A Scheme Encouraging Mobile Nodes to Forward Packets via Multiple Wireless Links Aggregating System Between the Internet and Mobile Ad Hoc Networks

2005 ◽  
pp. 110-123 ◽  
Author(s):  
Yosuke Ito ◽  
Hiroshi Mineno ◽  
Susumu Ishihara
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Ad Hoc ◽  
The Internet ◽  
Mobile Nodes ◽  
Wireless Links ◽  
Mobile Ad Hoc ◽  
Hoc Networks

scholarly journals EFFICIENT MANET- INTERNET INTEGRATION FOR MOBILE DEVICES

2014 ◽  
Vol 14 (1) ◽  
pp. 5343-5351
Author(s):  
Mahesh kumar Tiwari ◽  
UDAI SHANKAR ◽  
AJAY KUMAR
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Node ◽  
The Internet ◽  
Mobile Nodes ◽  
Gateway Discovery ◽  
Mobile Ad Hoc ◽  
Hoc Networks

A mobile ad hoc network (MANET) consists of wireless mobile nodes without having a fixed infrastructure support. The communication between these mobile nodes is carried out without any centralized control. The communication among the nodes within the infrastructure less networks is done through Ad-Hoc routing protocols, But whenever any mobile node want to communicate to a node in a network that is outside the ad hoc network such as internet, there should be an appropriate mechanism for establishing this connection with the internet node or host. Gateway discovery is a fundamental process in connecting MANET with the internet. A mobile node can connect to the internet by discovery of some specialized nodes called as gateway nodes. These Gateway nodes act as a bridge between the mobile ad hoc networks node and the internet. The basic aim of the gateway discovery approach is to modify the route discovery process so that it is not only used for discovery of destination mobile nodes but also the gateways. In this paper we are going to present a review of various gateway discovery approaches which are used for establishing the interconnection of mobile ad hoc networks and internet and going to propose a algorithm that reduce the discovery time of the gateway by selective forwarding and simultaneously also optimize the gateway discovery control overheads.

scholarly journals A Review Of Internet Gateway Discovery Approaches For Mobile Adhoc Networks

2005 ◽  
Vol 4 (2) ◽  
pp. 495-508 ◽  
Author(s):  
Deepak Kumar Patel ◽  
Rakesh Kumar
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Node ◽  
The Internet ◽  
Mobile Nodes ◽  
Gateway Discovery ◽  
Mobile Ad Hoc ◽  
Hoc Networks

A mobile ad hoc network (MANET) consists of wireless mobile nodes without having a fixed infrastructure. The communication between these mobile nodes is carried out without any centralized control. The communication among the nodes within the infrastructure less networks is done through some routing protocol. But whenever any mobile node want to communicate a node in a network that is outside the ad hoc network such as internet, there should be an appropriate mechanism for establishing this connection. Gateway discovery is a fundamental process in connecting MANET with the internet. A mobile node can connect to the internet by discovery of some specialized nodes called as gateway nodes These Gateway nodes act as a bridge between the mobile ad hoc networks and the internet. The basic aim of the gateway discovery approach is to modify the route discovery process so that it is not only used for discovery of destination mobile nodes but also the gateways. In this paper we are going to present a review of various gateway discovery approaches which are used for establishing the interconnection of mobile ad hoc networks and internet.

Security Issues in Mobile Ad Hoc Networks

2014 ◽  
pp. 176-221 ◽  
Author(s):  
Sunil Kumar ◽  
Kamlesh Dutta
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Mobile Nodes ◽  
Security Vulnerabilities ◽  
Security Issues ◽  
Mobile Ad Hoc ◽  
Hoc Networks

A Mobile Ad hoc NETwork (MANET) is a self-organizing, infrastructure-less network of mobile nodes connecting by wireless links. In operation, the nodes of MANETs do not have a central control mechanism. It is known for its properties of routable network, where each node acts as a router to forward packets to other specific nodes in the network. The unique properties of MANET have made it useful for large number of applications and led to a number of security challenges. Security in the mobile ad hoc network is a very critical job and requires the consideration of different security issues on all the layers of communication. The countermeasures are the functions that reduce or eliminate security vulnerabilities and attacks. This chapter provides a comprehensive study of all prominent attacks in Mobile Ad Hoc Networks described in the literature. It also provides various proactive and reactive approaches proposed to secure the MANETs. Moreover, it also points to areas of research that need to be investigated in the future.

scholarly journals Survey of mobile ad hoc networks (manets)

