Transport layer in ad hoc and sensor networks
Transport layer in ad hoc and sensor networks
... to inherent fading properties of wireless channels Transport Layer in ad- hoc and sensor networks Problems in Wireless Networks Route Instability Leads to OOO packets Transport Layer in ad- hoc ... HTTP response FIN ACK FIN ACK Connection Termination Transport Layer in ad- hoc and sensor networks TCP Mechanisms Sliding Window Offered Window (advertised by receiver) Sent and ack received ... application transport transport transport network network link link link physical physical physical FH BS rxmt wireless network MH Transport Layer in ad- hoc and sensor networks Approaches Link level...
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báo cáo hóa học: " Formal reconstruction of attack scenarios in mobile ad hoc and sensor networks" ppt
... in mobile computing, industry, and academia have granted a special attention to Mobile Ad hoc and Sensor Networks (MASNets) The inherent characteristics of these networks, including the broadcast ... digital investigation of security attacks in the context of mobile ad hoc and sensor networks, which is composed of four main steps In the first step, the node in charge of investigation starts ... First, attacks are mobile, meaning that during an attack scenario, the attacker can change its identity, position, location, and point of access Using a formal model of digital investigation in wireless...
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Báo cáo hóa học: " Editorial Cooperative Localization in Wireless Ad Hoc and Sensor Networks" pdf
... two papers address the problem of localizing and tracking objects using a WSN In particular, the paper Localization capability of cooperative anti-intruder radar systems” by E Paolini et al considers ... position themselves without injecting network traffic UWB is a promising technology for accurate localization in harsh environments and it is specifically addressed in the following two papers The first ... time-based algorithm for positioning mobile terminals in wireless networks” by I Martin-Escalona and F Barcelo-Arroyo, a hybrid localization technique is proposed The positioning algorithm, named time...
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Topology Control in Wireless Ad Hoc and Sensor Networks phần 1 doc
... 88 91 91 93 10 1 10 1 10 5 10 6 10 6 10 8 10 8 11 1 11 3 11 6 11 7 11 8 11 9 12 3 12 4 12 5 12 8 12 9 13 0 13 6 13 7 14 0 14 7 14 8 14 9 15 0 15 4 15 6 16 4 16 5 16 7 16 8 17 0 17 1 17 2 17 4 17 5 17 5 17 9 18 0 18 1 18 5 LIST OF ... 8 .1 8.2 8.3 8.4 9 .1 9.2 10 .1 10.2 10 .3 10 .4 10 .5 10 .6 10 .7 11 .1 11. 2 11 .3 11 .4 11 .5 11 .6 11 .7 12 .1 12.2 12 .3 12 .4 12 .5 12 .6 13 .1 13.2 13 .3 13 .4 13 .5 13 .6 14 .1 14.2 14 .3 14 .4 14 .5 14 .6 14 .7 14 .8 ... 10 3 10 3 10 4 10 5 10 7 10 9 11 0 11 0 11 2 11 4 11 Direction-based Topology Control 11 .1 The CBTC Protocol 11 .1. 1 The basic CBTC protocol 11 .1. 2 Dealing with asymmetric links 11 .1. 3...
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Topology Control in Wireless Ad Hoc and Sensor Networks phần 2 pps
... earthquake has Topology Control in Wireless Ad Hoc and Sensor Networks P Santi 20 05 John Wiley & Sons, Ltd AD HOC AND SENSOR NETWORKS devastated the city of Futuria destroying, among other things, most ... and the main challenges that face the ad hoc/ sensor network designer 1 .2. 1 Ad hoc networks Wireless ad hoc networks have attracted the attention of researchers in academia and industry in the last ... reflection, diffraction and scattering Reflection occurs Topology Control in Wireless Ad Hoc and Sensor Networks P Santi 20 05 John Wiley & Sons, Ltd 14 MODELING AD HOC NETWORKS when the electromagnetic...
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Topology Control in Wireless Ad Hoc and Sensor Networks phần 3 pot
... identified yet In our view, topology control is an additional protocol layer positioned between the routing and MAC layer (see Figure 3. 5) 3. 4.1 Topology control and routing The routing layer is ... if Routing layer Topology control layer MAC layer Figure 3. 5 Topology control in the protocol stack 34 TOPOLOGY CONTROL Routing layer Trigger TC execution Trigger route updates Topology control ... agreement in the community that reactive routing performs better than proactive routing in ad hoc networks TOPOLOGY CONTROL 35 v u d2 d1 z w d3 Figure 3. 7 The importance of appropriately setting the...
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Topology Control in Wireless Ad Hoc and Sensor Networks phần 4 pot
... 0.5 642 3 0 .41 203 0.33 644 0.2 945 4 0.26526 0.19761 0.15955 0.13963 0.12708 0.0 948 2 0.61625 0 .44 705 0.33892 0.28179 0.25736 0.17163 0.12728 0.10507 0.08931 0.05963 0. 642 26 0 .46 285 0. 344 04 0.280 54 0.2395 ... where ‘minimal’ is intended as ‘least energy cost’ Besides Topology Control in Wireless Ad Hoc and Sensor Networks P Santi 2005 John Wiley & Sons, Ltd 74 THE RANGE ASSIGNMENT PROBLEM reducing energy ... at least k different paths, instead of along at least one single Topology Control in Wireless Ad Hoc and Sensor Networks P Santi 2005 John Wiley & Sons, Ltd 64 OTHER CHARACTERIZATIONS OF THE...
