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Book Effective Medium Access Control for Underwater Acoustic Sensor Networks

Download or read book Effective Medium Access Control for Underwater Acoustic Sensor Networks written by Wael Gorma and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Underwater Acoustic Sensor Networks

Download or read book Underwater Acoustic Sensor Networks written by Yang Xiao and published by CRC Press. This book was released on 2010-05-19 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: A detailed review of underwater channel characteristics, Underwater Acoustic Sensor Networks investigates the fundamental aspects of underwater communication. Prominent researchers from around the world consider contemporary challenges in the development of underwater acoustic sensor networks (UW-ASNs) and introduce a cross-layer approach for effec

Book Underwater Acoustic Sensor Networks

Download or read book Underwater Acoustic Sensor Networks written by Peng Xie and published by . This book was released on 2007 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Energy Efficient Underwater Wireless Communications and Networking

Download or read book Energy Efficient Underwater Wireless Communications and Networking written by Goyal, Nitin and published by IGI Global. This book was released on 2020-09-04 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: Underwater wireless sensor networks (UWSN) are envisioned as an aquatic medium for a variety of applications including oceanographic data collection, disaster management or prevention, assisted navigation, attack protection, and pollution monitoring. Similar to terrestrial wireless sensor networks (WSN), UWSNs consist of sensor nodes that collect the information and pass it to a base station; however, researchers have to face many challenges in executing the network in an aquatic medium. Energy-Efficient Underwater Wireless Communications and Networking is a crucial reference source that covers existing and future possibilities of the area as well as the current challenges presented in the implementation of underwater sensor networks. While highlighting topics such as digital signal processing, underwater localization, and acoustic channel modeling, this publication is ideally designed for machine learning experts, IT specialists, government agencies, oceanic engineers, communication experts, researchers, academicians, students, and environmental agencies concerned with optimized data flow in communication network, securing assets, and mitigating security attacks.

Book Stochastic Medium Access Control for Underwater Acoustic Sensor Networks

Download or read book Stochastic Medium Access Control for Underwater Acoustic Sensor Networks written by Yu Han and published by . This book was released on 2016 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: Underwater sensor networks (UWSNs), the enabling technology for a broad range of aquatic applications, rely on acoustic communication for long-range transmissions. However, underwater acoustic communication suffers from several adverse features, such as long propagation delay and low bandwidth, making the networking design for UWSNs much more challenging than their terrestrial counterparts. Medium access control (MAC), a crucial component in networking design, coordinates among multiple agents that share the same channel resource and is responsible to schedule packet transmissions efficiently and fairly. However, due to the long propagation delay, the traditional handshaking-based random-access MAC protocols are not channel efficient for UWSNs. In this dissertation, we address the inefficiency issues in random-access MAC for UWSNs, using a stochastic sending probability-based approach. We propose three handshaking-free underwater MAC solutions targeting the same goal: high network throughput, low packet end-to-end delay, and robustness under dynamics and controlled implementation complexity. The three solutions are based on a common utility-based probability optimization framework, but with different design considerations and objective functions. We first leverage the feature of long propagation delay, often taken as negative, to improve the parallelism between multiple senders. Our proposed protocol, the Delay-Aware Probability-based underwater MAC protocol (DAP-MAC), characterizes the group compatibility relation, a proposed indicator for successful concurrent transmissions, and utilizes this relation in the stochastic optimization framework for the best transmission strategy. The drawback of DAP-MAC is it requires long time slots to accommodate concurrent transmissions. We reduce the slot size and explicitly resolve the unique spatial-temporal uncertainty issue in UWSNs in our proposed protocol, the Traffic-Adaptive Receiver-Synchronized underwater MAC protocol (TARS). In TARS, we consider the data queue status and design the throughput-optimal transmission strategy to be traffic adaptive, which is very suitable for mobile and traffic-varying UWSNs. Simulation results show that TARS achieves the highest throughput and lowest packet delay among the typical representative MACs (about 13% ∼ 146% higher in throughput and 13% ∼ 21% lower in delay than others in a mobile ad hoc network). For further throughput improvement, we consider the capture effect and proactively create power capture at the receivers in our proposed protocol, the Stochastic MAC protocol with Randomized Power control (SMARP). We design a randomized power control scheme based on the non-negligible difference in acoustic propagation attenuation, and include the capture success probability in the stochastic optimization framework. Simulation results show that SMARP yields better throughput and packet delay than TARS and other representative MACs (about 23% ∼ 240% higher in throughput and 27% ∼ 60% lower in delay than others in a mobile ad hoc network). Finally, toward the development of wireless networking for enabling marine observatory capabilities at the Northeastern University Marine Science Center, we implement the TARS protocol on our testbed. We conduct in-tank underwater experiments and evaluate the performance of the TARS protocol under a three-node single-hop network. Experimental results show that TARS achieves the highest packet delivery ratio with controlled low packet end-to-end delay than other representative handshaking-free underwater MAC protocols, and is very suitable for the actual implementation in UWSNs.