2019 ◽  
Vol 8 (02) ◽  
pp. 24484-24490
Author(s):  
Abdulghani Saif Kasem Mohammed ◽  
Khalid Hamid Bilal
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Multipath Propagation ◽  
Mobile Nodes ◽  
Mobile Hosts ◽  
Mobile Ad Hoc ◽  
Hoc Networks

Mobile Ad Hoc Network (MANET) is the one of the type of ad hoc network, the MANET is a collection of two or more devices or nodes or terminals with wireless communications and networking capability that communicate with each other without the aid of any centralized  administrator also the wireless nodes that can dynamically form a network to exchange information without using any existing fixed network infrastructure. And it's an autonomous system in which mobile hosts connected by wireless links are free to be dynamically and sometime act as routers at the same time, In MANET, the mobile nodes require to forward packets for each other to enable communication among nodes outside of transmission  range. The nodes in the network are free to move independently in any direction, leave and join the network arbitrarily. Thus a node experiences changes in its link states regularly with other devices. Eventually, the mobility in the ad hoc network, change of link states and other properties of  wireless transmission such as attenuation, multipath propagation, interference etc. This paper discuses   study of Mobile ad-hoc Networks (MANET): classification, characteristics, structure of  MANET  and challenges that are imposed by Mobile ad-hoc Networks.

scholarly journals A Stable TORA Based for Routing in Mobile Ad Ηoc Networks

2018 ◽  
Vol 8 (1) ◽  
pp. 2532-2536
Author(s):  
S. Jahanbakhsh Gudakahriz ◽  
S. Jamali ◽  
M. Vajed Khiavi ◽  
A. Soleimany
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
High Efficiency ◽  
Mobile Nodes ◽  
Face Routing ◽  
Mobile Ad Hoc ◽  
Hoc Networks ◽  
High Adaptation

A mobile ad hoc network (MANET) is defined as a set of mobile nodes which communicate through wireless links with no central infrastructure. In these networks nodes are always moving and could enter to or exit from the network at any time. Therefore, network topology is completely dynamic. Another characteristic of these networks is the low node energy level, resulting from inherent node limitations. Stable routing is one method to face routing challenges in mobile ad hoc networks. The objective of this study is to stabilize TORA protocol which is a distributed routing protocol, with high adaptation, efficiency, and suitability for large and dense mobile ad hoc networks and thus to provide a new high efficiency protocol. The proposed protocol introduced as Stable-TORA has been compared with base protocol TORA in different scenarios via NS-2 simulator environment and its efficiency is evaluated.

Service Discovery in Mobile Ad-Hoc Networks

2010 ◽  
pp. 217-225
Author(s):  
Haidar Safa ◽  
Zeina Koteiche
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Routing Protocols ◽  
Service Discovery ◽  
Ad Hoc ◽  
Mobile Nodes ◽  
Relevant Role ◽  
Basic Concepts ◽  
Mobile Ad Hoc ◽  
Hoc Networks

Service discovery plays a relevant role in mobile ad hoc environments. Indeed, upon joining a self-organizing network, mobile nodes should be able to explore the environment to learn about, locate, and share the available services. As a result, many researches were performed in this area. Recently, research is being directed towards integrating the service discovery into the routing protocols. This chapter presents the basic concepts of service discovery and their related issues. It also describes the service discovery challenges that arise due to the properties of mobile ad hoc networks. The chapter is concluded by presenting some observations and discussing the current challenges to provide guidelines for possible improvements.

Location Update Improvement Using Fuzzy Logic Optimization in Location Based Routing Protocols in MANET

2013 ◽  
pp. 138-158
Author(s):  
Amjad Osmani ◽  
Abolfazl Toroghi Haghighat ◽  
Shirin Khezri
Keyword(s):  
Fuzzy Logic ◽  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Routing Protocols ◽  
Ad Hoc ◽  
Mobile Nodes ◽  
Location Update ◽  
Logic Optimization ◽  
Mobile Ad Hoc ◽  
Hoc Networks

Several position-based routing protocols have been developed for mobile ad hoc networks. Many of these protocols assume that a location service is available which provides location information on the nodes in the network. This paper introduces a new schema in management of mobile nodes location in mobile ad hoc networks. Fuzzy logic optimization is applied to a better management of location update operation in hierarchical location services. Update management overhead is decreased without significant loss of query success probability. One-hop-chain-technique is used for Auto compensation. A new composed method can update mobile nodes location when the nodes cross a grid boundary. The proposed method uses a dynamic grid area that ?solves the ping-pong problem between grids. Simulation results show that these methods are effective. The algorithms are distributed and can keep scalability in the scenario of increasing nodes density?. The described solutions are not limited to a special network grid ordering, and can be used in every hierarchical ordering like GLS if the ordering can be mappable on these methods.

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