Download or read book The Design and Performance Evaluation of a Proactive Multipath Routing Protocol for Mobile Ad Hoc Networks written by Ali Abdalla Etorban and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to unpredictable network topology changes, routing in Mobile Ad Hoc Networks (MANET) is an important and challenging research area. The routing protocol should detect and maintain a good route(s) between source and destination nodes in these dynamic networks. Many routing protocols have been proposed for mobile ad hoc networks, and none can be considered as the best under all conditions. This thesis presents the design and implementation of a new proactive multipath MANET routing protocol. The protocol, named Multipath Destination Sequenced Distance Vector (MDSDV), is based on the well known single path Destination Sequenced Distance Vector (DSDV). We show that the protocol finds node-disjoint paths, i.e., paths which do not have any nodes in common, except for the source and the destination. The thesis presents a systematic evaluation of MDSDV in comparison with three well known protocols: one proactive (DSDV), and two reactive (AODV) and (DSR). MDSDV behaves very well in terms of its packet delivery fraction and data dropped in both static and dynamic networks. It delivers nearly 100% of data in dense networks (networks with more than 20 nodes). The speed of the nodes and the number of sources have a low impact on its performance.

Download or read book Design and Performance Evaluation of a New Routing Protocol for Mobile Ad Hoc Networks written by Piyush Khengar and published by . This book was released on 2004 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the ACM International Workshop on Performance Evaluation of Wireless Ad Hoc Sensor and Ubiquitous Networks written by and published by . This book was released on 2005 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Performance Evaluation of Multipath Routing with Multichannel Ad Hoc Networks written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A mobile ad hoc network is a collection of autonomous nodes connected to each other in a peer-to-peer fashion on a wireless medium. Such networks are used in emerging applications which require co-operative mobile data exchange in areas where there is little or no infrastructure available or where providing such infrastructure is not cost effective. Efficient dynamic routing is a major research challenge in such a network. Multipath routing provides a strong potential for efficient routing by maintaining multiple routes. This provides some form of fault-tolerance, as alternate paths can be used when one breaks. Also, data packets can be forwarded via multiple paths concurrently thus exploiting a larger network capacity. However, CSMA (carrier-sense multiple access) being a dominant form of channel access protocol in mobile ad hoc network, multipath forwarding is often unable to exploit its full potential. This is because multiple paths may form in each others2 radio neighborhood limiting spatial diversity. Data transmission in one path causes sufficient interference in another such that only one path can be used at a time. This phenomenon has been known as 3route coupling.4 We investigate the use of multichannel CSMA-based medium access protocols to reduce the impact of such route coupling. We use two such multichannel protocols to demonstrate that a significant throughput improvement is possible at high offered loads relative to the single channel CSMA for multipath data forwarding scenarios. One of the protocols chooses the channel based on interference power measurement at the sender. The other chooses a unique channel for each path. Our study shows that the multichannel protocols are able to limit the impact of interference between neighboring transmissions effectively.

Download or read book A Reinforcement Learning Network based Novel Adaptive Routing Algorithm for Wireless Ad Hoc Network written by Jagrut Solanki and published by GRIN Verlag. This book was released on 2015-02-24 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientific Essay from the year 2015 in the subject Engineering - Communication Technology, , language: English, abstract: Mobile communication has enjoyed an incredible rise in quality throughout the last decade. Network dependability is most important concern in wireless Ad-hoc network. a serious challenge that lies in MANET (Mobile Ad-hoc network) is that the unlimited mobility and lots of frequent failure because of link breakage. Standard routing algorithms are insufficient for Ad-hoc networks. as a results of major drawback in MANET is limited power provide, dynamic networking. In MANET each node works as a router and autonomously performs mobile practicality. The link connectivity changes ceaselessly because of mobility to reflect this routing information additionally needs to get changed ceaselessly. AODV protocol is projected for this extraordinarily mobile network. In ancient AODV if any node fails in middle of transmission the method starts from the source node but in our propose scheme the transmission starts from the closest neighbor node therefore shows very important reduction in delay and improvement in packet delivery ratio are achieved. It also reduces the routing overhead by reducing the frequency of route discovery process.

Download or read book Evaluation Of Proactive Multipath Routing Protocols for MANET S written by Ravinder Singh Mann and published by . This book was released on 2016-08-23 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Wireless Networks written by Geyong Ming and published by Nova Publishers. This book was released on 2007 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent years have witnessed tremendous growth in the population of mobile users demanding high performance, reliability and quality-of-service (QoS). Wireless networks are undergoing rapid developments and dramatic changes in the underlying technologies, in order to cope with the difficulties posed by the scarce wireless resource as well as keep up with the increasing day-to-day demand for cost-effective service of multimedia applications. Predicting and optimising the performance and QoS of wireless networks using analytical modelling, simulation experiments, monitoring and testbed-based measurements are crucial to the proper design, tuning, resource management and capacity planning of such networks. This book is dedicated to review important developments and results, explore recent state-of-the-art research and discuss new strategies for performance modelling, analysis and enhancement of wireless networks. The objective is to make analytical modelling, simulation and measurement tools, and innovative performance evaluation methodology possible and understandable to a wider audience.

