A location-based service advertisement algorithm for pervasive service discovery in wireless mobile networks
A location-based service advertisement algorithm for pervasive service discovery in wireless mobile networks
复制标题
无线移动网络中普遍服务发现的基于位置的服务广告算法
DOI：
10.1002/wcm.635
复制
发表时间：
2008
影响因子：
--
通讯作者：
Yang K
中科院分区：
文献类型：
--
作者：
Yang K
在移动的无线网络中运行的普适服务的实际成功很大程度上依赖于其提供自适应和成本效益服务的灵活性。服务发现是实现这一目标的重要机制。作为对我们先前工作的服务发现，即基于模型的服务发现（MBSD）的增强，本文提出了一个基于位置的服务广告（SA）算法命名为MBSD-sa。MBSD-sa强调服务位置对服务可用性的重要性，并将服务位置信息与服务语义信息一起集成到用于广告的服务信息中。MBSD-sa利用预测来估计服务位置，以减少SA消息（SAM）的数量。MBSD-sa采用两种互补类型的SA机制（类型1和2），以在SAM开销和服务信息的准确性之间取得平衡。MBSD-sa的性能进行了分析，数值模拟和使用。版权所有© 2008约翰威利父子有限公司。
The practical success of pervasive services running in mobile wireless networks relies largely on its flexibility in providing adaptive and cost‐effective services. Service discovery is an essential mechanism to achieve this goal. As an enhancement to our previous work for service discovery, that is, model‐based service discovery (MBSD), this paper proposes a location‐based service advertisement (SA) algorithm named as MBSD‐sa. MBSD‐sa advocates the importance of service location to the service availability and integrates the service location information together with the service semantic information into service information for advertisement. MBSD‐sa utilizes prediction to estimate the service location so as to reduce the number of SA messages (SAMs). Two complementary types of SA mechanisms (Types 1 and 2) are employed by MBSD‐sa to strike the balance between the SAM overhead and the accuracy of service information. The performance of MBSD‐sa is analyzed both numerically and using simulations. Copyright © 2008 John Wiley & Sons, Ltd.