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Intelligent Transport Systems (ITS) and the open-ended research in the field of vehicular communication attempts to deal with the road traffic problems. In Vehicular Ad-Hoc Networks (VANETs), vehicles are moving faster in comparison with Mobile Ad-hoc Networks (MANETs). Furthermore, in urban VANETs, vehicles are constrained by the layout of the roads and buildings, which causes shadowing effects....
Through real-world measurements we evaluate the impact of multihop-aware cooperative relaying on end-to-end route performance in wireless multi-hop networks. In an experiment with 50 devices in an industrial environment cooperative relaying increases the end-to-end transmission reliability for multi-hop links to nearly 100% while reducing the average packet delay. We suggest how to include relay selection...
The growth in wireless devices and multimedia applications has led to increase in spectrum usage in recent past. One of the credible solutions to overcome this shortcoming is by the usage of Cognitive Radios (CR). The Cognitive Radio has spectrum sensing capabilities and thus can improve spectrum usage. The ad hoc network employing CR are termed as Cognitive Radio Ad Hoc Networks (CRAHN). To establish...
AODV protocol is a comparatively more popular on demand routing protocol in mobile ad hoc networks. However, reliability in terms of data communication is not much satisfactory in traditional AODV. This paper presents an AODV with end to end reliability (AODV-EER). The main idea of proposed modification in AODV is to find the route with lowest drop rate from source to destination. We also propose...
Disasters around the globe have caused a tremendous loss of lives, severe damage to the property and the environment as well as an incredible shock to the survivors. Robust communication during the emergency rescue operations are of paramount of importance. In this article, we proposed flexible network architecture for Emergency situation using Wireless Mesh Network (WMN). This paper proposes a Report...
Ad hoc wireless networks were considered to be the most suitable wireless communication system in order to support various applications in mobility environments. When providing real-time applications in ad hoc wireless networks, there are some requirements: i) the design of routing algorithm with packet delivery reliability while maintaining the established route for an arbitrary length of time (i...
The design of a routing protocol for the provision of quality of service (QoS) in a mobile ad hoc network is a challenging task. In this paper, we propose a QoS routing protocol based on path durability and end-to-end delays. Our protocol tries to identify multiple node-disjoint paths between a given source and a destination. The path selection mechanism employed in our protocol selects paths that...
Wireless sensor networks (WSNs) are becoming a viable tool for many monitoring applications. In many cases these applications may be of critical nature where the transmitting of vital information from sensors to base station or sink is crucial, and data loss cannot be tolerated. As a result, the information transmission of wireless sensor networks has various different requirements in performance,...
An ad hoc network is a collection of wireless mobile nodes without the support of a stationary infrastructure. In ad hoc networks, each node acts as a router to support multiple hops to overcome limited range of packet radios. While a variety of routing protocols have been developed recently, a class of routing schemes called on-demand protocols have attracted a lot of attentions due to their low...
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