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论文类型：期刊论文

发表时间：2014-10-01

发表刊物：Dongbei Daxue Xuebao/Journal of Northeastern University

收录刊物：EI、PKU、ISTIC、Scopus

卷号：35

页面范围：225-230 and 237

ISSN号：10053026

摘要：In VANET, limited resources, high mobility, intermittent connection and selfish behaviors will not only reduce the successful search rate and retrieve the file rate, but also increase the delay of transmission, resulting in the failure of cooperative sharing of multimedia and affects the vehicle user's experience seriously. So in order to ensure the cooperative sharing of multimedia and improve satisfaction of vehicle users, a multimedia cooperative sharing mechanism based on P2P-BT(PB-MCSM) was proposed. According to characteristics and movement trajectory of kinds of vehicles in VANET, the hierarchical architecture of VANET was established. Then multimedia file query mechanism and retrieval mechanism based on game of PB-MCSM were proposed respectively. Finally, simulation results showed that the successful search rate and retrieve file rate of multimedia files were increased using the P2P-MCSM, and the delay of transmission was reduced. What's more, satisfaction of vehicle users was improved and the cooperative sharing of multimedia in VANET was ensured. ?, 2014, Northeastern University. All right reserved.