A Novel Ripple-based Contezt-cognizant Service Discovery Method in Autonomous Decentralized Community System
Location Based Services (LBS) consider service provision on the basis of location but they dont take into consideration time aspect and users interests. Therefore, customization of services on the basis of correlated spatio-temporal (location specific, time bounded) situations, and users with common interests cant be satisfied through LBS. Community Time-distance-oriented Information Environment (CTIE) is proposed to enable provision of customized services to specific users in specific place at specific time. CTIE incorporates time-awareness and demand-oriented contexts to revamp one-dimensional LBS into three-dimensional Community Pervasive Services (CPS). In proposed Autonomous Decentralized Community System, the key requirement is to find the most appropriate service according to context of proximity,for example the nearest one from users current position with most reasonable price, in real-time considering dynamic situation (varying time-distance).Unlike conventional n-ring strategy, we present novel idea of autonomous expansion of search ring using snails pace advancement of request message proportional to time-distance at each link, followed by swift boundary confining mechanism to seek appropriate service provider. Simulation results verify the effectiveness of the proposed technique.
Khalid Mahmood Satoshi Niki Xiaodong Lu Kinji Mori
Department of Computer Science, Tokyo Institute of Technology 2-12-1 Ookayama Meguro, Tokyo, 152-8552, Japan
国际会议
11th IEEE High Assurance Systems Engineering Symposium(HASE 2008)(第十一届IEEE高可信系统工程国际研讨会)
南京
英文
405-413
2008-12-03（万方平台首次上网日期，不代表论文的发表时间）