comparison of ad hoc routing protocols ppt
Báo cáo khoa học: "Paragraph-, word-, and coherence-based approaches to sentence ranking: A comparison of algorithm and human performance" ppt
... (9). Figure 3 shows a non-tree representation of the coherence structure of (9). Here, the heads of the arrows represent the directionality of a relation. Figure 3. Non-tree coherence ... multiple clusters. In order to compute the weight of a sentence, the weights of all clusters in that sentence are added. The higher the weight of a sentence, the higher is its ranking. A more ... weight of sentence i in document j, nsi is the number of words in sentence i, k is the kth word in sentence i, tfjk is the frequency of word k in document j, nd is the number of documents...
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Wireless ATM and Ad Hoc Routing
... achieved.10.4 Routing in Wireless Ad Hoc NetworksA brief introduction to packet routing in wireless ad hoc networks was made in Chapter 2.There, it was highlighted that the performance of such protocols ... Source Routing Protocols for Mobile Ad Hoc Networks, IETFDraft, October, 1999.[18] Toh C. K. A Novel Distributed Routing Protocol to Support Ad Hoc Mobile Computing, in Proceedings of IPCCC ... assumption of a statictopology is made. Thus, new routing protocols are needed for the dynamically changing ad hoc wireless environment.This section describes some representative routing protocols...
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the handbook of ad hoc wireless networks
... referred to as mobile ad hoc networks (MANETs) [33] or as infrastructure-less wireless networks. 1.2 Mobile Ad Hoc Networks A Mobile Ad hoc NETwork (MANET) is a system of wireless mobile ... and Local Ad Hoc Wireless Networks M arco Conti 2 M ulticasting Techniques in Mobile Ad Hoc Networks X iao Chen and Jie Wu 3 Qualit y of Service in Mobile Ad Hoc Networks ... of them is eliminated by optimizing over the secondary metric (say delay), and so on.The mobility of mobile ad hoc networks adds another dimension of difficulty. Highly mobile hosts in the ad...
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Báo cáo hóa học: " Research Article Performance Analysis of Ad Hoc Dispersed Spectrum Cognitive Radio Networks over Fading Channels" potx
... effective transport capacity of ad hoc dispersed spectrum cognitive radio networks is derived,and the effects of 3D node distribution on the effectivetransport capacity of ad hoc dispersed spectrum ... M-QAM) schemes. We then consider the deployment of such cognitive radio systems in an ad hoc fashion. We consider an ad hoc dispersed spectrum cognitive radio network, where the nodes are assumed to ... ticlePerformance Analysis of Ad Hoc Dispersed SpectrumCognitive Radio Networks over Fading ChannelsKhalid A. Qaraqe,1Hasari Celebi,1Muneer Mohammad,2and Sabit Ekin21Department of Electrical and...
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IPv6 Routing Protocols pptx
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Báo cáo hóa học: " Delay-throughput analysis of multi-channel MAC protocols in ad hoc networks" ppt
... MAC protocols in ad hoc networksResearch efforts in the field of access mechanisms forsingle-channel ad hoc networks have been extensive. Forexample, a multiplicity of single-channel MAC protocols has ... 2011:108http://jwcn.eurasipjournals.com/content/2011/1/108Page 3 of 152. T Bheemarjuna Reddy, I Karthigeyan, BS Manoj, C Siva Ram Murthy, Quality of Service Provisioning in Ad hoc Wireless Networks: A Survey of Issues andSolutions. Ad Hoc Networks. ... end of an ATIM window, it has towait for the next data interval and an additional delay of Tcis added. Hence, the overall delay isD = D0+M· Tc,(15)where M denotes the number of additional...
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Báo cáo hóa học: "Research Article Comparison of Channel Estimation Protocols for Coherent AF Relaying Networks in the Presence of Additive Noise and LO Phase Noise Stefan Berger and Armin Wittneben" pptx
... theperformance of any coherent gain allocation scheme. Whilethe impact of estimation noise on all protocols of Section 4is the same, the impact of phase noise is not. In this section,the impact of relay ... accuracy of the channel estimates obtained by the protocols is different. For symmetry reasons we can constrainourselves to the discussion of only two of the four protocols. We quantify the quality of ... theimpact of additive noise and relay phase noise on the quality of the channel estimates delivered by the protocols. Finally,we compare the quality of the channel estimates produced bythe protocols...
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Tài liệu Báo cáo khoa học: Comparison of membrane fraction proteomic profiles of normal and cancerous human colorectal tissues with gel-assisted digestion and iTRAQ labeling mass spectrometry pptx
... examined the expression status of several of theidentified proteins using western blotting. These repre-sentative proteins were selected based on changes of more than twofold in in their expression ... MSanalysis. Patients who had received any chemo- and ⁄ orradiotherapeutic treatment before surgery were excludedfrom this study.Isolation of membrane proteins from tumoraland adjacent normal tissuesAfter ... completely dissolved.Proteins were chemically reduced by adding 1.28 lLof200 mM Tris(2-carboxyethyl)-phosphine and alkylated byadding 0.52 lL of 200 mm methyl methanethiosulfonate atroom temperature...
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Tài liệu Báo cáo khoa học: "A Comparison of Alternative Parse Tree Paths for Labeling Semantic Roles" ppt
... em-ploying each of these parsing alternatives? Each of these four questions is addressed in the four subsequent sections of this paper, fol-lowed by a discussion of the implications of our findings ... of new parse tree paths that yield additional candidate answers. Conversely, the recall scores of each system show their great-est gains early, and then slowly improve with the addition of ... presents a comparison of the f-score learning curves for all five of the approaches. In each approach, the precision scores slowly degrade as more training examples are provided, due to the addition...
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Báo cáo khoa học: The oxidative effect of bacterial lipopolysaccharide on native and cross-linked human hemoglobin as a function of the structure of the lipopolysaccharide A comparison of the effects of smooth and rough lipopolysaccharide ppt
... presence of EDTA. The roughS. minnesota LPS increased the initial fast phase of thereaction, but decreased the rate of the slow phase of oxidation in the presence of EDTA.A comparison of rough ... studied.A comparison of the auto-oxidation of cross-linked Hbwith that of Hb A0is shown in Fig. 3A. The effect of thepresence of EDTA, known to bind heavy metal cations [16],on the oxidation of ... LPS.Fig. 2. Comparison of the effects of the LPSs of rough S. minnesota 595(Re) and smooth S. minnesota, in the absence and presence of EDTA, onthe oxidation of a, a-cross-linked Hb. Themean±SDofthreeinde-pendent...
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Báo cáo khoa học: Comparison of functional properties of two fungal antifreeze proteins from Antarctomyces psychrotrophicus and Typhula ishikariensis ppt
... results of a comparison of theconcentration dependence of TH activity amongAnpAFP, TisAFP and fish type III AFP. It also showsthe concentration dependence of TH of a recombinantTisAFP isoform ... noted that the TH value of the TisAFP natu-ral product (i.e. isoform mixture) was approximatelyhalf of that of the TisAFP8 isoform, suggesting a verylow percentage of TisAFP8 in the TisAFP ... Alignment of the N-terminal sequences of AnpAFP withthose of three TisAFP isoforms. The 10th residue from the N-termi-nus of AnpAFP (marked X) could not be conclusively identifiedusing Edman degradation....
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