a performance comparison of multi hop wireless ad hoc network routing protocols pdf
Báo cáo hóa học: " Editorial Cooperative Localization in Wireless Ad Hoc and Sensor Networks" pdf
... isinvestigated.The last two papers address the problem of localizingand tracking objects using a WSN. In particular, the paper“Localization capability of cooperative anti-intruder radarsystems” ... experimental data” by D. Dardari et al., anextensive measurement campaign is described and themeasured data are used to derive statistical ranging modelsbased on TOA estimation in the presence of ... 2 EURASIP Journal on Advances in Signal ProcessingWSNs usually have to deal with limited energy andhardware resources. The paper A wireless sensor network for RF-based indoor localization”...
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Báo cáo hóa học: " A survey of performance enhancement of transmission control protocol (TCP) in wireless ad hoc networks" pptx
... ADSN: ACK duplication sequence number; ACKs:acknowledgements; AODV: ad hoc on-demand distance vector; ATCP: ad hoc TCP; ADV: adaptive distance vector; APS: adaptive packet size; APS-FeW:adaptive ... 7, which adds an extra datapacket (DATA2) to the norma l exchange procedure of RTS/CTS/DATA/ACK, where DATA2 is a packet mov-ing in the opposite direction to that of packet DATA1.In addition, ... TCPdetection of out -of- order and response; TCP-DAA: TCP dynamic adaptiveACK; TCP-DAA: TCP dynamic adaptive acknowledgement; TPSN: TCP packetsequence number; TCP-ADA: TCP with adaptive delayed acknowledgement;TCP-AP:...
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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
... Wireless Ad- Hoc Networks, pp. 120–124, June2004.[5] F. Bai, N. Sadagopan, and A. Helmy, “Important: a frame-work to systematically analyze the impact of mobility on performance of routing protocols ... node broadcastsan RREQ for that destination. Otherwise, the node makes a list of unreachable destinations consisting of the unreachableneighbor and any additional destinations in its local routing table ... ad hoc wireless networks,” in Proceedings of the 2nd ACM International Workshop on Modeling, Analysisand Simulation of Wireless and Mobile Systems (MSWiM ’99),1999.[11] K. Fall and K. Varadham,...
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Báo cáo hóa học: "Research Article A Random Ant-Like Unicast Routing Protocol for Wireless Ad Hoc Sensor Networks and Performance Evaluation" pdf
... traffic load, RAUR has shown moretolerance to the increase of network traffic load, it is scalableas the routing load change is small and gradual even at highernumber of sending sources. The advantages ... invalid pathwill realize the invalid path when it receives the data packetand tries to forward it according to the path found in itsheader. The data packet is treated like any data packet thatcannot ... the Maximum number of hops we allowfor each RREQ to be forwarded Let us denote, time-out as Toutand Maximum number of hops as Max hop ,assuming the average waiting time at each hop is Wave.Then,...
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Báo cáo hóa học: " Research Article On the Throughput Capacity of Large Wireless Ad Hoc Networks Confined to a Region of Fixed Area" pptx
... examined the uniform throughput of large ad hoc networks confined to a region of fixed area. It was found that,for a large enough total area, as the total number of nodesincreases, the achievable ... to a square region of fixed area A. The availablebandwidth is assumed to have a fixed (but arbitrary) valueW. We find that the behavior of the throughput (up to nu-merical constants that are ... ArticleOn the Throughput Capacity of Large Wireless Ad Hoc Networks Confined to a Region of Fixed AreaEugene Perevalov,1Rick S. Blum,2and Danny Safi21Department of Industrial and Systems Engineering,...
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Báo cáo " A brief comparison of Vietnamese intonation and English intonation and its implications for teaching English intonation to Vietnamese EFL learners " pptx
... intonation to Vietnamese EFL learners The pronunciation mistakes made by people learning to speak a foreign language are almost always carry-overs from their native languages. Through a comparison ... effective materials are those that are based upon a scientific description of the language to be learned, carefully compared with a parallel description of the native language of the learner” ... optional components may be present: an initial consonant, a sound indicating the labialization (rounding of the lips) of the syllable, and a final consonant or semivowel. In case of the Vietnamese...
