Received Dec 3, 2013 Revised Jan 7, 2014 Accepted Feb 3, 2014 The merits of 802.11s as the wireless mesh network standard provide a low cost and high independent scalability telemedicine infrastructure. However, challenges in degradation of performance as hops increase and the absent of Quality of Service (QoS) provision need to be resolved. The reliability and timely manner are the important f...

In Manet’s Dynamics and Robustness are the key features of the nodes and are governed by several routing protocols such as AODV, DSR and so on. However in the network the growing resource demand leads to resource scarcity. The Node Mobility often leads to the link breakages and high routing overhead decreasing the stability and reliability of the network connectivity. In this context, the paper...

Recent Advances in Wireless Mesh Networks (WMN) makes it one of the candidate communication technologies for Smart Grid Automatic Metering Infrastructure (AMI) because of its scalability and low cost of deployment. However, its capacity and multi-hoping performance in dynamic environment may not guarantee resilience and packet delivery reliability requirements of AMI. Theoretical and practical ...

This paper describes an improved integrated Object Oriented metrics for the high-level design quality assessment of Object Oriented codes. A single class based metrics (a Weighted Class Complexity, WCC) has been proposed that may be used for cumulative measure of all aspects of object oriented design (encapsulation, inheritance and polymorphism), and hence an indication of quality of class in t...

Broadcast presents a special challenge for Wireless Sensor Networks (WSNs). In situations such as time synchronization or routing path establishment, broadcasted messages must be securely transmitted to all nodes, but this process is subject to attack launched by adversaries. For example, an adversary may attempt to waste the battery power of intermediate nodes by forcing a compromised node to ...

Routing in Mobile Ad-hoc Networks has received a lot of attention due to the challenges posed by the self-organizing nature of the network, the dynamic topology, and the unreliable wireless medium. One of the most critical issues for MANETs is how to increase network lifetime, since nodes are typically battery powered. In this paper we consider the proactive MANET protocol OLSR to improve the n...

Evaluating the reliability of a wireless sensor network (WSN) deployment is a highly important task especially when the WSN is used for a critical Internet of Things (IoT) application. In this paper, we introduce a novel comprehensive reliability metric to evaluate the reliability of WSN deployments over their intended mission time. Unlike the existing studies on the topic, the proposed metric ...

Shutting down a link for the purposes of a scheduled routine maintenance does cause the forwarding path to change. If these changes are not done in a required order will cause not only transient micro loops but also an overload in some links. Currently, some ISP operators use a graceful link shutdown procedure by first setting up the Interior Gateway Protocol (IGP) link metric to MAX_METRIC − 1...

This dissertation endeavors to contribute enhancements in goodputs of the IEEE 802.11based Wireless Multi-hop Networks (WMhNs). By performing exhaustive simulations, for the deep analysis and detailed assessment of both reactive (AODV, DSR, DYMO) and proactive (DSDV, FSR, OLSR) protocols for varying mobilities, speeds, network loads and scalabilities, it is observed that a routing link metric i...