Download or read book Modeling and Performance Analysis of Mobile Ad Hoc Networks written by Xiaolong Li and published by LAP Lambert Academic Publishing. This book was released on 2010 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ad hoc networks are gaining increasing popularity in recent years because of their ease of deployment. In ad hoc networks, Medium Access Control (MAC) protocols are a fundamental element that determines the efficiency in sharing the limited communication bandwidth. IEEE 802.11 distributed coordination function (DCF) is the most widely used MAC protocol in ad hoc networks due to its compatibility with the IEEE 802 protocol suite. Since the release of the IEEE 802.11 specification, many research efforts have been devoted to modeling the performance of this protocol. However, most of studies are confined to the stationary performance with ideal channel. This book aims to release these assumptions and find the impact of mobility and time varying channel on the DCF performance.

Download or read book Modelling and Performance Analysis of Mobile Ad Hoc Networks written by Osama Younes and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modeling and Performance Analysis of Mobile Ad Hoc Networks written by and published by . This book was released on 2006 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ad hoc networks are gaining increasing popularity in recent years because of their ease of deployment. No wired base station or infrastructure is supported, and each host communicates one another via packet radios. In ad hoc networks, nodes are mobile which bring many challenges, such as network connectivity, topology change, link characteristic, and etc. In this research work, a novel model to analyze the link stability in mobile ad hoc networks is proposed. In the proposed analytical model, between each communicating pair, one node is considered to be stationary while the other moves relative to it. With this method, the mobility models defined in this dissertation can be approximated as a fluid flow model. Using the result of the fluid flow model, the analytical model for the link duration is obtained, which is used to obtain the link holding time and the link breaking probability of a communicating pair. The distribution of a routing path duration and the routing path breaking probability are also obtained by extending the models of the link duration and the link breaking probability. These results of link and routing path stabilities are serviced as ground knowledge to obtain the performance of medium access control (MAC) protocol considering node mobility. MAC protocols are a fundamental element that determines the efficiency in sharing the limited communication bandwidth of wireless channels. IEEE 802.11 distributed coordination function (DCF) MAC protocol is the most widely used MAC protocol in ad hoc networks due to its compatibility with the IEEE 802 protocol suite. Since the release of the IEEE 802.11 standard, many research efforts have been devoted to modeling the performance of this protocol. However, most of studies are confined to the stationary performance where the nodes are immobile. In this research work, we employ the link and routing path stability models to analyze the performance of the IEEE 802.11 DCF MAC protocol in dynamic environment. To the best of our knowledge, this is the first time to evaluate the performance of this protocol with mobility. Another contribution of this research work is to analyze the performance of the IEEE 802.11 DCF MAC protocol with capture effect. Currently, most analytical models assume that all received packets at the receiver have the same physical conditions (same power, same coding, etc), so when two or more nodes transmit their packets at the same time, the collision happens and all packets involved are destroyed, which may not be the case in reality due to capture effect. In this research work, we provide an analytical model to obtain the probability of capture effect. We use this probability of capture effect to analyze the throughput of the IEEE 802.11 DCF MAC protocol in ad hoc networks considering path loss, multipath fading, and shadowing. Wireless channel is time-varying and error prone. The packet transmission can be failed due to transmission errors. In this research work, a refined analytical model is presented to evaluate the performance of the IEEE 802.11 DCF MAC protocol with time-varying wireless channel. In the proposed model, the time-varying wireless channel is modeled by a finite-state Markov (FSM) chain. In each channel state, the operation of the IEEE 802.11 DCF MAC protocol is modeled by an embedded Markov chain. Using this model, the throughput of the DCF protocol can be theoretically calculated. The results show that the performance of the DCF protocol strongly depends on the network size, the incoming traffic loads, and the bit error rate (BER). When the incoming traffic load is light, the throughput increases when the network size grows. When the network works under heavy (saturated) condition, the throughput decreases when the network size grows. The throughput always degrades when increasing BER regardless the network size and the traffic load.

Download or read book Performance Analysis of Mobile Ad Hoc Networks written by Chansu Yu and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rapid development of wireless digital communication technology and the corresponding network software systems have created new horizons for communication beyond the Internet realising the connected society. Among them, the field of mobile ad hoc networking is experiencing unprecedented growth in its scale and application diversity. Without requiring the pre-existence of communication infrastructures, a temporary network can be established on demand and disappears when there is no need. Although some basic concepts have been identified and elaborated, the mobile ad hoc networking is still in its early stage of research and development. Multihop communication with dynamic topology caused by mobility poses interesting but unique challenges ranging from the network-layer connectivity problem to the link-layer capacity issue. And, it should not be considered as a natural extension of infrastructure-based networks, such as cellular networks and IEEE 802-11 networks, because it often leads to confusion and non-optimal design choices.

