Situation awareness for mobile information access in heterogeneous wireless networks:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Berlin [u.a.]
VDE-Verl.
2005
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| Schriftenreihe: | Forschungs-Report
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| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | VIII, 173 S. Ill., graph. Darst. |
| ISBN: | 3800728974 |
Internformat
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Datensatz im Suchindex
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| adam_text | FORSCHUNGS-REPORT SITUATION AWARENESS FOR MOBILE INFORMATION ACCESS IN
HETEROGENEOUS WIRELESS NETWORKS MICHAEL ANGERMANN VDE VERLAG GMBH *
BERLIN * OFFENBACH CONTENTS 1 INTRODUCTION 1 1.1 BACKGROUND 1 1.2
CONTRIBUTIONS AND STRUCTURE OF THIS THESIS 3 1.3 RELATED WORK 5 1.3.1
CONTEXT AWARENESS 6 1.3.2 PREFETCHING AND CACHING IN NETWORKS 8 2
CONCEPTS AND THEORETICAL ASPECTS 11 2.1 SITUATION MODEL 11 2.1.1
SITUATION SPACE 12 2.1.2 DYNAMIC SITUATION MODEL 18 2.1.3 SYMPTOMS AND
CONSEQUENCES 26 2.1.3.1 SYMPTOMS 26 2.1.3.2 CONSEQUENCES 27 2.1.4
SELECTION CRITERIA FOR ASPECTS AND COMPONENTS 28 2.1.4.1 INTERPRETATION
FOR IGNORANCE OF SITUATION AS FALSE PROBABILITY ASSUMPTION 35 2.1.5
ESTIMATION OF MODEL PROBABILITIES 37 2.1.5.1 FREQUENTIST S ESTIMATOR 39
2.1.5.2 LAPLACE S LAW OF SUCCESSION 40 2.1.5.3 DERIVATION OF MAXIMUM
LIKELIHOOD ESTIMATOR FOR MULTINOMIAL DISTRI- BUTIONS 40 2.1.5.4 ANALYSIS
AND COMPARISON OF ESTIMATOR ERRORS 42 2.1.5.5 BAYESIAN ANALYSIS OF
ESTIMATION FOR MULTINOMIAL DISTRIBUTIONS . ... 46 2.1.5.6 ESTIMATION FOR
RANKING AND PREFETCHING PURPOSES 51 2.2 SITUATION-AWARE PREFETCHING 55
2.2.1 ANALYTICAL MODEL 57 2.2.2 INFLUENCE ON WAITING TIME 59 2.2.2.1
TWO-DOCUMENT PROBLEM WITH KNOWN REQUEST TIME 59 2.2.2.2 ARBITRARY NUMBER
OF DOCUMENTS WITH UNKNOWN REQUEST TIME ... 62 2.2.3 INFLUENCE ON
TRANSPORTED VOLUME 72 2.2.4 USER POLICY AND OPTIMUM PROBABILITY
THRESHOLD 74 YJ CONTENTS 3 SYSTEM SIMULATION 77 3.1 NETWORK MODEL 77
3.1.1 TOPOLOGY AND MOBILITY 78 3.1.2 RESOURCE SHARING AND EFFECTIVE DATA
RATE 81 3.2 MOBILITY MODEL 82 3.2.1 PATH GENERATION 83 3.2.1.1 DIFFUSION
ALGORITHM 83 3.2.2 SPEED GENERATION 87 3.2.3 COVERAGE MODEL DEFINITION
88 3.3 DOCUMENT AND TRAFFIC MODEL 93 3.4 SIMULATION RESULTS AND
DISCUSSION 96 3.4.1 SINGLE USER, CLASSICAL MOBILE NETWORKING SCENARIO 96
3.4.1.1 SINGLE TRIAL EXPERIMENT 96 3.4.1.2 MULTI TRIAL EXPERIMENT 100
3.4.2 MULTI USER SCENARIOS 104 3.4.2.1 INFLUENCE OF DOCUMENT
PROBABILITIES 107 3.4.2.2 INFLUENCE OF PROBABILITY THRESHOLD 107 3.4.2.3
INFLUENCE OF NUMBER OF ACCESS POINTS 109 4 IMPLEMENTATION ASPECTS 115
4.1 RELEVANT CONDITIONS AND CONSTRAINTS IN MOBILE NETWORKS AND DEVICES
115 4.1.1 NETWORKING CONDITIONS 116 4.1.2 SOFTWARE CONDITIONS 117 4.2
SYSTEM ARCHITECTURE 118 4.2.1 ELEMENTS FOR SITUATION AWARENESS 118 4.2.2
APPLICATION LAYER PROXIES 119 4.2.3 CACHE CONSISTENCY AND DYNAMIC
CONTENT 123 4.3 SOFTWARE DEVELOPMENT, INTEGRATION AND TEST 131 4.3.1
PERFORMANCE MEASUREMENTS 133 4.4 DEPLOYMENT AND INITIAL OPERATIONAL
EXPERIENCES 139 5 CONCLUSIONS AND OUTLOOK 143 5.1 CONCLUSIONS 143 5.2
OUTLOOK I 44 A DYNAMIC PRICING FOR DEMAND CONTROL 145 B FAST GENERATION
OF HIGH-DIMENSIONAL UNIFORM PROBABILITY VEC- TORS 149 CONTENTS VII C
MEMORY MANAGEMENT AND DATA TRANSFER IN COMPUTER SYSTEMSLOEL C.L PAGING
AND SWAPPING 152 C.2 CACHING 153 GLOSSARY 161 BIBLIOGRAPHY 166
|
| any_adam_object | 1 |
