ad hoc wireless networks architectures and protocols ppt

... multi-hop wireless ad hoc networks,” in Ad Hoc Networking, pp 139–172, Addison-Wesley, Reading, Mass, USA, 2001 [3] T Camp, J Boleng, and V Davies, “A survey of mobility mod-els for ad hoc network ... C E Perkins and E M Royer, “The ad hoc on-demand distance vector protocol,” in Ad Hoc Networking, pp 173–219, Addison-Wesley, Reading, Mass, USA, 2001 [2] D B Johnson, D A Maltz, and J Broch, ... Study: The Impact of Random and Realistic Mobility Models on the Performance of Bypass-AODV in Ad Hoc Wireless Networks Ahed Alshanyour1and Uthman Baroudi2 Correspondence should be addressed to Uthman

Ngày tải lên: 21/06/2014, 11:20

... Table of Contents Wireless Sensor Networks—Architectures and Protocols Chapter 1 - Introduction to Wireless Sensor Networks Chapter2 - The Development of Wireless Sensor Networks Chapter 3 - ... Callaway, Edgar H 'Wireless sensor networks : architectures and protocols / Edgar H Callaway p em Includes bibliographical references and index 0-8493-1823-8 1 Sensor networks 2 Wireless LANs I ... few years, duplicating the recent explosion of wireless LANs Wireless Sensor Networks: Architectures and Protocols describes how to build these networks, from the layers of the communication

Ngày tải lên: 20/10/2022, 13:50

... view adhoc wireless networks as a special subset of wireless networks In fact, the adhoc radio technology and most of the MAC technology will be driven by theadvancements in infrastructure wireless ... characteristics of adhoc networks in more detail 1.1.2 Ad hoc Networks Characteristics Mobility: the fact that nodes can be rapidly repositioned and/or move is the raison d’etre of ad hoc networks Rapid ... and wireless de-vices may further add to the need for and the usage of ad hoc networks.During the last few years‚ numerous papers and reports have been published on various issues on mobile ad

Ngày tải lên: 01/06/2014, 00:31

... these protocols have been proposed for use in ad hoc networks These protocols are broadly classified into the two traditionalcategories: distance vector and link state In distance vector protocols, ... 19] and linkstate-based OSPF [40]) fall under this category However, these protocols arenot directly suitable for resource-poor and mobile ad hoc networks because oftheir high overheads and/or ... 65vector and link state protocols tailored for ad hoc networks Section 4 describesthree prominent on-demand protocols along with some generic optimizations.In Section 5, we compare proactive and reactive

Ngày tải lên: 14/08/2014, 13:20

... ordesigned specifically for ad hoc networks Most of these protocols attempt toadapt to the network dynamics in ad hoc networks The primary goal of adhoc multicasting protocols should be to construct/maintain ... protocols for ad hoc casting, both tree-based and mesh-based, do not make explicit efforts to takeadvantage of the broadcast nature of wireless medium In an ad hoc networkwith a shared wireless channel, ... to the receivers as possible In ad hoc networks, we want to adhere to thisrequirement as closely as possible because of the severe bandwidth limitations in ad hoc networking environments Similar

Ngày tải lên: 14/08/2014, 13:20

... Trang 1K Tang and M Gerla Random access MAC for efficient broadcast supportin ad hoc networks In Proc of IEEE WCNC 2000 P Mohapatra, J Li, and C Gui QoS in mobile ad hoc networks SpecialIssue ... losses In ad-hoc networks, in addition to congestion and random wirelesserrors, mobility serves as another primary contributor to losses perceived byconnections Random wireless errors are addressed ... Next-Generation Wireless Multimedia Communications Systems in IEEE Wireless Communications Magazine, June 2003 [34] [35] Trang 2TRANSPORT LAYER PROTOCOLS IN AD HOC NETWORKSAd-hoc networks, TCP

