Congestion-aware Cross-layer Design for Wireless Ad Hoc Networks PDF Download
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Author: Ning Yang
Publisher:
ISBN:
Category :
Languages : en
Pages :
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ABSTRACT: To improve the performance for wireless networks, we implemented a congestion-aware cross-layer design in NS-2. The MAC layer adaptively selects a transmission data rate based on the channel signal strength information from physical layer and congestion information from network layer. The MAC layer utilization gathered at MAC layer is sent to DSR as a congestion aware routing metric for optimal route discovery. We modified the source codes of 802.11 MAC layer and DSR protocol. The simulations show that rate adaptation in MAC layer improves the network performance in terms of throughput, delivery ratio, and end-to-end delay; using congestion information from MAC layer in routing discovery improves the performance of the network benefited from overall network load balance.
Author: Ning Yang
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
ABSTRACT: To improve the performance for wireless networks, we implemented a congestion-aware cross-layer design in NS-2. The MAC layer adaptively selects a transmission data rate based on the channel signal strength information from physical layer and congestion information from network layer. The MAC layer utilization gathered at MAC layer is sent to DSR as a congestion aware routing metric for optimal route discovery. We modified the source codes of 802.11 MAC layer and DSR protocol. The simulations show that rate adaptation in MAC layer improves the network performance in terms of throughput, delivery ratio, and end-to-end delay; using congestion information from MAC layer in routing discovery improves the performance of the network benefited from overall network load balance.
Author: Bozidar Radunovic
Publisher:
ISBN:
Category :
Languages : en
Pages : 193
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Author: Stavros Toumpis
Publisher:
ISBN:
Category :
Languages : en
Pages : 119
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Author: Radhakrishna Maringanti
Publisher: Springer Science & Business
ISBN: 813221823X
Category : Technology & Engineering
Languages : en
Pages : 265
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Book Description
Wireless communication and sensor networks would form the backbone to create pervasive and ubiquitous environments that would have profound influence on the society and thus are important to the society. The wireless communication technologies and wireless sensor networks would encompass a wide range of domains such as HW devices such as motes, sensors and associated instrumentation, actuators, transmitters, receivers, antennas, etc., sensor network aspects such as topologies, routing algorithms, integration of heterogeneous network elements and topologies, designing RF devices and systems for energy efficiency and reliability etc. These sensor networks would provide opportunity to continuously and in a distributed manner monitor the environment and generate the necessary warnings and actions. However most of the developments have been demonstrated only in controlled and laboratory environments. So we are yet to see those powerful, ubiquitous applications for the benefit of the society. The conference and consequentially the proceedings would provide opportunity to the researchers to interact with other researchers and share their researches covering all the above areas. The proceedings of the conference thus covers the research work of different authors in the area of wireless sensor networks, wireless communications, devices, tools and techniques for WSN, and applications of wireless sensor networks. This book is beneficial for those researchers who are working in the area of wireless sensor networks, wireless communication, and developing applications of Wireless sensor networks.
Author: Wei Liu
Publisher:
ISBN:
Category : Computer networks
Languages : en
Pages :
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Book Description
The basic idea of Courtesy Piggybacking is to let high priority traffic help the low priority traffic by sharing the unused residual bandwidth. As a result, the scheme improves the overall performance for different prioritized services. Finally, we propose an energy efficient, reliable and scalable data dissemination scheme for wireless sensor networks. Based on supply chain management methodology, for each sensing task, the sensor field is conceptually partitioned into several functional areas, and then different routing schemes are applied in different areas. This scheme addresses energy-efficiency, reliability, and scalability at the same time.
Author: Symeon Papavassiliou
Publisher: Springer
ISBN: 3319196626
Category : Computers
Languages : en
Pages : 422
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Book Description
This book constitutes the proceedings of the 14th International Conference on Ad Hoc Networks and Wireless, ADHOC-NOW 2015, held in Athens, Greece in June/July 2015. The 25 full papers presented in this volume were carefully reviewed and selected from 52 submissions. The book also contains 3 full-paper invited talks. The contributions are organized in topical sections named: routing, connectivity, and resource allocation; localization, sensor deployment, and mobility management; distributed computing with mobile agents; efficient, reliable, and secure smart energy networks; and emerging communications, networking and computing technologies for VANETs 2.0.
Author: Rajamani Ganesh
Publisher: Springer Science & Business Media
ISBN: 0387230726
Category : Technology & Engineering
Languages : en
Pages : 327
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Book Description
Emerging Location Aware Broadband Wireless Ad Hoc Networks is a compilation of new material on wireless networking and technology addressing several technical challenges in the field. The contributions are authored by distinguished experts who presented experimental results on their work at the recent International Symposium on Personal, Indoor, Mobile, Radio Communications (PIMRC) held in Barcelona, Spain, September 5-8, 2004. The authors present new results on issues involving wireless LANs and ad hoc networks; mobile wireless internet and satellite applications; encoding, algorithms and performance; and issues related to overlay networks, cross layer interactions and smart antennas. Whether you’re a telecommunications/networking specialist, systems engineer or a scientist, Emerging Location Aware Broadband Wireless Ad Hoc Networks provides valuable insight from experts in wireless networking for developing wireless systems and meeting future application requirements.
Author: Leonidas Georgiadis
Publisher: Now Publishers Inc
ISBN: 1933019263
Category : Technology & Engineering
Languages : en
Pages : 161
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Book Description
Information flow in a telecommunication network is accomplished through the interaction of mechanisms at various design layers with the end goal of supporting the information exchange needs of the applications. In wireless networks in particular, the different layers interact in a nontrivial manner in order to support information transfer. In this text we will present abstract models that capture the cross-layer interaction from the physical to transport layer in wireless network architectures including cellular, ad-hoc and sensor networks as well as hybrid wireless-wireline. The model allows for arbitrary network topologies as well as traffic forwarding modes, including datagrams and virtual circuits. Furthermore the time varying nature of a wireless network, due either to fading channels or to changing connectivity due to mobility, is adequately captured in our model to allow for state dependent network control policies. Quantitative performance measures that capture the quality of service requirements in these systems depending on the supported applications are discussed, including throughput maximization, energy consumption minimization, rate utility function maximization as well as general performance functionals. Cross-layer control algorithms with optimal or suboptimal performance with respect to the above measures are presented and analyzed. A detailed exposition of the related analysis and design techniques is provided.
Author: Vivek Raghunathan
Publisher: ProQuest
ISBN: 9780549344728
Category :
Languages : en
Pages : 197
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Book Description
Our candidate stack uses traffic adaptive multipath routing to guide packets probabilistically around network bottlenecks, and automatically create interference-aware routes. Recognizing that theoretical arguments require a cross layer re-design of TCP taking wireless interference into account, our work suggests the use of in-network congestion control to automatically adapt flow rates inside the network.
Author: Yuan Xue
Publisher:
ISBN:
Category :
Languages : en
Pages : 134
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Book Description