Book Mobile Ad Hoc Networking

Download or read book Mobile Ad Hoc Networking written by Stefano Basagni and published by John Wiley & Sons. This book was released on 2013-02-07 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt: "An excellent book for those who are interested in learning the current status of research and development . . . [and] who want to get a comprehensive overview of the current state-of-the-art." —E-Streams This book provides up-to-date information on research and development in the rapidly growing area of networks based on the multihop ad hoc networking paradigm. It reviews all classes of networks that have successfully adopted this paradigm, pointing out how they penetrated the mass market and sparked breakthrough research. Covering both physical issues and applications, Mobile Ad Hoc Networking: Cutting Edge Directions offers useful tools for professionals and researchers in diverse areas wishing to learn about the latest trends in sensor, actuator, and robot networking, mesh networks, delay tolerant and opportunistic networking, and vehicular networks. Chapter coverage includes: Multihop ad hoc networking Enabling technologies and standards for mobile multihop wireless networking Resource optimization in multiradio multichannel wireless mesh networks QoS in mesh networks Routing and data dissemination in opportunistic networks Task farming in crowd computing Mobility models, topology, and simulations in VANET MAC protocols for VANET Wireless sensor networks with energy harvesting nodes Robot-assisted wireless sensor networks: recent applications and future challenges Advances in underwater acoustic networking Security in wireless ad hoc networks Mobile Ad Hoc Networking will appeal to researchers, developers, and students interested in computer science, electrical engineering, and telecommunications.

Book A MAC Protocol for Ad hoc Underwater Acoustic Sensor Networks

Download or read book A MAC Protocol for Ad hoc Underwater Acoustic Sensor Networks written by Borja Peleato and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A medium access control (MAC) protocol is proposed that is suitable for non-synchronized ad-hoc networks, and in particular for the energy-constrained underwater acoustic networks which are characterized by long propagation delays. The protocol exploits the difference in the link lengths between the nodes instead of waiting times proportional to the maximal link length. To do so, it relies on a receiver's ability to tolerate a certain level of interference. By minimizing the length of the hand-shake procedure preceeding the data transmission, the throughput efficiency is increased as compared to the previously proposed protocols, while collision avoidance minimizes the energy consumption.

Book Efficient Communication Protocols for Underwater Acoustic Sensor Networks

Download or read book Efficient Communication Protocols for Underwater Acoustic Sensor Networks written by Dario Pompili and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Underwater sensor networks find applications in oceanographic data collection, pollution monitoring, offshore exploration, disaster prevention, assisted navigation, tactical surveillance, and mine reconnaissance. The enabling technology for these applications is acoustic wireless networking. UnderWater Acoustic Sensor Networks (UW-ASNs) consist of sensors and Autonomous Underwater Vehicles (AUVs) deployed to perform collaborative monitoring tasks. The objective of this research is to explore fundamental key aspects of underwater acoustic communications, propose communication architectures for UW-ASNs, and develop efficient sensor communication protocols tailored for the underwater environment. Specifically, different deployment strategies for UW-ASNs are studied, and statistical deployment analysis for different architectures is provided. Moreover, a model characterizing the underwater acoustic channel utilization efficiency is introduced. The model allows setting the optimal packet size for underwater communications. Two distributed routing algorithms are proposed for delay-insensitive and delay-sensitive applications. The proposed routing solutions allow each node to select its next hop, with the objective of minimizing the energy consumption taking the different application requirements into account. In addition, a resilient routing solution to guarantee survivability of the network to node and link failures in long-term monitoring missions is developed. Moreover, a distributed Medium Access Control (MAC) protocol for UW-ASNs is proposed. It is a transmitter-based code division multiple access scheme that incorporates a novel closed-loop distributed algorithm to set the optimal transmit power and code length. It aims at achieving high network throughput, low channel access delay, and low energy consumption. Finally, an efficient cross-layer communication solution tailored for multimedia traffic (i.e., video and audio streams, still images, and scalar sensor data) is introduced.

Book Underwater Acoustic Networking Techniques

Download or read book Underwater Acoustic Networking Techniques written by Roald Otnes and published by Springer Science & Business Media. This book was released on 2012-01-19 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: This literature study presents an overview of underwater acoustic networking. It provides a background and describes the state of the art of all networking facets that are relevant for underwater applications. This report serves both as an introduction to the subject and as a summary of existing protocols, providing support and inspiration for the development of network architectures.