Download or read book Statistical Models and Performance Evaluation of Mobile and Ad Hoc Networks written by Xianren Wu and published by . This book was released on 2008 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Simulation and Performance Analysis of the AD HOC On Demand Distance Vector Routing Protocol for Tactical Mobile AD HOC Networks written by Tyrone P. Theriot and published by . This book was released on 2000-12-01 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents a simulation and analysis of the Ad Hoc On- Demand Distance Vector Routing Protocol (AODV) for mobile ad hoc network (MANET) environments using the Network Simulator 2 (NS2) tool. AODV is being suggested for possible implementation in the Joint Tactical Radio System (JTRS) for the United States military. Utilizing an AODV model resident in NS2, the simulation focuses on key performance parameters that include the packet delivery fraction, routing loss, buffer loss, total loss, throughput and goodput. The AODV node movement and traffic connection files have been generated to measure the network performance for a given environment using specific parameters. The results reported in this thesis indicate that the network environment size, packet rate and offered load are critical to the network performance. Node velocity played a minimal role in affecting the overall network performance.

Download or read book Handbook of Mobile Ad Hoc Networks for Mobility Models written by Radhika Ranjan Roy and published by Springer Science & Business Media. This book was released on 2010-10-20 with total page 1140 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Mobile Ad Hoc Network (MANET) has emerged as the next frontier for wireless communications networking in both the military and commercial arena. Handbook of Mobile Ad Hoc Networks for Mobility Models introduces 40 different major mobility models along with numerous associate mobility models to be used in a variety of MANET networking environments in the ground, air, space, and/or under water mobile vehicles and/or handheld devices. These vehicles include cars, armors, ships, under-sea vehicles, manned and unmanned airborne vehicles, spacecrafts and more. This handbook also describes how each mobility pattern affects the MANET performance from physical to application layer; such as throughput capacity, delay, jitter, packet loss and packet delivery ratio, longevity of route, route overhead, reliability, and survivability. Case studies, examples, and exercises are provided throughout the book. Handbook of Mobile Ad Hoc Networks for Mobility Models is for advanced-level students and researchers concentrating on electrical engineering and computer science within wireless technology. Industry professionals working in the areas of mobile ad hoc networks, communications engineering, military establishments engaged in communications engineering, equipment manufacturers who are designing radios, mobile wireless routers, wireless local area networks, and mobile ad hoc network equipment will find this book useful as well.

Download or read book Modeling and Performance Analysis of IP Traffic with Multi class QoS in Mobile Ad Hoc Networks written by Xuxia Zhong and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advanced Computing Networking and Security written by P. Santhi Thilagam and published by Springer. This book was released on 2012-04-02 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes revised selected papers from the International Conference on Advanced Computing, Networking and Security, ADCONS 2011, held in Surathkal, India, in December 2011. The 73 papers included in this book were carefully reviewed and selected from 289 submissions. The papers are organized in topical sections on distributed computing, image processing, pattern recognition, applied algorithms, wireless networking, sensor networks, network infrastructure, cryptography, Web security, and application security.

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 Man Machine Interactions 3 written by Dr. Aleksandra Gruca and published by Springer Science & Business Media. This book was released on 2013-10-01 with total page 639 pages. Available in PDF, EPUB and Kindle. Book excerpt: Man-Machine Interaction is an interdisciplinary field of research that covers many aspects of science focused on a human and machine in conjunction. Basic goal of the study is to improve and invent new ways of communication between users and computers, and many different subjects are involved to reach the long-term research objective of an intuitive, natural and multimodal way of interaction with machines. The rapid evolution of the methods by which humans interact with computers is observed nowadays and new approaches allow using computing technologies to support people on the daily basis, making computers more usable and receptive to the user's needs. This monograph is the third edition in the series and presents important ideas, current trends and innovations in the man-machine interactions area. The aim of this book is to introduce not only hardware and software interfacing concepts, but also to give insights into the related theoretical background. Reader is provided with a compilation of high-quality original papers covering a wide scope of research topics divided into eleven sections, namely: human-computer interactions, robot control, embedded and navigation systems, bio data analysis and mining, biomedical signal processing, image and sound processing, decision support and expert systems, rough and fuzzy systems, pattern recognition, algorithms and optimization, computer networks and mobile technologies and data management systems.

