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Mobile Ad-hoc Network is one of the popular technologies among the various wireless technologies. The MANET is an ad-hoc technology and inherits the properties of mobility, wireless connectivity and independence. In one side it demonstrates the advantage over applications on the other side that is complicated to manage. Therefore the routing protocols are an essential component of the entire network...
In this paper, an efficient routing protocol for patient monitoring system in rural areas was proposed using wireless sensor network (WSN) so that the patients can be treated within less time. In this system, a village with GSM network is considered and the people in that village are continuously monitored using AMON sensor, an advanced medical monitoring and alert system. All the AMON's work in ADHOC...
MANET is a self-sorting out, decentralized, framework less, multi hop, remote system of cell phones. routing protocols assume a crucial part in transmission of information over the network. Streaming video is content sent in packed frame over the Internet and showed by the viewer continuously. Mobile Ad hoc Networks are considered for some applications. Routing protocols are the most imperative component...
As Internet of Things (IoT) and smart devices are becoming widespread, expectations for large-scale ad-hoc networks are increasing. To accommodate a large number of nodes, ad-hoc networks should use multiple channels. Thus, dynamic channel switching methods in multi-channel ad-hoc networks have been investigated to control congestion of the channel. However, such channel switching has a considerable...
In wireless multihop networks, a sequence of data messages are transmitted along a predetermined wireless multihop transmission route. Collisions among wireless transmission signals from the intermediate wireless nodes cause reduction of the end-to-end data message throughput. Hence, avoidance and/or reduction of collisions between 2-hop neighbor intermediate nodes due to the hidden terminal problem...
This paper analyzes the significant low performance of Backpressure routing protocols when combined with TCP-based flows. The issue is due to a mismatch between i) the congestion control mechanism of TCP and ii) the multi-path nature based on queue backlogs differentiation of the Backpressure algorithms. We aim to address this issue by introducing and evaluating two novel schemes within the Lyapunov...
The mobile devices are becoming the important part in our day to day life. These are now one of the basic needs of our daily life. These devices are used to share the data of interest with one another. Data may be in the form of picture or video clip , news etc. But sometimes , data cannot reach to the user who is interested ,because of delaying of messages. Sometimes nodes do not want to loose their...
A data gathering protocol for multi-channel wireless sensor network is proposed in this paper. The sensor field is logically divided into some finite number of grids. Each grid is managed by a potential node called as grid manager. Each grid manager is also responsible for communicating aggregated data generated inside the respective grid to the base station either directly or via multi-hop communication...
The impact of various mobility models like flag mobility and random waypoint mobility models on QoS issues in MANET and WSN are studied. The performance of the MANET and WSN are evaluated for the mobility models using QualNet 6.1 simulator. Performance is concerned with the Average End to End delay, Jitter, Throughput and also total messages received. which are studied for the various mobility models,...
Delay Tolerant Networks (DTNs) are characterized by node mobility and partitioned network topology, extremely long delivery latency, etc. Consequently, the traditional ad-hoc routing algorithms cannot work well in DTNs. In order to provide effective communication services in DTNs, in this paper, we propose an adaptive routing based on Node Performance and Encountering Probability (NPEP). NPEP chronologically...
There has been rapid growth in the area of wireless communication by Wireless Mesh Networks (WMNs) where routing metric is the key metric to find the optimized route in WMNs. For obtaining optimal performance, integrating multiple performance metrics into a routing protocol is effective, as single metric will not be able to satisfy the thorough requirement of WMNs. This paper has proposed a new routing...
MANETs is collection of wireless network establishing a network in which nodes communicate with each other by network systems such as the Internet. MANETs routing protocols are characterized into two types, for example, table-driven and on-request or demand. In this network node performed as a function of routers which discovers and maintain the path to other node. In Adhoc network nodes are easily...
Due to their intrinsic characteristics, Ad Hoc mobile networks could be subjects to disturbances or node break-downs. The latter are worsened by the nodes relay and mobility features. A more sophisticated Multihoming integration to MANET networks necessarily increases its robustness: in other words, it improves its performances. That is why we suggest in this article a new extension of the Stream...
Mobile ad hoc Network (MANET) consists of autonomous mobile nodes without any centralized control. These mobile nodes move arbitrarily within the self-configurable MANET environment. Each of these mobile nodes can act as router while receiving and forwarding information. Secure routing is an important issue in MANET as mobile nodes are prone to attacks from malicious nodes and the overall performance...
Vehicular ad hoc network (VANET) is an emerging network technology with the goal of providing public safety, traffic coordination and infotainment for the comfort of passengers in moving vehicles. However, it faces the challenge of not providing the expected quality of service (QoS) when streaming videos online. This challenge emanate from the variable topology infrastructure caused by intrinsic high...
In wireless multihop networks, a sequence of data messages are transmitted along a predetermined wireless multihop transmission route. Collisions among wireless transmission signals from the intermediate wireless nodes cause reduction of the end-to-end data message throughput. Hence, avoidance and/or reduction of collisions between 2-hop neighbor intermediate nodes due to the hidden terminal problem...
As the practical propagation environment suffers from various fading, investigation of a suitable routing protocol for this type of environment is need of the day. Many routing protocols have been evaluated for idle conditions but none of them have taken actual physical environments such as fading, etc. into consideration. In this paper, that particular Issue has been addressed. Three most popularly...
Lately the concepts of smart cities, smart highways and automated vehicles have been rigorously promoted in literature and it depends on the maturity of technology based on VANET (Vehicular Adhoc Network). Even though VANET can be considered as an enabling networking technology to realize smart capabilities in congested city scenarios. However there are many challenges linked with the network and...
In this modern era the road accidents, traffic are increasing day by day. A smart technique is required to tackle these problems. So for wireless communication, Vehicular Adhoc Network (VANET) is highly influenced research area that has been developing very fast. Presently this area is not as mature as certain issues need to be addressed. Considering Routing Protocols as an important area in VANET,...
In this paper, we address the problem of routing disruption attacks in Cognitive Radio Networks (CRNs). In routing disruption attacks, the malicious node intentionally drop data packets to consume more network resources or degrade routing performance. We propose a trust management model to mitigate such attacks in CRNs. Through monitoring forwarding behaviors of secondary users (SUs), trusts of SUs...
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