Book Energy Efficient Reconfigurable MAC Protocol for Underwater Acoustic Sensor Network

Download or read book Energy Efficient Reconfigurable MAC Protocol for Underwater Acoustic Sensor Network written by Khaja Mohammad Shazzad and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Energy Efficient Medium Access Control for Wireless Sensor Networks

Download or read book Energy Efficient Medium Access Control for Wireless Sensor Networks written by Amre El-Hoiydi and published by . This book was released on 2005 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Energy Efficient Underwater Acoustic Sensor Networks

Download or read book Energy Efficient Underwater Acoustic Sensor Networks written by Chaima Zidi and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: UnderWaterAcoustic Sensor Networks (UW-ASNs) are the newest technological achievement in terms of communication. Composed of a set of communicating underwater sensors, UW-ASNs are intended to observe and explore lakes, rivers, seas and oceans. Recently, they have been subject to a special attention due to their great potential in terms of promising applications in various domains (military, environmental, scientific...) and to the new scientific issues they raise. A great challenging issue in UW-ASNs is the fast energy depletion since high power is needed for acoustic communication while sensors battery budget is limited. Hence, energy-efficient networking protocols are of a paramount importance to make judicious use of the available energy budget while considering the distinguishing underwater environment characteristics. In this context, this thesis aims at studying the main challenging underwater acoustic sensors characteristics to design energy-efficient communication protocols specifically at the routing and MAC layers. First, we address the problem of energy holes in UW-ASNs. The sink-hole problem occurs when the closest nodes to sink drain their energy faster due to their heavier load. Indeed, those sensors especially the ones that are 1-hop away from the static sink act as relays to it on behalf of all other sensors, thus suffering from severe energy depletion. In particular, at the routing layer, we propose to distribute the transmission load at each sensor among several potential neighbors, assuming that sensors can adjust their communication range among two levels when they send or forward data. Specifically, we determine for each sensor the set of next hops with the associated load weights that lead to a fair energy depletion among all sensors in the network. Then, we extend our balanced routing strategy by assuming that each sensor node is not only able to adjust its transmission power to 2 levels but eventually up to n levels where n > 2. Consequently, at the routing layer, for each possible value of n, we determine for each sensor the set of possible next hops with the associated load weights that lead to a fair energy consumption among all sensors in the network. Moreover, we derive the optimal number of transmission powers n that balances the energy consumption among all sensors for each network configuration. In addition to that, it is worth pointing out that our extended routing protocol uses a more realistic time varying channel model that takes into account most of the fundamental characteristics of the underwater acoustic propagation. Analytical results show that further energy saving is achieved by our extended routing scheme. Second, to mitigate the dramatic collision impacts, we design a collision avoidance energy efficient multichannel MAC protocol (MC-UWMAC) for UW-ASNs. MC-UWMAC operates on single slotted control and a set of equal-bandwidth data channels. Control channel slots are dedicated to RTS/CTS handshaking allowing a communicating node pair to agree on the start time of communication on a pre-allocated data channel. In this thesis, we propose two novel coupled slot assignment and data channels allocation procedures without requiring any extra negotiation overhead. Accordingly, each node can initiate RTS/CTS exchange only at its assigned slot calculated using a slot allocation procedure based on a grid virtual partition of the deployment area. Moreover, for each communicating pair of nodes, one data channel is allocated using a channel allocation procedure based on our newly designed concept of singleton- intersecting quorum. Accordingly, each pair of communicating nodes will have at their disposal a unique 2-hop conflict free data channel. Compared with existing MAC protocol, MC-UWMAC reduces experienced collisions and improves network throughput while minimizing energy consumption.

Book Cognitive Underwater Acoustic Networking Techniques

Download or read book Cognitive Underwater Acoustic Networking Techniques written by Dimitri Sotnik and published by Springer Nature. This book was released on 2020-09-29 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the latest research on cognitive network-layer methods and smart adaptive physical-layer methods in underwater networks. Underwater communication requires extendable and delay-tolerant underwater acoustic networks capable of supporting multiple frequency bands, data rates and transmission ranges. The book also discusses a suitable foreground communication stack for mixed mobile/static networks, a technology that requires adaptive physical layer waveforms and cognitive network strategies with underlying cooperative and non-cooperative robust processes. The goal is to arrive at a universally applicable standard in the area of Underwater Internet-of-Things [ISO/IEC 30140, 30142, 30143]. The book is the second spin-off of the research project RACUN, after the first RACUN-book "Underwater Acoustic Networking Techniques" (https://link.springer.com/book/10.1007%2F978-3-642-25224-2)