普适环境下基于广播信息搭载的服务发现协议  

PAISDP: Piggybacking advertisement information based service discovery protocol in pervasive computing environments

作　　者：马千里[1,2] 廖明宏[1] 姜守旭[1] 高振国[3] 

机构地区：[1]哈尔滨工业大学计算机科学与技术学院,哈尔滨150001 [2]山西大学计算机与信息技术学院,太原030006 [3]哈尔滨工程大学自动化学院,哈尔滨150001

出　　处：《吉林大学学报（工学版）》2010年第4期1065-1070,共6页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(60703090;60973124)

摘　　要：提出了普适环境下一个新的服务发现协议:PAISDP(Piggybacking advertisement infor-mation based service discovery protocol),即在服务发现的回复包中携带回复节点的部分广播信息,使得广播信息能随着回复包在回复路径上传播,扩大了广播信息的传送范围。理论分析和仿真实验表明:PAISDP减少了服务请求包数量,降低了服务响应时间,提高了服务发现效率。Service discovery is the technology of finding needed services in network,which is a key aspect in pervasive computing environments. This paper proposes a novel service discovery protocol,which is named Piggybacking advertisement information based service discovery protocol（ PAISDP） . In PAISDP,by means of piggybacking it in the node’s service reply packets,part of advertisement information of a reply node can be propagated along the reply path,which expands its transmission area. Theoretical analysis and Glomosim simulation results demonstrate that PAISDP can reduce the number of service request packets,save the response time,and improve the efficiency of service discovery.

关 键 词：计算机应用 普适计算 无线自组网 服务发现 广播信息 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]