Ngày tải lên: 14/08/2014, 13:20

... Performance over Three Routing Protocols for Mobile Ad Hoc Networks ,” in Proceedings of ACM MOBIHOC 2001, Long Beach, CA, Oct 2001. J Liu and S Singh, “ATCP: TCP for Mobile Ad Hoc Networks,” in IEEE Journal ... as-sociated with communication in ad hoc networks and then discuss the use ofcommunication-time and idle-time energy conservation Trang 5Energy Consumption in Ad Hoc Networks 155In general there are ... G Holland and N H Vaidya, “Impact of Routing and Link layers on TCP Performance in Mobile Ad-hoc Networks,” in Proceedings of IEEE WCNC, New Orleans, September 1999. M Gerla, K Tang, and R Bagrodia,

Ngày tải lên: 14/08/2014, 13:20

... multi-hop wireless networks In 3rd ACM Internacommunica-tional Symposium on Mobile Ad Hoc Networking and Computing (MobiHoc), 2002. L Bao and J J Garcia-Luna-Aceves Topology management in ad hoc networks ... for mobile ad hoc networks Mobile Networks and Applications, 6(3):239–249, June 2001. L M Feeney A QoS aware power save protocol for wireless ad hoc networks In Mediterranean Ad Hoc Networking ... protocol for wireless ad hoc networks In IEEE INFO-COM, 2003. S Narayanaswamy, V Kawadia, R S Sreenivas, and P R Kumar Powercontrol in ad-hoc networks: Theory, architecture, algorithm and imple-

Ngày tải lên: 14/08/2014, 13:20

... antennas on theperformance of on-demand routing protocols (such as the Ad hoc On DemandDistance Vector Routing or the Dynamic Source Routing [9]) On-demand routing protocols are based on searching ... these antennas can in fact cause a degradation inperformance 7.5 Broadcast with Directional Antennas In mobile ad hoc networks, it is often required to send a broadcast packet to all nodes in the ... two sources and and these nodes want to establishconnections with nodes and respectively For the connection from node to node two distinct routes are feasible The first is via nodes andand the second

Ngày tải lên: 14/08/2014, 13:20

... Ariadne: A secure on-demand routing protocol for ad hoc networks. .. fairness in dynamic ad- hoc networks In Proceedings of the IEEE/ACM Workshop on Mobile Ad Hoc Networking and ... an ad-hoc network, either this functionality needs to be performed distributedly or other changes need to be made to these protocols to use them in ad-hoc networks. 246 QoS Issues in Ad-hoc Networks ... Johnson, and A Perrig SEAD: secure efficient distance vector routing for mobile wireless ad hoc networks Ad Hoc Networks, 1(1): 175– 192, July 2003 [18] Y Hu, A Perrig, and D Johnson

Ngày tải lên: 14/08/2014, 13:20

... mobile ad hoc networks, data is transmitted continu-ously and randomly so mobile device has to wake up to listen to the channel Therefore, unlike mobile ad hoc networks, the MAC design for sensor networks ... these papers are designed for mobile ad hoc networks but not sensor networks Unlike sensor networks, bat-tery constraint is not a major issue of mobile ad hoc networks Therefore, only few papers ... applications, wireless sensor networks still face a number of challenges due to their particular characteristics that other wireless networks, like cellular networks or mobile ad hoc net-works

Ngày tải lên: 14/12/2017, 17:47

... Abstract: Broadcasting is a common and basic operation used to support various network protocols in wireless networks To achieve energy-efficient broadcasting is especially important for ad hoc wireless ... Broadcasting in Ad Hoc Wireless Sensor Networks Naixue Xiong 1,2 , Xingbo Huang 3 , Hongju Cheng 3, * and Zheng Wan 1 1 School of Information Technology, Jiangxi University of Finance and ... of ad hoc wireless sensor networks, which consist of a large number of sensing devices that are capable of sensing, processing and transmitting environmental information The wireless sensor networks

Ngày tải lên: 02/11/2022, 09:22

... recent advances of architectures, methodologies andapplications of artificial neural networks The book consists of two parts: architectures andapplications The architecture part covers architectures, ... recent advances and applications of artificialneural networks in a wide variety of areas The target audience of this book includesprofessors, college students, graduate students, and engineers and ... hidden units, and C output units w 1 andw 2 are the synaptic weight matrices between input and hidden layers and between hidden and output layers, respectively The “extra” neurons in input and hidden