Download or read book Topology Control Routing Protocols and Performance Evaluation for Mobile Wireless Ad Hoc Networks written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A mobile ad-hoc network (MANET) is a collection of wireless mobile nodes forming a temporary network without the support of any established infrastructure or centralized administration. There are many potential applications based the techniques of MANETs, such as disaster rescue, personal area networking, wireless conference, military applications, etc. MANETs face a number of challenges for designing a scalable routing protocol due to their natural characteristics. Guaranteeing delivery and the capability to handle dynamic connectivity are the most important issues for routing protocols in MANETs. In this dissertation, we will propose four algorithms that address different aspects of routing problems in MANETs. Firstly, in position based routing protocols to design a scalable location management scheme is inherently difficult. Enhanced Scalable Location management Service (EnSLS) is proposed to improve the scalability of existing location management services, and a mathematical model is proposed to compare the performance of the classical location service, GLS, and our protocol, EnSLS. The analytical model shows that EnSLS has better scalability compared with that of GLS. Secondly, virtual backbone routing can reduce communication overhead and speedup the routing process compared with many existing on-demand routing protocols for routing detection. In many studies, Minimum Connected Dominating Set (MCDS) is used to approximate virtual backbones in a unit-disk graph. However finding a MCDS is an NP-hard problem. In the dissertation, we develop two new pure localized protocols for calculating the CDS. One emphasizes forming a small size initial near-optimal CDS via marking process, and the other uses an iterative synchronized method to avoid illegal simultaneously removal of dominating nodes. Our new protocols largely reduce the number of nodes in CDS compared with existing methods. We show the efficiency of our approach through both theoretical analysis and simulation experiments. Finally, using multiple redundant paths for routing is a promising solution. However, selecting an optimal path set is an NP hard problem. We propose the Genetic Fuzzy Multi-path Routing Protocol (GFMRP), which is a multi-path routing protocol based on fuzzy set theory and evolutionary computing.

Download or read book Design and Development of Efficient Multipath Routing Protocol in Mobile Ad hoc and Sensor Networks written by Dr J Viji Gripsy and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Multi rate multi range Routing Protocol for Multi hop Mobile Ad Hoc Networks written by 陳仁暉 and published by . This book was released on 2002 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the Second International Conference on Soft Computing for Problem Solving SocProS 2012 December 28 30 2012 written by B. V. Babu and published by Springer. This book was released on 2014-07-08 with total page 1529 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present book is based on the research papers presented in the International Conference on Soft Computing for Problem Solving (SocProS 2012), held at JK Lakshmipat University, Jaipur, India. This book provides the latest developments in the area of soft computing and covers a variety of topics, including mathematical modeling, image processing, optimization, swarm intelligence, evolutionary algorithms, fuzzy logic, neural networks, forecasting, data mining, etc. The objective of the book is to familiarize the reader with the latest scientific developments that are taking place in various fields and the latest sophisticated problem solving tools that are being developed to deal with the complex and intricate problems that are otherwise difficult to solve by the usual and traditional methods. The book is directed to the researchers and scientists engaged in various fields of Science and Technology.

Download or read book Enhancing the Performance of Ad Hoc Wireless Networks with Smart Antennas written by Somprakash Bandyopadhyay and published by CRC Press. This book was released on 2016-04-19 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: A large portion of the network capacity of an ad hoc network can be wasted by the medium access mechanisms of omni-directional antennas. To overcome this problem, researchers propose the use of directional or adaptive antennas that largely reduce radio interference, improving the utilization of wireless medium and the resulting network throughput.

Download or read book Mobile Ad Hoc Networks written by G Ram Mohana Reddy and published by CRC Press. This book was released on 2016-08-19 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, a lot of work has been done in an effort to incorporate Swarm Intelligence (SI) techniques in building an adaptive routing protocol for Mobile Ad Hoc Networks (MANETs). Since centralized approach for routing in MANETs generally lacks in scalability and fault-tolerance, SI techniques provide a natural solution through a distributed approach for the adaptive routing for MANETs. In SI techniques, the captivating features of insects or mammals are correlated with the real world problems to find solutions. Recently, several applications of bio-inspired and nature-inspired algorithms in telecommunications and computer networks have achieved remarkable success. The main aims/objectives of this book, "Mobile Ad Hoc Networks: Bio-Inspired Quality of Service Aware Routing Protocols", are twofold; firstly it clearly distinguishes between principles of traditional routing protocols and SI based routing protocols, while explaining in detail the analogy between MANETs and SI principles. Secondly, it presents the readers with important Quality of Service (QoS) parameters and explains how SI based routing protocols achieves QoS demands of the applications. This book also gives quantitative and qualitative analysis of some of the SI based routing protocols for MANETs.

