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Modified optimized link state routing (M-OLSR) has been developed for adaptability in wireless mesh networking (WMNs) scenarios and exhibits a much better scalability of traffic load and mobility in sparse and dense network. The protocol uses some refresh timers for periodic updates of link information and for subsequent topology maintenance. In this paper, we investigate the impact of configuring...
Dynamic topology and limited bandwidth of mobile ad hoc networks (MANETs) make end-to-end QoS support an inherently complex and difficult task. Most of the current QoS routing protocols propose routing based on two QoS metrics. This paper introduces a QoS aware on demand routing protocol that uses signal stability as the routing criteria along with other QoS metrics. The proposed QoS Aware Stable...
Due to bandwidth constraint and highly dynamic topology of mobile ad hoc networks, supporting quality of service (QoS) is a challenging task. In this paper, we present two efficient route recovery mechanisms for QoS routing based on an extension of the AODV (ad hoc on demand distance vector) routing protocol that deals with delay and bandwidth constraints. One is based on route maintenance by intermediate...
Wireless adhoc networks consist of nodes interconnected by wireless multi-hop communication paths. Such networks exhibit simulated mobility, where the topological changes are caused by nodes coming up or going down. These networks also exhibit complex overlapping of flow paths. This in turn leads to severe contention in between flows as well as between the sub-flows of the same flow. In this paper,...
Due to resource constraints and dynamic topology of mobile ad hoc networks (MANETs), supporting quality of service (QoS) in MANETs is a challenging task. Although lots of research have been done on supporting QoS in the Internet and other networks, they are not suitable for the MANET environment. While traditional protocol layering is an important abstraction to reduce complexity of network design...
The absence of guaranteed static reference nodes in a dynamic MANET environment makes it almost impossible to control the propagation of a broadcast packet in a controlled fashion. Therefore, to offset the well documented inefficiencies of a simple flooding mechanism, we propose optimal reliability broadcast mechanism (ORBM). ORBM is a received signal strength based scheme to control temporal congestion...
Reducing packet loss and delay during handovers is of major importance in mobile networks. However, various handover proposals reported at the Internet engineering task force (IETF) have failed to minimize both these factors. In this document, we propose a novel context aware seamless handover scheme for local mobility in next generation IP networks. The proposed scheme considers the bandwidth requirements...
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