Ngày tải lên: 15/03/2014, 23:20

... cellular networks, have to be enforced in a distributed and collabora-tive fashion by the nodes in wireless ad hoc networks [3,4] Numerous MAC schemes have been proposed for wireless ad hoc networks, ... sublayer for WLANs as well as wireless ad hoc networks IEEE 802.11 is based on MACA [6] and MACAW [7] Nevertheless, IEEE 802.11 is designed for WLANs and wireless ad hoc networks with omnidirectional ... Research Article On Wireless Ad Hoc Networks with Directional Antennas: Efficient Collision and Deafness Avoidance Mechanisms Yihu Li and Ahmed Safwat Laboratory for Advanced Wireless Networks, Department

Ngày tải lên: 21/06/2014, 23:20

... formattedPDF and full text (HTML) versions will be made available soon. Decentralized estimation over orthogonal multiple- access fading channels in wireless sensor networks optimal and suboptimal ... estimation over orthogonal access fading channels in wireless sensor networks— optimal and suboptimal estimatorsmultiple-Xin Wang∗1 and Chenyang Yang1 1 School of Electronics and Information Engineering, ... known and unknown CSI and their special cases, and Section 4 introduces the suboptimalestimator In Section 5, we analyze the asymptotic performance and complexity of the presented MLEs anddiscuss

Ngày tải lên: 20/06/2014, 04:20

... MAC protocols in ad hoc networks Research efforts in the field of access mechanisms for single-channel ad hoc networks have been extensive For example, a multiplicity of single-channel MAC protocols ... analysis of multi-channel MAC protocols in ad hoc networks Jari Nieminen*and Riku Jäntti Abstract Since delay and throughput are important Quality of Service parameters in many wireless applications, ... multi-channel MAC protocols have not been studied yet in case of Poisson arrivals and infinite number of users Contention-based multi-channel MAC protocols designed for ad hoc networks can be divided

Ngày tải lên: 20/06/2014, 22:20

... roaming and IP handoff, and cluster crea-tion, splitting and merging Especially, in wireless sensor networks, observer nodes should be equipped with addi-tional computaaddi-tional, energy, and communication ... special attention to Mobile Ad hoc and Sensor Networks (MASNets) The inherent characteristics of these networks, including the broad-cast and unreliable nature of links, and the absence of infrastructure, ... framework for digital investigation in wireless networks, especially sensor and ad hoc networks, turns out to be more tricky and challenging than in wireline networks To do so, a set of requirements

Ngày tải lên: 21/06/2014, 02:20

... media streaming over wired networks has been exploited for a long history [7] Nowadays, as the rapid development of multihop wireless networks such as wireless mesh networks [1], proxy caching ... F Akyildiz, X Wang, and W Wang, “Wireless mesh networks: a survey,” Computer Networks, vol 47, no 4, pp. 445–487, 2005 [2] M Conti and S Giordano, “Multihop ad hoc networking: the reality,” IEEE ... IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks (SECON ’09), pp 1–9, June 2009 [7] J Liu and J Xu, “Proxy caching for media streaming over the internet,”

Ngày tải lên: 21/06/2014, 17:20

... strategy that takes advantage of broadcast nature of wireless networks, forms virtual MIMO system, and provides diversity gains In this paper, wireless video transmission protocols are proposed, ... Allocation for Cooperative Video Transmission Protocols over Wireless Networks Zhu Han,1Guan-Ming Su,2Haohong Wang,3Song Ci,4and Weifeng Su5 1 Electrical and Computer Engineering Department, University ... With the advancement in video coding technology, transmitting real-time encoded video programs over wireless networks has become a promising service for applications such as video-on-demand and interactive

Ngày tải lên: 21/06/2014, 20:20

... Article Cross Layer PHY-MAC Protocol for Wireless Static and Mobile Ad Hoc Networks Sylwia Romaszko and Chris Blondia Interdisciplinary Institute for Broadband Technology, University of Antwerp, ... DCF standard obtained by the basic power control protocol in the static network and the SNAPdMac protocol in both static and mobile networks Note that, thanks to PHY (power level adjustment) and ... power for each transmission and that the network is homogeneous However, nowadays wireless nodes, such as laptops, personal digital assistants (PDAs), and other handheld units, are usually equipped

Ngày tải lên: 21/06/2014, 22:20