| author | Angermann, Michael |
| author_facet | Angermann, Michael |
| author_role | aut |
| author_sort | Angermann, Michael |
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| building | Verbundindex |
| bvnumber | BV024623236 |
| classification_rvk | ST 200 ZN 6560 |
| ctrlnum | (OCoLC)76740416 (DE-599)DNB974289280 |
| dewey-full | 004 |
| dewey-hundreds | 000 - Computer science, information, general works |
| dewey-ones | 004 - Computer science |
| dewey-raw | 004 |
| dewey-search | 004 |
| dewey-sort | 14 |
| dewey-tens | 000 - Computer science, information, general works |
| discipline | Maschinenbau / Maschinenwesen Informatik Elektrotechnik / Elektronik / Nachrichtentechnik |
| format | Thesis Book |
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| indexdate | 2024-07-09T22:03:15Z |
| institution | BVB |
| isbn | 3800728974 |
| language | English |
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| spelling | Angermann, Michael Verfasser aut Situation awareness for mobile information access in heterogeneous wireless networks Michael Angermann Berlin [u.a.] VDE-Verl. 2005 VIII, 173 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Forschungs-Report Zugl.: Ulm, Univ., Diss., 2004 Heterogenes Netzwerk (DE-588)4620176-2 gnd rswk-swf Mobile Computing (DE-588)4694120-4 gnd rswk-swf Funknetz (DE-588)4216130-7 gnd rswk-swf Kontextbezogenes System (DE-588)4739720-2 gnd rswk-swf Prefetching (DE-588)4824330-9 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Funknetz (DE-588)4216130-7 s Heterogenes Netzwerk (DE-588)4620176-2 s Mobile Computing (DE-588)4694120-4 s Prefetching (DE-588)4824330-9 s Kontextbezogenes System (DE-588)4739720-2 s DE-604 GBV Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=018595125&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Angermann, Michael Situation awareness for mobile information access in heterogeneous wireless networks Heterogenes Netzwerk (DE-588)4620176-2 gnd Mobile Computing (DE-588)4694120-4 gnd Funknetz (DE-588)4216130-7 gnd Kontextbezogenes System (DE-588)4739720-2 gnd Prefetching (DE-588)4824330-9 gnd |
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| title | Situation awareness for mobile information access in heterogeneous wireless networks |
| title_auth | Situation awareness for mobile information access in heterogeneous wireless networks |
| title_exact_search | Situation awareness for mobile information access in heterogeneous wireless networks |
| title_full | Situation awareness for mobile information access in heterogeneous wireless networks Michael Angermann |
| title_fullStr | Situation awareness for mobile information access in heterogeneous wireless networks Michael Angermann |
| title_full_unstemmed | Situation awareness for mobile information access in heterogeneous wireless networks Michael Angermann |
| title_short | Situation awareness for mobile information access in heterogeneous wireless networks |
| title_sort | situation awareness for mobile information access in heterogeneous wireless networks |
| topic | Heterogenes Netzwerk (DE-588)4620176-2 gnd Mobile Computing (DE-588)4694120-4 gnd Funknetz (DE-588)4216130-7 gnd Kontextbezogenes System (DE-588)4739720-2 gnd Prefetching (DE-588)4824330-9 gnd |
| topic_facet | Heterogenes Netzwerk Mobile Computing Funknetz Kontextbezogenes System Prefetching Hochschulschrift |
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