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In MANETs, real-time multimedia applications make Quality of Service (QoS) support, a crucial issue regarding terms of increased throughput, reduced jitter and available bandwidth. The highly dynamic topology of the network, large variation of received signal strength at nodes and frequently varying link characteristics make QoS provisioning, a challenging task. Most of the existing routing protocols...
Providing requisite Quality of service (QoS) guarantees in wireless multi-hop networks is much more challenging than in wired networks. This is mainly due to its dynamic topology, distributed nature, interference, multi-hop communication and contention for channel access. In particular, it is important for routing protocols to provide QoS guarantees by incorporating metrics like achievable throughput,...
Mobile Ad hoc network consists of a collection of mobile nodes capable of forming instantaneous network with dynamic topology. Each node simultaneously acts as both router and host. Nodes can leave or join the network freely. Destination Sequence Distance Vector (DSDV) is a modification of the conventional Bellman-Ford routing algorithm for ad hoc networks. Dynamic topology of ad hoc networks makes...
Collusion Attack is an attack against Mobile Ad Hoc Networks and is based on Optimised Link State Routing (OLSR) Protocol. In this attack, two attacking nodes collude to prevent routes to a target node from being established in the network. Packet Delivery Ratio (PDR) of nodes 2-hops away from the victim drops to 0%. Multi Point Relay (MPR) selection process in OLSR is exploited to achieve route denial...
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