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Many common DTN routing protocols are replication-based, which have relatively good performance in terms of message delivery ratio but high overhead, and leave the issue of garbage collection open. In this paper, we propose Named Data Distance Routing (NDDR), a named data based DTN routing approach which makes routing decisions for named data based on topological distance information. This helps to...
The rapid development in communication approach has brought out new mode of communication. Among the recent developments, adhoc network has emerged as new mode of data communication. The objective of link reliability is a major concern in such network. In this paper, a new approach to route discovery based on network power and operational characteristic is proposed. The approach suggested, results...
Wireless healthcare monitoring sensor networks are multi-hop Zigbee-based systems which usually use broadcast or multicast to reliably deliver vital diagnostics information or event detection to the sink. However, such schemes typically lead to high network traffic and large path search delay. This paper presents an efficient, adaptive, distributed routing mechanism, called anycast Q-routing to route...
One of the promising applications of wireless sensor networks (WSNs) is monitoring of the human body for health concerns. For this purpose, a large number of small sensors are implanted in the human body. These sensors altogether provide a network of wireless sensors (WBANs) and monitor the vital signs and signals of the human body; these sensors will then send this information to the doctor. The...
In Vehicular Ad Hoc Networks (VANET), trust establishment among vehicles is important to secure applications' integrity and reliability. In general, trust levels can be evaluated by monitoring the behavior of neighboring nodes and their generated messages based on events. However, obstacles can create a case of None Line of Sight (NLOS), which will interrupt direct communication among vehicles and...
Multi-hop wireless ad hoc networks suffer from temporary link error due to fading. In order to improve packet transmission reliability and achieve efficient transmission in fading environment, this paper proposes an integrated dynamic multi-hopping scheme based on a cross-layer approach and cognitive behavior of local nodes. The scheme provides two important functions, temporary bypassing and dynamic...
Considerable advancements in the technology of wireless sensor networks (WSNs) are taking place due to smaller, and more efficient electronic devices which are capable of increased processing power, and communication capabilities. In addition, the cost of such devices is constantly decreasing, which makes it possible to employ large quantities of networked sensors in numerous commercial, environmental,...
Low-cost wireless routers are changing the way people connect to the Internet. They are also very cheap, albeit quite limited, Linux boxes. These attributes make them ideal candidates for wireless mesh routers. This paper presents a minimally invasive mechanism for redundant multipath routing in kernel-space to achieve high reliability with high throughput in a mesh network. This service is essential...
Expected growth in use and implementation of wireless sensor networks (WSNs) in different environments and for different applications creates new security challenges. In WSNs, a malicious node may initiate incorrect path information, change the contents of data packets, and even hijack one or more genuine network nodes. As the network reliability completely depends on individual nodespsila presence...
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