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REPORT TO THE UTAH LEGISLATURE Number 2011-03: A Performance Audit Of Utah State Parks pptx
... 400Lake PowellHyrum State ParkYuba Lake State ParkMoab River RangerGreat Salt Lake ParkWasatch Mountain State ParkSand Hollow State ParkSteinaker State ParkUtah Lake State ParkQuail ... ParkSnow Canyon State ParkPalisade State ParkAntelope Island State ParkStarvation State ParkEscalante State ParkHuntington State ParkEast Canyon State ParkFremont/Otter Creek State ParksKodachrome ... State ParkBear Lake State ParkWillard Bay State ParkLaw Enforcement Admin.Deer Creek State ParkCoral Pink Sand Dunes State ParkRockport State ParkJordanelle State ParkGreen River State...
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A Performance Audit of the Utah Telecommunication Open Infrastructure Agency ppt
... suggest that UTOPIA’s board and management team adopt a number of management and financial controls that will strengthen their oversight of the agency and their ability to hold people accountable ... result was a significant amount of stranded investment. As reported in Chapter II, UTOPIA officials state they are making a concerted effort to free already stranded assets. Additionally, moving ... GENERAL State of Utah Office of the Utah Legislative Auditor General - 11 - UIA also now has a negative financial position. UTOPIA’s major liabilities include $185 million of bonds payable,...
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Báo cáo khoa học: "A Practical Comparison of Parsing Strategies" docx
... thoroughly. Data was gathered for 35 variables measuring various aspects of behavior, including general information (13 variables), search space (8 variables), processing time (7 variables), and mamory ... A Practical Comparison of Parsing Strategies Jonathan Slocum Siemens Corporation INTRODUCTION Although the literature dealing with formal and natural languages abounds with theoretical arguments ... data for only five combinations of parser and grammar. Linguistic Grammar In terms of the number of grammar rules found applicable by the parsers, DIAMOND instantiated the fewest (aver- aging...
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báo cáo hóa học: " A randomised comparison of a four- and a five-point scale version of the Norwegian Function Assessment Scale" doc
... byNagata et al. [27], who compared feasibility of healthmeasurement response scales using four, five and sevencategories and a visual analog scale. The level of missingdata was least and ... L, Brown JP, Murray TM, Adachi JD, Hanley DA,Papadimitropoulos E: Canadian normative data for the SF-36health survey. Canadian Multicentre Osteoporosis StudyResearch Group. CMAJ 2000, 163:265-271.37. ... are available. However, thereis often a trade-off between scale reliability and ease of administration [11]. One study using the NHP indicatedthat the psychometric performance and patient accepta-bility...
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Báo cáo hóa học: "Energy consumption and lifetime analysis in clustered multi-hop wireless sensor networks using the probabilistic cluster-head selection method" pdf
... modeling approach can be applied to an arbi-trary-shaped network with a mathematical modificationthough the model becomes more complicated. Forexample, in the case of a rectangular-shaped sensing ... data toanother node, only the nodes on the shortest routing path forward the data.AS 7. The data aggregation effici ency of cluster-headsis 100%; although a cluster-head receives a number of data, ... simulation, nodes are randomly distributed in a disc-shaped a rea with a radius of 50 m. The nodes areassumed t o be homogeneous, omnidirectional, and sta-tionary. The radio range of all the nodes...
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Báo cáo hóa học: " Hidden node aware routing method using highsensitive sensing device for multi-hop wireless mesh network" docx
... node.Carrier sensingarea of A Carrier sensingarea of SCarrier sensingarea of BESB A DFlink1link2link3Carrier sensingarea of A Carrier sensingarea of SCarrier sensingarea of ... Payload is the packet payload size and rate isthe data rate of the network. 5 Performance evaluationIn this section, we eval uate the performance of the p ro-posed routing method using analysis ... multi- hop wireless mesh network Shamsad Parvin*and Takeo FujiiAbstractThroughput maximization is one of the main challenges in multi- hop wireless mesh network (WMN). Throughput of the multi- hop...
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Báo cáo hóa học: " Research Article Performance Analysis of Two-Hop OSTBC Transmission over Rayleigh Fading Channels" ppt
... relay where G is a relaygain. As categorized in the literature, relay gains may be fixedor variable. In this paper, variable relay gain is considered.Relay gains can be further classified as ... NSantennas at the source, NDantennas at the destination, and a single antenna at the relay, as shown in Figure 1.Tomakethe relay as simple as possible, an AF relaying protocol isemployed. It is also ... SNRTand outagecapacity C= 1.5bit/sec/Hz. In Figures 2–4, the variances of Rayleigh fading channels 1/(αSNRT) from the sourceantennas to the relay and the variance of Rayleigh fadingchannels...
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