Sensor Networks have applications in diverse fields. They can be deployed for habitat modeling, temperature monitoring and industrial sensing. They also find applications in battlefield awareness and emergency (first) response situations. While unique addressing is not a requirement of many data collecting applications of wireless sensor networks, it is vital for the success of applications suc...

WSNs (Wireless Sensor Networks) have the characteristics of limited communication radius and easy invalidation. Aimed at these characteristics, based on complex networks theory, a topology evolution TEBAS (Topology Evolution of Wireless Sensor Networks Based on adaptive scale-free networks), which introduces fitness and local world and more suitable for WSNs than ERW (Topology Evolution by Rand...

Sybil attacks pose a serious threat for Wireless Sensor Networks (WSN) security. They can create problems in routing, voting schemes, decision making, distributed storage and sensor re-programming. In a Sybil attack, the attacker masquerades as multiple sensor identities that are actually controlled by one or a few existing attacker nodes. Sybil identities are fabricated out of stolen keys, obt...

Wireless sensor networks (WSNs) carry noteworthy pros over traditional communication. Though, unkind and composite environments fake great challenges in the reliability of WSN communications. It is more vital to develop a reliable unipath dynamic source routing protocol (RDSRP)l for WSN to provide better quality of service (QoS) in energy harvesting wireless sensor networks (EH-WSN). This paper...

Wireless sensor networks (WSNs), consisting of autonomous sensor nodes, have emerged as ubiquitous networks which span diverse application domains (e.g., health care, logistics, defense) each with varying application requirements (e.g., lifetime, throughput). Sensor nodes possess tunable parameters (e.g., processor voltage, sensing frequency), which enable platform specialization for particular...

Extensive researches on Wireless Sensor Networks (WSNs) have been performed and many techniques have been developed for the data link (MAC) layer. Most of them assume single-channel MAC protocols. In the usual dense deployment of the sensor networks, single-channel MAC protocols may be deficient because of radio collisions and limited bandwidth. Hence, using multiple channels can significantly ...

Extensive researches on Wireless Sensor Networks (WSNs) have been performed and many techniques have been developed for the data link (MAC) layer. Most of them assume single-channel MAC protocols. In the usual dense deployment of the sensor networks, single-channel MAC protocols may be deficient because of radio collisions and limited bandwidth. Hence, using multiple channels can significantly ...

Active research has recently been conducted on large scale wireless sensor networks, especially network management and maintenance, but the technique for managing application errors on MMU-less sensor node devices has not been seriously considered. This paper presents a resilient operating system mechanism for wireless sensor networks. The proposed mechanism separates the kernel from the user e...

In Wireless Sensor Networks (WSNs), sensor nodes have limited battery power, so energy consumption is essential issue. Every sensor node can obtain its location information from GPS or other positioning system and send data to sink at any time. In this paper, comparison of the dynamic network topologies in Wireless Sensor Networks has been done. The characteristic of this is to divide WSN into ...