Topology Control in Wireless Ad Hoc and Sensor Networks phần 8 ppsx
Topology Control in Wireless Ad Hoc and Sensor Networks phần 8 ppsx
... of ad hoc network properties so far derived in the literature turn out to be scarcelyuseful in practice and that a radio model that accounts for shadowing/fading effects shouldbe used instead ... the findings obtained by using the model are useful in practical situations.We believe that finding such a good balance in the realm of wireless ad hoc networks willbe a very difficult task and that ... asMobileGrid (Liu and Li 2002) and LINT/LILT (Ramanathan and Rosales-Hain 2000). Theseprotocols are based on the idea of maintaining the number of neighbors of each node withina low and a high threshold:...
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Topology Control in Wireless Ad Hoc and Sensor Networks phần 1 doc
... xxviiI Introduction 11 Ad Hoc and Sensor Networks 31.1 TheFutureofWirelessCommunication 31.1.1 Adhocnetworks 31.1.2 Wirelesssensornetworks 51.2 Challenges 71.2.1 Adhocnetworks 8 1.2.2 Wirelesssensornetworks ... . . . . . . . . 85 8 Energy-efficient Communication Topologies 87 8. 1 Energy-efficientUnicast 87 8. 2 Energy-efficientBroadcast 92 Topology Control in Wireless Ad Hoc and Sensor Networks Paolo SantiIstituto ... CLUSTERPOW and KNeighLev protocols 187 Topology Control in Wireless Ad Hoc and Sensor Networks LIST OF FIGURES xxv14.15 Relative performance of the CLUSTERPOW and KNeighLev protocols 186 15.1 Coverage...
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Topology Control in Wireless Ad Hoc and Sensor Networks phần 2 pps
... has Topology Control in Wireless Ad Hoc and Sensor Networks P. Santi 2005 John Wiley & Sons, Ltd AD HOC AND SENSOR NETWORKS 7Table 1.1 Comparison of typical features of wireless ad hoc and ... diffraction and scattering. Reflection occurs Topology Control in Wireless Ad Hoc and Sensor Networks P. Santi 2005 John Wiley & Sons, Ltd1 Ad Hoc and Sensor Networks 1.1 The Future of Wireless ... model of ad hoc network. Since sensor networks are a subclass of ad hoc networks, this model applies to this type of networks also.2.1 The Wireless ChannelNodes in ad hoc and sensor networks communicate...
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Topology Control in Wireless Ad Hoc and Sensor Networks phần 3 pot
... if and only if there exists at least one path connecting anytwo nodes in the graph. Topology Control in Wireless Ad Hoc and Sensor Networks P. Santi 2005 John Wiley & Sons, Ltd36 TOPOLOGY ... identified yet. In our view, topology control is an additional protocol layer positioned between therouting and MAC layer (see Figure 3.5).3.4.1 Topology control and routingThe routing layer is ... topology control , a clear definition of it hasnot been introduced yet.Quite informally, topology control is the art of coordinating nodes’ decisions regardingtheir transmitting ranges, in...
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Topology Control in Wireless Ad Hoc and Sensor Networks phần 4 pot
... instead of along at least one single Topology Control in Wireless Ad Hoc and Sensor Networks P. Santi 2005 John Wiley & Sons, LtdTHE RANGE ASSIGNMENT PROBLEM 83 number of noncanonical points ... generates aconnected communication graph, where ‘minimal’ is intended as ‘least energy cost’. Besides Topology Control in Wireless Ad Hoc and Sensor Networks P. Santi 2005 John Wiley & Sons, ... that shadowing/fading effects are not considered,transmitting range, and transmit power level are equivalent concepts. Since traditionally thefunction RA is defined in terms of range, instead of...
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Topology Control in Wireless Ad Hoc and Sensor Networks phần 6 potx
... node u and its k-closest neighbor. Topology Control in Wireless Ad Hoc and Sensor Networks P. Santi 2005 John Wiley & Sons, LtdDIRECTION-BASED TOPOLOGY CONTROL 119maximum level if the condition ... relation in RNG is symmetric.The RNG topology has several interesting features, as evidenced by the simulation-basedinvestigation on random node deployments reported in (Borbash and Jennings 2002). ... todetermine the number and identity of neighbors within the maximum transmitting range and to build an order on this neighbor set (based, for instance, on distance or on link quality). In a certain...
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Topology Control in Wireless Ad Hoc and Sensor Networks phần 7 pptx
... been proposed in the literature to deal with nodemobility. Topology Control in Wireless Ad Hoc and Sensor Networks P. Santi 2005 John Wiley & Sons, LtdLEVEL-BASED TOPOLOGY CONTROL 165uvwz≤r≥(1 ... as by the battery level, and soon. 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 ... each node in NLMST(u), and by removing the link (or adding the reverse link) in case it is unidirectional. In ourexample, we assume that the generated topology is made symmetric by removing unidirec-tional...
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Topology Control in Wireless Ad Hoc and Sensor Networks phần 10 doc
... environment.Proc. IEEE Workshop on Dependability 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, ... auctions, and competitive sealed tenders. Journal of Finance 16, 8 37.Wan P, Calinescu G, Li X and Frieder O 2002 Minimum energy broadcasting in static ad hoc wireless networks. ACM/Kluwer Wireless Networks ... mst for topology control and broadcasting in wireless ad hoc networks. IEEE Transactions on Parallel and Distributed Systems 15(12), 1057–1069.Liang W 2002 Constructing minimum-energy broadcast...
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Topology Control in Wireless Ad Hoc and Sensor Networks pdf
... http://www.simpopdf.com2Modeling Ad Hoc Networks In this chapter, we introduce a simple but widely accepted model of ad hoc network. Since sensor networks are a subclass of ad hoc networks, this model ... regulate radio signal propagation in the environmentcan be grouped into three categories: reflection, diffraction and scattering. Reflection occurs Topology Control in Wireless Ad Hoc and Sensor Networks ... resource on topology control in wireless ad hoc and sensor networks, a topic that has been a subject of intensive research in recent years. Indeed, this research field is far from being settled, and several...
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Báo cáo hóa học: " Editorial Cooperative Localization in Wireless Ad Hoc and Sensor Networks" pdf
... isproposed and applied to existing localization algorithms. In the paper “A new time-based algorithm for positioningmobile terminals in wireless networks by I. Martin-Escalona and F. Barcelo-Arroyo, ... arerunning. This study addresses the accuracy of the TOADalgorithm in two different environments: line-of-sight (LOS) and non-line-of-sight (NLOS). This technique improves thescalability and integrity ... nodes isinvestigated.The last two papers address the problem of localizing and tracking objects using a WSN. In particular, the paper“Localization capability of cooperative anti-intruder radarsystems”...
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