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In this paper, we propose an improved MANET gateway selection scheme suitable for disaster recovery applications. Having an infrastructure less and decentralize features, MANET is well suited to bring the network back that has been collapse after a disaster. In this paper, we focus on improving throughput performance of MANET by designing a better gateway selection scheme. The key idea is to eliminate...
An Integrated Internet MANET is a heterogeneous networking architecture which is formed by interconnecting wired Internet with wireless MANET. Such architecture is needed in order to realize the potential of, and to achieve the stated objectives of proposed 5G networks of the future. Several issues arise in Integrated Internet MANET, chief among them being Quality of Service (QoS). Packet type based...
The popular method for MANET to access the Internet is choosing some gateways through which MANET can act as a subnet of the Internet. In these solutions, gateways will be the bottleneck of the whole network. Meanwhile, gateway selection and handoff are also the problems. Since aforesaid problems, a new protocol was implemented on embedded devices based on iAODV, and route optimization and link failure...
Thanks to the widespread use of wireless systems with the Android operating system, the presence of intelligent devices that can access the network is increasingly high. Wireless Mesh Networks are proposed today as the enabling technology to increase even more the pervasiveness of the Internet access and as a alternative to overcome typical limitations of existing infrastructure, but there have not...
In MANET, nodes are able to communicate with each other for a short range only. To extend the communication range of MANET, an Internet gateway is used which acts as a bridge between the conventional network and MANET. To enable the long range communication, a MANET node needs to discover and then select the appropriate gateway using various proposed schemes. Some of the schemes suffer from lack of...
Integrated Internet-MANET (IIM) architecture is a hybrid network which is an interconnection of the wired Internet and wireless MANET. This interconnection is facilitated through gateways. Some of the important issues in this integration are gateway discovery and gateway load balancing. So far, these issues have been addressed separately in the literature. The issues of gateway load balancing and...
Ubiquitous Internet access has become a reality with the proliferation of mobile devices. One of the architectures which have the potential to abet ubiquitous Internet access is the Integrated Internet-MANET architecture, which is an interconnection of the wired Internet with wireless MANET. Gateway discovery and gateway load balancing are important issues in Integrated Internet-MANET and have been...
Gateway discovery algorithm is a fundamental protocol for interconnecting mobile ad hoc network (MANET) with the Internet. In most existing schemes, each gateway node broadcasts gateway advertisements to announce its presence. The decision of when to emit advertisements can influence the performance of the network. Traditional gateway discovery schemes adopt the method of periodically emitting advertisements...
Mobile Ad hoc Network (MANET) consists of a set of mobile nodes which communicate among them only using their wireless interface. In order to get connected with internet, mobile nodes need to find out Gateway (GW), a particular type of mobile nodes which are directly connected with internet. Proactive, reactive, and hybrid, are the three methods for gateway discovery. In hybrid approach, GW nodes...
An interconnection of mobile ad hoc network and wired Internet is called Integrated Internet-MANET. This interconnection is achieved through gateways. There are two very important issues in Integrated Internet-MANET. First, path load balancing in the communication of mobile nodes with gateways. Second, mobile nodes register with a gateway before communication begins. This registration is achieved...
For modeling and verifying software systems Formal Methods is an effective methodology. Pi-calculus is a kind of process algebra which can be used to model concurrent and dynamic systems. For analyzing and verifying mobile concurrent systems described by pi-calculus we use Mobility Workbench (MWB) tool. This paper presents a protocol that provides secure gateway (GW) selection mechanism depending...
A mobile node who wants to communicate to the nodes in the Internet must firstly be configured a global IP address. The existing schemes have different drawbacks. A novel IP address auto-configuration scheme for MANET with multiple gateways is presented in this paper. It can provide the mobile node with MANET-local address and global IP addresses and guarantee that these addresses configured by this...
The mobile adhoc networks have become a major component of the future network development due to their ease of deployment, self configurability, flexibility and independence on any existing network infrastructure Mobile ad-hoc network have the attributes such as wireless connection, continuously changing topology, distributed operation and ease of deployment. We present a design space analysis of...
Looking for usable gateway is a process, which brings the biggest overhead, in MANET accessing Internet. For controlling the routing overhead effectively, a gateway discovery method for MANET accessing Internet based on overhead control, which is according to the similar between ant searching path and mobile node searching gateway, is proposed in this paper. By simulating the pheromone's update process...
Lot of research has been carried out in the field of integrating MANET with Internet. The main challenge in this direction can be grouped into four categories: addressing, routing, gateway and mobility issues. Of these, the Gateway has grabbed the attention of most researchers as it is dual interfaced and serves as a liaison between the mobile node in the MANET and the fixed node in the internet....
Most of the research in the field of ad hoc network is limited to stand-alone isolated networks. In order to facilitate the users with the huge pool of resources together with the global services available from the Internet and for widening the coverage area of the MANET there is a growing need to integrate these ad hoc networks to the Internet. For this purpose we need gateways which act as bridges...
The overall performance of hybrid ad hoc networks, which is the integration of ad hoc networks and fixed IP networks like the Internet is affected heavily by the discovery and selection of Internet gateways. Each of existing proposals is suited only for a limited range of network conditions and its performance can vary dramatically as the network conditions change. The obvious unidirectional links...
In mobile ad hoc networks (MANETs) where there exist multiple Internet gateways, performing load balancing among available gateways is vital in order to take full advantage of the network capacity and improve the performance. However, performing load balancing in a wireless environment is very challenging due to the inherently interfering and unreliable nature that characterize wireless communication...
MANET (Mobile Ad Hoc Networks) is turning to be the recommended way to interconnect mobile nodes (MNs) to Internet when they move away from networks structures. The Mobile IP agents used to permit MNs IP mobility may announce their presence either using a proactive or a reactive discovery approach, but when MNs handover between different MANET sub-networks, ongoing communications may become interrupted...
Integrating nodes in a MANET to the Internet require either a connection to the Internet or they can connect to the Internet through the Internet gateways or servers. For the second case a node in a MANET has to find out the gateway or server to connect to the fixed nodes in the Internet. End to end packet delay and throughput are strongly dependent on the time needed to discover the gateways. A source...
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