A new node selection algorithm is proposed to solve the node selection problem for peer-to-peer network in 3D virtual scene. First of all, according to the restrictions of the user’s viewing field, the data availability cardinality of the candidate node is larger by setting the priority for the area of interest. Then calculate the effective value through the two performance of node. Finally, us...

It is very difficult and expensive to replace sensor node battery in wireless sensor network in many critical conditions such as bridge supervising, resource exploration in hostile locations, and wildlife safety, etc. The natural choice in such situations is to maximize network lifetime. One such approach is to divide the sensing area of wireless sensor network into clusters to achieve high ene...

Mobile underwater sensor networks are usually featured with three-dimensional topology, high node mobility and long propagation delays. For such networks, geographic routing has been shown to be very suitable. However, routing voids pose great challenges on the greedy policy used in most geographic routing protocols. The problem is more severe for underwater sensor networks because of node mobi...

Mobile underwater sensor networks are featured with three-dimensional topology, high node mobility and long propagation delay. Geographic routing has been shown to be very suitable for such networks. However, routing voids pose great challenges on the greedy policy used in most geographic routing protocols. This is especially true for the underwater sensor networks because of node mobility and ...

With the advent of the Internet of Underwater Things, smart things are deployed in the ocean space and establish underwater wireless sensor networks for the monitoring of vast and dynamic underwater environments. When events are found to have possibly occurred, accurate event coverage should be detected, and potential event sources should be determined for the enactment of prompt and proper res...

Underwater Acoustic Wireless Sensor Network (UAWSN) uses acoustic signals to transmit data. Acoustic signals in underwater environment have high bit error rate, long propagation delay and limited bandwidth. Another constraint in UWASN is energy. Due to these constraints, design of energy and bandwidth efficient and propagation delay aware MAC protocol is a great challenge in UWASN. Underwater s...

Designing an efficient deployment method to guarantee optimal monitoring quality is one of the key topics in underwater sensor networks. At present, a realistic approach of deployment involves adjusting the depths of nodes in water. One of the typical algorithms used in such process is the self-deployment depth adjustment algorithm (SDDA). This algorithm mainly focuses on maximizing network cov...

One of the main difficulties when modeling Underwater Wireless Sensor Network (UWSN) has to do with the environment characteristics and the acoustic signal typically used. As stated in other works, the accuracy of the acoustic propagation model and the network scenario conditions are critical to obtain reliable results. In this work we proposed a simulator framework for UWSN modeling. For that ...

Underwater sensor network has attracted significant attention recently [1] [2]. On the one hand, it enables a wide range of aquatic applications. On the other hand, harsh underwater environments pose grand challenges to underwater communication and networking. Firstly, acoustic channels have high error probability, long propagation delay and limited bandwidth. Secondly, underwater sensor nodes ...