it to share more files. The B3A frame- work is fully decentralized, scalable, and secure. |
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| Keywords: | peer-to-peer (P2P) file sharing incentive |
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