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Reliability support in a tactical area network is crucial since critical information is exchanged to achieve military missions. However, it is extremely challenging due to mobility, unstable channel condition, and possible jamming attack from an adversary. To increase reliability, we propose a new software layer, called thin layer, that controls diversity schemes located at various network layers,...
This paper focuses on congestion control but while previous works considered scalar sensor nodes which only report events in the size of a few bytes, we are addressing congestion control for information-intensive flows such as video flows for surveillance applications in pervasive wireless multimedia sensor networks. The proposed framework that we describe in this paper tries to put several mechanisms...
In wireless mesh networks (WMNs), the achievable performance of the nodes depends on the behavior of intermediate routers. Utilizing cognition in the network could result in higher adaptivity to satisfy the end-user requirements. In this paper, we propose a cognitive WMN that utilizes multiple gateways to serve a client through multi-path routing. The injected intellectuality in the network (cognitive...
We propose a quantitative model to evaluate survivability in large-scale Mobile Ad-hoc NETworks (MANETs). We present modeling for survivability regarding various types of faults and connection states for mobile terminals through continuous time Markov chain. We evaluate the survivability of segment-by-segment routing and multipath routing, introduce reliability theory to perform analysis and quantitative...
Multipath routing provides more advantages for mobile ad hoc networks. We address the issue of enhancing route survivability and fault tolerance for packet reliable transmission, and propose the k-redundant multipath model which constructs multiple disjoint primary routes from the source to the destination and meanwhile provides the route redundancy among primary routes. We present the k-RMR protocol...
In this paper, we propose a reliable and energy-efficient routing algorithm for underwater wireless sensor networks (UWSNs). We first use a sphere energy depletion model to analyze the energy consumption of nodes in UWSNs. We then extend the model by considering the node mobility in UWSNs. Our analysis is in accordance with the common view that although water flows might cause the underwater environment...
In this paper we investigate the reliability of multipath routing using multiple gateways in a wireless mesh network. We propose a greedy gateway placement algorithm that tries to minimise the number of gateways needed when a maximum distance between each node and a predefine number of gateways is guaranteed. Simulations results show that our intelligent gateways placement can be employed to complement...
A reliable routing algorithm is proposed based on multi-path. The algorithm constructs multi-path to provide reliability based on B-spline curve. Simulation results show that the algorithm has low overhead and can provide the reliability to some extent
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