CAJ | 학술논문

P2P节点中存在的日益严重的搭便车行为对网络的健壮性、可用性、服务响应速度和生命周期等造成了很大影响。设计合理而有效的P2P信任模型来抑制搭便车行为已成为研究的重点。因此借鉴社会经济发展策略，提出基于资源利用均衡的信誉评价方法即对资源贡献大，以及贡献与消费平衡的节点赋予高信誉度。促使节点在贡献资源时要考虑其他节点的需求，消费资源时则要衡量自身提供资源的能力；同时为新节点提供基本信誉度来保障其尽早开展资源交易。仿真实验表明搭便车行为受到有效抑制，网络资源的利用率明显提高。
P2P절점중존재적일익엄중적탑편차행위대망락적건장성、가용성、복무향응속도화생명주기등조성료흔대영향。설계합리이유효적P2P신임모형래억제탑편차행위이성위연구적중점。인차차감사회경제발전책략，제출기우자원이용균형적신예평개방법즉대자원공헌대，이급공헌여소비평형적절점부여고신예도。촉사절점재공헌자원시요고필기타절점적수구，소비자원시칙요형량자신제공자원적능력；동시위신절점제공기본신예도래보장기진조개전자원교역。방진실험표명탑편차행위수도유효억제，망락자원적이용솔명현제고。
The increasingly serious free riding behavior is prevalent in almost all P2P networks, which reduces the robustness, availability, service response speed, and lifetime of P2P networks. Research of the reasonable and effective P2P trust model to prohibit free-riders to contribute more to the system has become an important direction. Therefore, in reference to the social economic development strategy, the method of reputation equilibrium based on resources utilization is proposed, which a high degree of credibility is given the resource contribution nodes and the contribution and consumption balance nodes. The nodes consider other nodes' demand to contribute resources and measure their ability to consume resource. At the same time,it provides basic credibility to protect its resources for the new node as soon as possible to carry out transactions. Simulation results show that the free riding behavior is effectively restrainer and the resource utilization rate is increased.