How to shorten time delay and enhance delivery ratio in sparse settings is still an open issue
in the study of opportunistic networks. Most proposals are trying to deal with this issue by …

Existing opportunity networks can hardly satisfy the requirements of disaster scenarios for
low-latency messaging. Due to this reason, we develop a new opportunistic network …

Due to the type of applications, wireless sensor nodes must always be inexpensive and
small. Hence, the presence of constraints such as the limitation of energy resource is …

In delay tolerant WSNs mobile ferries can be used for collecting data from sensor nodes,
especially in large-scale networks. Unlike data collection via multi-hop forwarding among …

Due to the type of applications, wireless sensor nodes must always be energy efficient and
small. Hence, the presence of constraints such as the limitation of energy resource is …

Message ferry is to provide communication service for mobile nodes in Delay-Tolerant
Networks (DTNs). Various routing schemes for message ferries have been proposed so far …

Random walks play an important role in computer science, spreading a wide range of topics
in theory and practice, including networking, distributed systems, and optimization. Levy …

Recently, mobile agents use in wireless sensor networks (WSNs) for data aggregation has
acquired considerable attention. In client-server, sensor nodes (SNs) collect data and …

In opportunistic network with node clusters, it is usually necessary to set up ferry nodes to
connect each cluster to achieve the overall connectivity of the network, and the movement …

摘要为了减少能量空洞和延长网络生命周期, 在无线传感网中采用移动Sink
的方式收集节点采集的数据是解决能量效率问题的有效措施. 采集路径的规划问题类似于旅行商 …