A novel routing protocol for content-based publish/subscribe model in mobile sensor networks
A novel routing protocol for content-based publish/subscribe model in mobile sensor networks
复制标题
移动传感器网络中基于内容的发布/订阅模型的新型路由协议
DOI：
10.1177/1550147719879046
复制
发表时间：
2019-09-01
影响因子：
2.3
通讯作者：
Michael，Omari
中科院分区：
文献类型：
--
作者：
Lin，Lin;Chen，Jinfu;Michael，Omari
在移动传感器网络中，汇聚节点在网络中注册自己的事件，当传感器节点发现汇聚节点感兴趣的事件时，它会发送响应消息。应用场景中通信过程的数据流量具有突发的特点，有时会出现网络拥塞的情况。因此，在设计数据路由协议时，需要考虑如何减少网络中的通信开销，提高查询的成功率。为了解决这个问题，本文提出了一种适用于移动传感器网络的基于内容的发布/订阅的路由协议。基于内容的发布/订阅路由协议的核心思想是将网络中的所有传感器节点划分为若干个簇，传感事件的传输基于这些簇。该协议由事件发布、订阅、匹配和取消订阅组成。查询者向网络发送订阅信息，这些信息保存在簇头网络中。发布的事件也被传输到簇头网络并进行匹配计算。如果匹配成功，事件就会发送给订阅者，从而提高查询的成功率。仿真结果表明，与现有方法相比，基于内容的发布/订阅路由协议消耗更低的匹配事件传输能量，获得更高的成功率。在大量发布事件的情况下，基于内容的发布/订阅协议的路由协议的网络生命周期可提高28%~54%，并且订阅成功率保持在80%以上。
In the mobile sensor networks, the sink node registers its own events in the network, and when the sensor node finds an event of interest to the sink node, it sends a response message. The data traffic of the communication process in the application scenario has a bursting feature, and sometimes network congestion occurs. Therefore, when designing the data routing protocol, it is necessary to consider how to reduce the communication overhead in the network and improve the success rate of the query. To address this issue, this article proposes a routing protocol for content-based publish/subscribe, which is applicable in mobile sensor networks. The core idea of routing protocol for content-based publish/subscribe is that all sensor nodes in the network are divided into several clusters, and the transmission of sensing events is based on these clusters. The protocol consists of event publishing, subscription, matching, and unsubscribe. The inquirers send subscription information to the network, which are saved in the cluster head network. Published events are also transmitted to the cluster head network and the matching computation is performed. If the match is successful, events will be sent to subscribers, thus improving the success rate of queries. The simulations show that compared with existing methods, routing protocol for content-based publish/subscribe consumes lower matching events transmission energy to obtain a higher success rate. In the case of a large number of published events, the network lifetime of the routing protocol for content-based publish/subscribe protocol can be increased by 28%–54%, and the subscription success rate remains above 80%.