A Cross Layer Routing Protocol for OFDMA Based Mobile Ad Hoc Networks PDF Download
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Author: Hong Yi Xiong
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Hong Yi Xiong
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Anita Yadav
Publisher: GRIN Verlag
ISBN: 3346132161
Category : Computers
Languages : en
Pages : 142
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Doctoral Thesis / Dissertation from the year 2016 in the subject Computer Science - Miscellaneous, grade: 16, , language: English, abstract: In this thesis, we have modified AODV routing protocol by incorporating link prediction algorithm using a proposed link prediction model. This algorithm predicts the link availability time and even before the link breaks; either it repairs the route locally or sends information to the source nodes to enable them to initiate a new route search well in time. This algorithm improves the quality of service of the network. Simulation results show that AODV routing algorithm with link availability model performs better than the existing AODV. Advances in wireless technology and hand-held computing devices have brought revolution in the area of mobile communication. The increasing mobility of humans across the globe generated demand for infrastructure-less and quickly deployable mobile networks. Such networks are referred to as Mobile Adhoc Networks (MANET). Usually, nodes in a MANET also act as a router while being is free to roam while communicating each others. Adhoc networks are suited for use in situations where infrastructure is unavailable or to deploy one is not cost-effective. Frequent changes in network topology due to mobility and limited battery power of the mobile devices are the key challenges in the adhoc networks. The depletion of power source may cause early unavailability of nodes and thus links in the network. The mobility of nodes will also causes frequent routes breaks and adversely affects the required performance for the applications. Availability of a route in future mainly depends on the availability of links between the nodes forming the route. Therefore, it is important to predict the future availability of a link that is currently available. We have proposed an analytical model for link prediction using Newton divided difference method. This link availability algorithm is incorporated in AODV routing algorithm (AODVLP) to evaluate the performance of AODV routing protocol using the metrics viz. delivery rate, average end-to-end delay, average RTS collisions per node and route failure. In the existing AODV protocol, packets are routed until a link in the existing path fails. This results in degradation of quality of service of network in terms of end-to-end delay and delivery ratio.
Author: Mohamed Ibnkahla
Publisher: CRC Press
ISBN: 135183570X
Category : Technology & Engineering
Languages : en
Pages : 428
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Adaptive techniques play a key role in modern wireless communication systems. The concept of adaptation is emphasized in the Adaptation in Wireless Communications Series through a unified framework across all layers of the wireless protocol stack ranging from the physical layer to the application layer, and from cellular systems to next-generation wireless networks. Adaptation and Cross Layer Design in Wireless Networks is devoted to adaptation in the data link layer, network layer, and application layer. The book presents state-of-the-art adaptation techniques and methodologies, including cross-layer adaptation, joint signal processing, coding and networking, selfishness in mobile ad hoc networks, cooperative and opportunistic protocols, adaptation techniques for multimedia support, self –organizing routing, and tunable security services. It presents several new theoretical paradigms and analytical findings which are supported with various simulation and experimental results. Adaptation in wireless communications is needed in order to achieve high capacity and ubiquitous communications. The current trend in wireless communication systems is to make adaptation dependent upon the state of the relevant parameters in all layers of the system. Focusing on simplified cross layer design approaches, this volume describes advanced techniques such as adaptive resource management, adaptive modulation and coding, 4G communications, QoS, diversity combining, and energy and mobility aware MAC protocols. The first volume in the series, Adaptive Signal Processing in Wireless Communications (cat no.46012) covers adaptive signal processing at the physical layer.
Author: Nehaben Patel
Publisher:
ISBN:
Category : Ad hoc networks (Computer networks)
Languages : en
Pages : 92
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Author: Meenakshi Venkataraman
Publisher:
ISBN:
Category :
Languages : en
Pages : 156
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Communication in ad hoc networks traditionally relies on network addresses known a priori. This work addresses the need for application-aware adaptive communication that creates network routes based on applications’ dynamic resource requests. We motivate this need by examining the state of the art in mobile ad hoc network communication, the requirements of applications, and the impact of existing protocols on flexibility and efficiency. We introduce an intuitive generalization to source routing which facilitates discovery of a resource in an ad hoc network and the creation and maintenance of a route from the requesting host to the discovered destination. We thus eliminate the requirement that existing routing protocols be coupled with a name or resource resolution protocol, instead favoring an entirely reactive approach to accommodate significant degrees of mobility and uncertainty. We present an initial implementation, a performance evaluation, and a comparison to existing alternatives.
Author: Hui Xu
Publisher:
ISBN:
Category :
Languages : en
Pages : 270
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Author: Yu Wang
Publisher:
ISBN:
Category : Computer algorithms
Languages : en
Pages : 386
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Author: G Ram Mohana Reddy
Publisher: CRC Press
ISBN: 1315351633
Category : Computers
Languages : en
Pages : 139
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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.
Author: Mohammad Tarique
Publisher:
ISBN:
Category :
Languages : en
Pages : 280
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Author: Khaled Daabaj
Publisher:
ISBN: 9789533071732
Category :
Languages : en
Pages :
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