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Topology Control in Wireless Ad Hoc and Sensor Networks phần 6 potx
... ‘every direction’ Topology Control in Wireless Ad Hoc and Sensor Networks P Santi 2005 John Wiley & Sons, Ltd 1 16 DIRECTION-BASED TOPOLOGY CONTROL w u r v z Figure 11.1 Intuition behind the CBTC ... neighbor Topology Control in Wireless Ad Hoc and Sensor Networks P Santi 2005 John Wiley & Sons, Ltd 128 NEIGHBOR-BASED TOPOLOGY CONTROL Figure 12.1 Example of node placement generating asymmetric ... algorithm introduced in (Hajiaghayi et al 2003) and the k-connected variation of CBTC introduced in (Bahramgiri et al 2002) 11 Direction-based Topology Control In this chapter, we consider topology control...
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Topology Control in Wireless Ad Hoc and Sensor Networks phần 7 pptx
... each node in N LMST (u), and by removing the link (or adding the reverse link) in case it is unidirectional In our example, we assume that the generated topology is made symmetric by removing unidirectional ... of Topology Control 14 Level-based Topology Control In Chapters 10–12, we have presented several solutions to the problem of designing protocols for distributed topology control TC in ad hoc networks ... as by the battery level, and so on In other words, contrary to what is assumed in most of the TC approaches proposed so Topology Control in Wireless Ad Hoc and Sensor Networks P Santi 2005 John...
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Topology Control in Wireless Ad Hoc and Sensor Networks phần 8 ppsx
... (2004) introduce the notion of edge coverage to model radio interference in ad hoc/ sensor networks Edge coverage is formally defined as follows: Topology Control in Wireless Ad Hoc and Sensor Networks ... for Interference In Chapter 3, we have discussed the potential advantages of using TC techniques in wireless ad hoc and sensor networks: reducing node energy consumption and reducing radio interference ... of ad hoc network properties so far derived in the literature turn out to be scarcely useful in practice and that a radio model that accounts for shadowing/fading effects should be used instead...
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Topology Control in Wireless Ad Hoc and Sensor Networks phần 10 doc
... and broadcasting in wireless ad hoc networks IEEE Transactions on Parallel and Distributed Systems 15(12), 105 7– 106 9 Liang W 2002 Constructing minimum-energy broadcast trees in wireless ad hoc ... Issues in Ad Hoc Networks and Sensor Networks (DIWANS), Florence Topology Control in Wireless Ad Hoc and Sensor Networks P Santi 2005 John Wiley & Sons, Ltd 242 REFERENCES Bettstetter C and Krause ... in mobile ad hoc networks Proc IFIP Conference on Security, Communications and Multimedia, Washington, DC Moaveni-Nejad K and Li X 2005 Low-interference topology control for wireless ad hoc networks...
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Báo cáo toán học: " Localization in mobile wireless and sensor networks" pot
... Nicoli et al.: Localization in mobile wireless and sensor networks EURASIP Journal on Wireless Communications and Networking 2011 2011:197 Submit your manuscript to a journal and benefit from: ... that the localization problem is solvable in linear time, and it is possible to reduce the required number of sensing links The next group of articles shifts the focus on localization in indoor ... consisting of a number of sensor nodes with low-bandwidth communications In the second article, decentralized localization of an acoustic source is studied in a sensor network based on the underlying...
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Báo cáo hóa học: " Energy-Aware Routing Protocol for Ad Hoc Wireless Sensor Networks" pdf
... part of ad hoc wireless sensor networks EARP is well suited for sensor networks due to its ability to adapt to the environment and make routing decisions based on the Energy-Aware Routing Protocol ... efficiency in routing protocols for wireless ad hoc sensor networks He presented some of his work at IEEE GLOBECOM ‘04 He was awarded the Outstanding MS Student Award by Wichita State University for his ... section, the proposed energy-aware routing protocol (EARP) is presented and its energy efficiency is compared with that of the ad hoc on-demand distancevector (AODV) routing protocol the network...
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Báo cáo hóa học: " Research Article A Simulation Study: The Impact of Random and Realistic Mobility Models on the Performance of Bypass-AODV in Ad Hoc Wireless Networks" pdf
... Impact of Vehicular Mobility Models on Bypass-AODV Vehicular mobility models, FRW and MAN, are adopted to evaluate the performance of Bypass-AODV and then to compare it with AODV Initially, the ... the impact of each mobility model on the performance of the Bypass-AODV as well as the original AODV (1) The routing overhead ratio is the ratio of the amount in bytes of control packets transmitted ... statistical analysis of the long-run node spatial distribution in mobile ad hoc networks,” in Proceedings of the ACM International Workshop on Modeling, Analysis and Simulation of Wireless and Mobile...
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