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Without any pre-existing fixed network infrastructure with rapid configuration of wireless connections on-the-fly, network topology in MANETs keep on changing rapidly. Thus achieving data transmissions between wireless nodes in MANETs with improved QoS parameters become a challenging issue. To achieve this one has to concentrate on the routing protocol they choose. In our paper we proposed an algorithm...
Without any pre-existing fixed network infrastructure with rapid configuration of wireless connections on-the-fly, network topology in MANETs keep on changing rapidly. Thus achieving data transmissions between wireless nodes in MANETs with improved QoS parameters become a challenging issue. To achieve this one has to concentrate on the routing protocol they choose. In our paper we proposed an algorithm...
Recently, the necessity of applications where many users have to interact in a close manner over mobile Ad-Hoc networks gains high popularity. Multicast communication is essential in this type of applications to reduce the overhead of group communication. For group-oriented multimedia applications Quality of Service (QoS) provision is a basic requirement, which makes an efficient QoS multicast routing...
Wireless networks will carry various multimedia applications such as voice, video and data in the future. In order to provide service quality for delay sensitive applications such as voice and video, it is necessary that mobile ad hoc networks (MANETs) support quality of service (QoS) routing in terms of bandwidth and delay. Content-based communication is a competent candidate for such dynamic networks...
Mobile ad hoc networks (MANETs) are collection of mobile nodes communicate in a multi-hop manner without relaying on any infrastructure or central administration. Multimedia and group-oriented applications over MANETs gain high popularity, which makes providing quality of services (QoS) a key requirement. This work proposed a new efficient approach which aims to find paths between the source and all...
Wireless ad hoc networks are well suited for use by emergency response teams, for search and rescue operations that require team-based communications in the absence of working telecommunications infrastructure. Unfortunately, wireless ad hoc networks suffer from limited bandwidth and QoS constraints. A proposed explicit multicast (XCAST) based routing protocol (P-XCAST) is presented in this paper...
Due to its bandwidth efficiency, multicast makes a group-centric communication more viable in wireless ad hoc networks with limited radio resources. PIM-SM, a de facto standard multicast protocol known for its high scalability, is a good fit for a large-scale ad hoc network. However, it does not provide a robust multicast communication under RP outage and host mobility. In this paper, we propose a...
An innovative and scalable routing scheme for mobile ad-hoc networks (MANETs) is proposed, taking into account aspects such as quality of service (QoS) and resiliency. These issues are tackled by using a robust routing scheme in conjunction with a dynamic cell deferred routing strategy. This approach consists in dividing the network into cells which maintain different and sufficient topology views,...
Wireless ad hoc networks are self-configurable distributed systems. One of the major problems in traditional wireless ad hoc networks is interference. The interference could be reduced using smart directional antennas. In this study, multibeam smart antennas have been used. When using this type of antenna, two nodes can communicate when both the sending and receiving beams are pointing towards each...
A multimetric QoS routing protocol (MQOLSR) is proposed in this paper, which providing different QoS for different applications flow in an ad hoc network. The protocol, which integrates QoS measurement and packet forwarding, expands the topology discovery and routing computing mechanism of the OLSR protocol. It can provide different routing and forwarding service according to different application...
Mobile ad hoc network (MANET) is a multi-hop temporary autonomous system of mobile nodes with wireless transmitters and receivers without the aid of pre-established network infrastructure. With the development of network and demand of users, QoS has become one of the focus issues. A new routing protocol is proposed in this paper, which can provide QoS guarantee. In the route discovery phase, it finds...
As wireless local area networks (WLAN) become ubiquitous and an integral part of data networks, they will also be increasingly used for applications ranging from standard Internet services like ftp to time bound multimedia applications, such as Voice (or Video) over IP (VoIP/VIP), HDTV etc. with strict latency, throughput or jitter restrictions. These applications on WLAN will also be more bandwidth...
Wireless mesh networks (WMNs) have recently gained a lot of popularity due to their rapid deployment and instant communication capabilities. However, as a key technology for next-generation wireless networking, WMNs lack suitable routing metrics and protocol for new features. Currently, AODV is the routing protocol used in WMNs. This paper proposes an ants-in-mesh (AIM) routing protocol for wireless...
Due to the dynamically varying network topology ofad-hoc networks, the admitted quality of service suffers from frequent path breaks that require network re-establishment over new paths. Thus, rendering ad-hoc networks inappropriate for real-time interactive sessions, e.g., video or audio calls. TORA is a distributed, loop-free, multipath routing protocol for multi-hop networks which supports both...
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 are not suitable for mobile Ad hoc networks and still QoS support for such networks remains an open problem. In this paper, a new scheme has been proposed...
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