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Topology-transparent scheduling algorithms can work well in mobile ad hoc networks, since they are oblivious to the network topology changes and can provide throughput and delay guarantees. Recently, it has been shown that topology-transparent algorithms can provide comparable or even better performance, compared to topology-dependent algorithms. However, most existing topology-transparent scheduling...
In Mobile Adhoc networks (MANET) traditional congestion control mechanism RED encounters with new challenges such as high packet drop ratio, degradation of throughput and frequent link failures. Congestion in a network occurs when the demand on the network resources is greater than the available resources and due to increasing mismatch in link speeds caused by intermixing of heterogeneous network...
Routing protocols are required in network for deliver packets from source to destination. The multipath routing providing concept of load balancing but not efficiently distribute the load in network by that the valuable source of communication i.e. energy are affected from it because of packet loss. This paper work is motivated by the idea of taking account of several factors in Mobile Ad hoc Networks...
In wireless ad hoc networks, Quality of Service (QoS) can be obtained efficiently using the power control scheme. Power control can be achieved by incorporating cooperation among the available links. In this paper, we propose an adaptive pricing scheme that enables the nodes in the networks to determine the maximum allowable power that can be used for transmission of data within the networks so as...
Delay and capacity (throughput) are two important parameters to route data packets in Mobile Ad Hoc Networks (MANETs). In this paper, a new connectionless routing algorithm has been proposed to overcome the performance limit. The proposed algorithm is an extension of dynamic virtual route (DVR) algorithm. Mobility degree of nodes' neighborhood is used to calculate two mobility metrics. Mobility metrics...
Reference Point Group Mobility (RPGM) has been a practical mobility model used to efficiently capture the potential correlation among mobile nodes in many important applications. In this paper, we explore the throughput-delay tradeoff in a mobile ad hoc network (MANET) operating under the RPGM model and also a general setting of node moving speed. In particular, we consider a MANET with unit area...
Various constraints such as limited Residual Power, Bandwidth and Transmission Range of nodes are the factors that affect the performance of routing protocols in mobile ad hoc networks. This paper is dedicated to the study and simulation of effect of these constraints on the performance of MANET Routing Protocol in idealistic environment. For this purpose a simulator is designed using MATLAB-10, that...
Mobile Ad hoc Network (MANET) is a collection of independent mobile nodes that show its mobility nature. Due to this nature, the network congestion has been occurred. Since, TCP is the most popular connection oriented transport layer protocol used in the current internet. Whenever TCP Scheme applied over MANET, TCP found new challenges in respect of network congestion and non-congestion. We are concentrating...
Mobile Ad Hoc Network is a infrastructure-less, self-configuring wireless network. These unique characteristics makes it ideal for mission critical applications including Personal Area Networking (PAN), military use, Crisis-management applications such as battle field relief and remote explorations. Due to the de-centralized infrastructure, MANET becomes vulnerable to both passive and active attacks...
With the shift towards wireless technology increasing at a faster rate than ever before, it is becoming ever more important to focus on optimising the routing functionality of a wireless network. The purpose of this paper is to outline the different types of routing that can be applied in a Mobile Ad Hoc Network (MANET) and to propose a new routing protocol named SOAP. The SOAP routing protocol is...
A Mobile Ad-Hoc Network (MANET) is a arrangement of wireless mobile nodes which forms a temporary network for the communication without the access point, high availability of wireless devices in everyday is a measure factor in the success of infrastructure-less networks. MANET is dealing with both kinds of attacks, active and passive attacks at all the layers of network model. The lack in security...
Our earlier work [1] [2] shows interesting characteristics of transmission range/power of the MANET nodes on the performance of multipath MANET routing protocol. The objective of this work is to improve the performance of a MANET multi-path routing protocol without increasing or decreasing its default transmission range of the nodes. The proposed work is to control the routing process and only allow...
Wide spread of network equipped devices tempted the researchers to direct their efforts towards developing new technologies and applications that contribute in enhancing data transmission over Mobile Ad Hoc Networks (MANET). Routing technologies are considered the most challenging part in the ad hoc technology due to dynamic nature of wireless networks. These protocols affect the whole network performance...
Mobile Ad hoc Networks (MANETs) are wireless network, which have no central bridge, no fixed routers and no centralized administration. Routing is one of the most challenging issues in MANETs. The main aim of the routing protocol is to have an efficient route establishment between a pair of nodes, so that messages can be delivered in a timely manner. There are many protocols that have been developed...
Wireless Ad hoc Networks have gained huge popularity due to the fact that the initial setup cost of decentralized networks with respect to centralized networks is negligible. Both Routing Layer and Transport Layer protocols have been proposed for Wireless Ad Hoc Networks to optimize the hop by hop path discovery and end to end data delivery. This paper discusses the performance analysis of wireless...
Future of mobile adhoc network (MANET) is predicted grow due to the capability of network manage independently. One of important role in this network is routing protocols. A number of research about algorithm to find the best path in transmit of data has been done. Some routing protocol used in MANET, such as AODV, DSR and DSDV. This paper presents about investigation result of AODV, DSR and DSDV...
In MANET, all nodes are mobile in nature and having limited battery charge. Continuous change in position and connection degrades the battery charge of the nodes therefore it is necessary to save battery of those nodes which are having low battery so that the network lifetime can be long lasting. It is really very significant to increase lifetime of MANET. In order to enhance the lifetime of MANET;...
This paper reports a simulation based comparative analysis of Dynamic Source Routing On Demand Distance Vector (DSR) and Destination Sequenced Distance Vector (DSDV) protocol on the basis of parametric specifications like packet delivery ratio, packet lost, packet arrival rate and end to end delay. The information elicited from the simulation studies show that DSR has a consistent and uniform performance...
In this paper, we analyze the performances of the Medium Access Control protocol Multi-slot-ALOHA in a wireless ad hoc network modelled by a Poisson Point Process (PPP). By giving to nodes access to the medium for several time slots, Multislot ALOHA strengthens the reliability of transmissions, which is the main weakness of MAC protocols without acknowledgements. To our knowledge, this protocol has...
The paper introduces proactive integrated handoff management (IHM) scheme in cognitive radio mobile ad hoc networks (CR-MANETs) through an established route. This scheme considers the primary user (PU) activity, secondary user (SU) mobility and channel heterogeneity in the spectrum handoff decision. To reduce the handoff delay, handoff thresholds are used. When the spectrum handoff cannot be done...
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