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Routing in Wireless Mesh Algorithm is concerned with finding “good” source destination paths and has been an active research area since many years. Much of the work is focused on the improvement of global resources, or on the performance of individual transfers. Either case, the routing problem can be casted as a multi-objective with objectives such as load-balancing, end-to-end delay, and path capacity...
Much work has been done on routing in Ad-Hoc networks, but the proposed routing solutions only deal with the best effort data traffic. Connections with Quality of Service (QoS) requirements, such as voice channels with delay and bandwidth constraints, are not supported. The QoS routing has been receiving increasingly intensive attention, but searching for the shortest path with many metrics is an...
Cognitive radio network (CRN) is designed to improve the low resource utilization problem caused by the fixed spectrum allocation policy used today. In CRNs, secondary users (SUs) sense spectrum holes and adaptively use the frequency band. In this paper, we tackle the Quality of Service (QoS) routing problem in wireless ad hoc CRNs. We consider such factors as available time, frequency bands, transmission...
It is a challenge to thwart both the passive attacks and active attacks in mobile ad hoc networks for their unique characteristics. The improvement of security often sacrifices the delivery rate or other QoS. We propose secure multipath routing scheme based on modified secret sharing as an effective mechanism to protect data confidentiality and simultaneously enhance data delivery rate in mobile ad...
Traffic driven based load balancing routing scheme in CogMesh network is proposed. SMC (secondary mesh client) accessing to CMR (cognitive mesh router) using Ad Hoc way is considered in the paper. A novel routing metric was proposed to describe the load state of a path, which was suitable for traffic demand. Choosing a light-loaded route and a light-loaded link guarantees a lower end-to-end delay...
Quality of service support for MANETs is a challenging task due to dynamic topology and limited resources. The main purpose of QoS routing is to find a feasible path that has sufficient resources to satisfy the constraints. In this paper a novel QoS routing algorithm based on ant colony optimization is proposed. The proposed algorithm uses Ant-like agents to discover and maintain paths, that satisfy...
Supporting multimedia for Mobile ad hoc networks (MANETs) is an important issue. This paper presents two routing algorithms in MANETs inspired by the ant colony optimization routing algorithms. The first algorithm is a Hybrid Multi-Ant (HMAnt) routing algorithm. It is a hybrid since it combines reactive path establishment with proactive path maintenance. It supports multi-path while maintaining an...
In an ad hoc network, QoS support is one of the major concerns. Because of the constant changes of available link state and bandwidth information, the limited node power, and the dynamic network topology, it is difficult for routing algorithms to satisfy the QoS requirements of many applications. In recent study, we proposed CEQoS routing algorithm for ad hoc networks. Taking bandwidth as the QoS...
A principal factor in sensor network design is energy efficiency. In this work, we propose to extend the lifetime of sensor networks using appropriate choice of sensor node distribution. The key idea of our scheme is to deploy more nodes in areas of extensive energy usage. Using this scheme of sensor node distribution, we use probabilistic angular routing to route data packets from the sensor nodes...
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