Download or read book Performance Analysis and Design of Mobile Ad hoc Networks written by Senni Perumal and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Performance Analysis of Mobile Ad hoc Routing Protocols by Varying Mobility Speed and Network Load written by Nilotpal Dev Sarmah and published by . This book was released on 2014 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the most promising network that has emerged from the technology world is the mobile ad-hoc network or MANET. It is a type of multi-hop network. Wireless by nature, MANETs do not have a specific network infrastructure. It is a collection of wireless mobile devices that communicate with each other without the help of any third party backbone like a base-station or a router. It can be hard to imagine how every node in this type of network communicate with one another without having a router. In MANETs, nodes change locations with time, configure themselves and get the information transmitted from source to destination without the help of any router or base station. Hence, for efficient data transmission, it is critical to understand the type of routing that is being used by these networks. Since they have no specific routers to handle these tasks, it can be a monumental task for the nodes to efficiently determine a path to forward and route their packets when they are at constant motion. This research makes a comprehensive performance analysis of the various mobile ad-hoc routing protocols. Over 160 simulation scenarios have been conducted and as many as 6 performance parameters are analyzed and compared in three different scales of network to make it a comprehensive analysis. Significant work is done in this area for more than a decade and researchers around the world have come up with a wide range of results. In this research, the results from previous work are taken into account for comparison and a wide analysis is made to carve out the most efficient routing algorithm under various mobility scenarios. All the major proactive and reactive routing protocols viz. Destination sequenced distance vector (DSDV), Optimized Link State Routing (OLSR), Dynamic Source Routing (DSR) and Ad-hoc On-demand Distance Vector (AODV) protocols are compared in three different phases - mobility, speed and network load. Simulation results show that dynamic source routing protocol (DSR) performs the best in small networks while ad-hoc on demand distance vector (AODV) routing protocol performs the best in medium and large networks. Although OLSR fails to cope with the level of AODV, it can be a superior protocol having demonstrated comparable performance to AODV and its proactive nature of routing packets.

Download or read book Performance Analysis of Local Computer Networks written by Joseph L. Hammond and published by Addison Wesley Publishing Company. This book was released on 1986 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the International Conference on Recent Cognizance in Wireless Communication Image Processing written by Nitin Afzalpulkar and published by Springer. This book was released on 2016-04-28 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume comprises the proceedings of the International Conference on Recent Cognizance in Wireless Communication & Image Processing. It brings together content from academicians, researchers, and industry experts in areas of Wireless Communication and Image Processing. The volume provides a snapshot of current progress in computational creativity and a glimpse of future possibilities. The proceedings include two kinds of paper submissions: (i) regular papers addressing foundation issues, describing original research on creative systems development and modeling; and (ii) position papers describing work-in-progress or research directions for computational creativity. This work will be useful to professionals and researchers working in the core areas of wireless communications and image processing.

Download or read book Mobile Ad hoc and Sensor Networks written by Liehuang Zhu and published by Springer. This book was released on 2018-03-27 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 13th International Conference on Mobile Ad-hoc and Sensor Networks, MSN 2017, held in Beijing, China, in December 2017. The 39 revised full papers presented were carefully reviewed and selected from 145 submissions. The papers address issues such as multi-hop wireless networks and wireless mesh networks; sensor and actuator networks; vehicle ad hoc networks; mobile social network; delay tolerant networks and opportunistic networking; cyber-physical systems; internet of things; system modeling and performance analysis; routing and network protocols; data transport and management in mobile networks; resource management and wireless QoS provisioning; security and privacy; cross layer design and optimization; novel applications and architectures.

Download or read book Distributed Computing and Internet Technology written by Manish Parashar and published by Springer. This book was released on 2008-12-12 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 5th International Conference on Distributed Computing and Internet Technology, ICDCIT 2008, held in New Delhi, India, in December 2008. The 12 revised full papers and 8 revised short papers presented were carefully reviewed and selected from 96 submissions. Featuring current research and results in theory, methodology and applications of Distributed Computing and Internet Technology, the papers are subdivided in topical sections on distributed systems and languages, data grid, security, mobile ad-hoc networks, distributed databases, Web applications, and P2P systems.