Instant messaging amp; presence management in mobile adhoc networks

Network based congestion avoidance which involves managing the queues in the network devices is an integral part of any network. Most of the mobile networks use Drop tail queue management where packets are dropped on queue overflow which is global…

Mobile adhoc networks are characterized by low-bandwidth, lossy links and by constant topology change. Traditional network management techniques, which were designed for static wired networks, do not perform well in such environments their rigid…

With the limited resource constraint the data availability in Mobile Adhoc NETworks (MANETs) is low. Node mobility caused the frequent network partition. Data replication significantly improves the data accessibility. In this paper we proposed a new…

The characteristics of mobile adhoc network (MANET), has made the design of efficient routing protocols a critical research challenge. Use of location information in routing is often proposed as a means to achieve scalability. The major issue in…

In mobile adhoc network, nodes of position change due to dynamic nature. There should be a provision to monitor behavior and position of the on the regular basis. In this paper, importance of management schemes in adhoc networks is studied. Further,…

This paper presents a hierarchical QoS multicast routing protocol (HQMRP) for mobile ad-hoc networks. It can provide QoS-sensitive routes in a scalable and flexible way, in the network environment with mobility. In the proposed HQMRP scheme, each…

Authentication and trust management in an adhoc network is a challenging task. Cryptography and other hard approaches do not provide a quantitative measurement of trust. Also, trust assignment to a new node having no history of any previous…

Modifying transmission control protocol (TCP) to improve its performance in wireless networks has been a long-standing research problem. Many methods have been proposed to improve TCPpsilas performance in mobile adhoc networks (MANETs). Among them…

Based on the UWB technology and the characteristic of Ad hoc networks, the formation of UWB networks and QoS guarantee are researched. We implement a novel routing strategy, adopting greedy forward based on location, limiting the flood of routing…

Mobile ad hoc networking is a challenging task due to the lack of resources in the network as well as the frequent changes in network topology. Although lots of research has been done on supporting QoS in the Internet and other networks, but they…