Future wireless network are envisioned to be pervasive and ubiquitow. The integration of wireless sensor networks with wireless local area network and the Internet is an important issue of future wireless networks. This paper has identified three challenges in the integration of wireless sensor network with wireless local area networks and the Internet: (i) reliable communication issue among se...

The verification of aerospace structures, including full-scale fatigue and static test programs, is essential for structure strength design and evaluation. However, the current overall ground strength testing systems employ a large number of wires for communication among sensors and data acquisition facilities. The centralized data processing makes test programs lack efficiency and intelligence...

This study addresses the optimization of node redeployment coverage in underwater wireless sensor networks. Given that nodes could easily become invalid under a poor environment and the large scale of underwater wireless sensor networks, an underwater sensor network redeployment algorithm was developed based on wolf search. This study is to apply the wolf search algorithm combined with crowded ...

This paper evaluates the performance of two prominent on-demand routing protocols, which are Dynamic Source Routing (DSR) and Ad Hoc On-Demand Distance Vector Routing (AODV) for wireless sensor networks. Results obtained from simulations demonstrates that even though DSR and AODV share a similar on-demand behavior, the differences in the protocol mechanics can lead to significant performance di...

Constant development and improvement in wireless sensor network (WSN) technology has supplied some new opportunities of small land minor-cost sensor nodes with capacity of sensing various permuted physical and environmental conditions, data processing, and wireless communication. The outcome of diversity of sensing effectiveness is in the excess of application areas. But to an extent, the earli...

In this paper we consider the problem of identifying faulty (crashed) nodes in a wireless sensor network. This problem is of fundamental importance in those applicative scenarios of wireless sensor networks in which battery replacement is feasible. The diagnostic information gathered by operational sensors can be used by an external operator for the sake of network reconfiguration and/or repair...

designing wireless sensor networks should meet appropriate parameters such as quality of service (qos) defined by different users. the variable physical conditions of the environment, processing and transmission power limitations and limited communication capabilities are the most important obstacles that influence qos parameters such as throughput, delay, reliability and network lifetime. the ...

Wireless sensor networks consist of small nodes with sensing, computation, and wireless communications capabilities.Routing as one key technologies of wireless sensor network has now become a hot research because the applications of WSN is everywhere, it is impossible that there is a routing protocol suitable for all applications. Routing protocols in WSNs are also application specific which ha...

a wireless sensor network (wsn) is a wireless decentralized structure network consists of many nodes. nodes can be fixed or mobile. wsn applications typically observe some physical phenomenon through sampling of the environment so determine the location of events is an important issue in wsn. wireless localization used to determine the position of nodes. the precise localization in wsns is a co...