As more and more real Wireless Sensor Network’s (WSN) applications are tested and deployed over the last decade, the research community of WSN realizes that several issues need to be revisited from practical angles, such as reliability and availability. Basically, wireless sensor networks suffer from resource limitations, high failure rates and faults caused by the defective nature of wireless ...

Mobile Ad hoc Network (MANET) is a collection of mobile nodes that can communicate with each other using multihop wireless links without requiring any fixed based-station infrastructure and centralized management. Each node in the network acts as both a host and a router. In such scenario, designing of an efficient, reliable and secure routing protocol has been a major challenging issue over th...

Due to the unique characteristic of Mobile Ad hoc Network (MANET) and lack of security in its routing protocol, MANET is vulnerable to various attacks such as Black hole. In this paper we study a Black hole attack on one of ad hoc routing protocol called AODV (Ad hoc On Demand Vector). There have been many works done to solve this problem but most of them introduced extra overheads. In this pap...

AODV is a kind of on-demand distance vector routing protocols, in the light of the characteristics of AODV (Ad hoc On Demand Distance Vector ), AODV was revised in the paper, and on the basis of it, a kind of multipath AODV reliable data transmission routing algorithm based on LQI (LBM_AODV) was put forward. The algorithm mainly revised AODV protocol from the link information extraction, RREQ a...

Wireless Mesh Networks (WMNs) can be the key technology for the future of wireless networks. However, WMNs implementation still has many issues to be resolved especially on finding the best path to forward information. According to many researches, one of the most important component in WMNs is the routing protocol and how to make it efficient in performing the requirements of WMNs. Directional...

Mobile Ad hoc Network (MANET) is a wireless network which has dynamic nature with infrastructure less without a central administration. In MANETs link failure occurs due to topological changes of mobile node which causes high data loss and delay, so the performance is enhanced by predicting the link break in prior. The most challenging fact in the routing process is affording the energy profici...

Underwater wireless sensor networks (UWSNs) are significantly different from terrestrial in the following aspects: low bandwidth, high latency, variable topology, limited battery, processing power and so on. These new features pose many challenges to design of self-organizing routing protocol for UWSNs. This paper focuses on application Ad Hoc On-demand Distance Vector (AODV) In order solve pro...

In mobile ad hoc networks, the absence ofinfrastructure and the consequent absence of authorizationfacilities impede the usual practice of establishing a practicalcriterion to distinguishing nodes as trusted and distrusted.Since all nodes in the MANETs would be used as router inmulti-hop applications, secure routing protocols have vital rulein the security of the network. So evaluating the perf...

This paper presents a new routing metric for mobile ad hoc networks. It considers both coverage area as well as link expiration information, which in turn requires position, speed and direction information of nodes in the network. With this new metric, a routing protocol obtains routes that last longer with as few hops as possible. The proposed routing metric is implemented with Ad Hoc On-Deman...