Download or read book Autonomic Communication written by Ioannis Stavrakakis and published by Springer. This book was released on 2006-02-27 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the thoroughly refereed post-proceedings of the Second International IFIP Workshop on Autonomic Communication, WAC 2005, held in Athens, Greece in October 2005. The 22 revised full papers presented together with one keynote paper, three invited papers and two panel summaries were carefully selected during two rounds of reviewing and improvement from numerous submissions. The papers discuss the principles of Autonomic Communication (AC).

Download or read book Multipath Routing Protocol for Ad Hoc Networks written by Phu Hung Le and published by . This book was released on 2012 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mobile ad hoc networks (MANETs) consist of a collection of wireless mobile nodes that move freely and self-configure without a preexisting communication infrastructure. In MANETs, under the arbitrary movement of nodes and highly dynamic topology conditions, the routing protocols for fixed networks do not perform well. To adapt to the rapid change of topology, many routing protocols have been proposed. However, most of them chose the minimum hop-count routes. This choice can lead to significant reduction of the network performance because communication quality via the chosen links is not good. Thus, the evaluation of link quality is indispensable and interference is a key factor to be considered. In the literature, most of the existing interference-aware protocols are single path and the consideration for interference range is limited. Several proposed interference-aware multi-path protocols for MANETs are either not highly efficient or have the computational complexity of NP-hard.To tackle the above problems, we first determine an interference region of each link including all nodes that can interfere with this link. Then, we propose a formula to evaluate the interference level of each link. Based on the formula of the link interference, we develop a series of interference-aware multi-path routing protocols for mobile ad hoc networks. These interference-aware multi-path routing protocols minimize the impact of interference on the paths from the source to the destination to increase the network performance. The computational complexity of the protocols is polynomial and each of them is most suitable for a type of network size. To demonstrate the efficiency of the interference-aware multi-path routing protocols, we compare them to prominent protocols in different network sizes and a high mobility environment when the RTS/CTS (Request-To-Send/Clear-To-Send) mechanism is alternatively turned on and turned off. The simulation results show that our protocols significantly improve packet delivery fraction, and reduce end-to-end delay, routing overhead, and normalized routing load.The RTS/CTS mechanism is to restrict the collision caused by the hidden terminals. However, we indicate that the RTS/CTS mechanism is not suitable for mobile ad hoc network based on the simulation results.

Download or read book Performance Analysis of Mobile Ad Hoc Networking Routing Protocols written by Lee K. Thong and published by . This book was released on 2004-12-01 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents a simulation and performance evaluation analysis of the various routing protocols that have been proposed for the Mobile Ad Hoc Network (MANET) environment using the Network Simulator-2 (NS-2) tool. Many routing protocols have been proposed by the academic communities for possible practical implementation of a MANET in military, governmental and commercial environments. Four (4) such routing protocols were chosen for analysis and evaluation: Ad Hoc On-demand Distance Vector routing (AODV), Dynamic Source Routing (DSR), Destination-Sequenced Distance Vector routing (DSDV) and Optimized Link State Routing (OLSR). NS-2 is developed and maintained by the University of Southern California's Information Sciences Institute (ISI). Leveraging on NS-2 s simulation capabilities, the key performance indicators of the routing protocols were analyzed such as data network throughput, routing overhead generation, data delivery delay as well as energy efficiency or optimization. The last metric is explored, especially due to its relevance to the mobile environment. Energy is a scare commodity in a mobile ad hoc environment. Any routing software that attempts to minimize energy usage will prolong the livelihood of the devices used in the battlefield. Three important mobility models are considered, namely, Random Waypoint, Manhattan Grid, and Reference Point Group Mobility. The application of these three models will enhance the realism of simulation to actual real life mobility in an urban or military setup scenario. The performance of the routing protocols in varied node density, mobility speed as well as loading conditions have been studied. The results of the simulation will provide invaluable insights to the performance of the selected routing protocols. This can serve as a deciding factor for the U.S. Department of Defense (DoD) in their selection of the most suitable routing protocols tailored to their specific needs.

Download or read book A Performance Evaluation of Routing Protocols for Mobile Ad hoc Networks Through Simulation written by Anil Kumar Mandala and published by . This book was released on 2004 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: