Various advancement in wireless communication and electronics technologies have enabled the development of low cost, low-power, multifunctional sensor nodes that are small in size and are able to sense, process data and communicate with each other in short distances wirelessly. A continuous growth in both applications and interests of wireless sensor network have witnessed recent years. A brief...

The significant advances of hardware manufacturing technology and the development of efficient software algorithms make technically and economically feasible a network composed of numerous, small, low-cost sensors using wireless communications, that is, a wireless sensor network (WSN). Security is becoming a major concern for WSN protocol designers because of the wide security-critical applicat...

Recent breakthroughs in micro sensor technologies allow us to engineer compact, battery powered, wireless communication enabled and cheap sensing devices, sensor nodes. Combining those cheap sensor nodes into networks allows us to create Wireless Sensor Networks (WSN). Figure.1 shows the general architecture of a typical WSN. Sensor nodes are usually low power, with limited computational and st...

In recent years, wireless sensor network (WSN) is finding its applications in agriculture, military, health care, environmental monitoring and industries. In wireless sensor networking energy resource of battery is very important and it has to be utilized in an efficient way. Energy resource of WSNs cannot be recharged or replaced in most of the time. So, the lifetime of the WSN is an important...

detecting anomalies is an important challenge for intrusion detection and fault diagnosis in wireless sensor networks (wsns). to address the problem of outlier detection in wireless sensor networks, in this paper we present a pca-based centralized approach and a dpca-based distributed energy-efficient approach for detecting outliers in sensed data in a wsn. the outliers in sensed data can be ca...

Underwater Wireless Sensor Networks (UWSN) share the common challenges of terrestrial Wireless Sensor Network (WSN), however they are significantly different from terrestrial WSN. Mainly, because acoustic wireless communication is the main physical layer technology in UWSN. Acoustic communication offers longer range, but has limitations due to low speed of sound, high error probability, limited...

An energy efficient routing is a significant issue in the designing of Wireless Sensor Network (WSN) protocols. This paper presents a comprehensive survey on energy efficient routing protocols in WSNs. Keywords— Energy Efficiency, Network Lifetime, Routing Protocols, Wireless Sensor Network (WSN), Ant Colony

Energy-efficient Self-monitoring of Wireless Sensor Network (Azad Ali) ................... 2 Is Reliability a Concern for Mobile WSNs (Faisal Karim) ............................................ 2 Attributes and Metrics defining Quality of Information in Wireless Sensor Networks (Vinay Sachidananda).....................................................................................................

A wireless sensor network (WSN) is one of the common communication networks that have been used nowadays. The main idea of this paper is to solve the coverage problem in Wireless Sensor Network (WSN) by increasing sensor nodes coverage percentages [1]. To provide proper coverage of their random deployment regions, wireless sensor networks (WSN) should employ some smart nodes. This work is focus...

Sensor nodes in Wireless Sensor Network (WSN) are responsible for sensing the environment and propagating the collected data in the network. The communication between sensor nodes may fail due to different factors, such as temporal variations of the wireless channel, interference, hardware failures, and energy depletion. Hence, robust design of WSNs in order to be resilient to such failures is ...