An Investigation of the Impact of Signal Strength on Wi-Fi Link ...

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C 23.19 -77 46.1 1.904 NLOS (C-2m)C-D 21.21 -79 43.2 2.032 NLOS (C-3m)C-D 20.22 -76 31.4 2.795 NLOS (C-4m)C-D 19.24 -72 28.3 3.101 NLOS D 17.26 -70 13.2 6.649 NLOS (E-2m)D-E 14.32 -64 12.3 7.135 NLOS E 12.37 -60 11.2 7.836 NLOS F 12.37 -55 10.5 8.359 NLOS (A-2m)A-G 22.85 -78 51.7 1.698 NLOS (A-3m)A-G 21.93 -76 24.6 3.568 NLOS (A-4m)A-G 21.02 -77 19.1 4.595 NLOS (A-5m)A-G 20.12 -75 18.2 4.822 NLOS G 19.24 -76 20.6 4.260 NLOS (H-2m)G-H 16.64 -78 21.6 4.063 NLOS H 15.00 -72 15.6 5.626 NLOS I 10.82 -76 14.1 6.224 NLOS L 6.00 -51 8.8 9.973 LOS M 1.50 -43 8.2 10.703 LOS J 9.00 -55 8.7 10.008 LOS K 3.00 -48 8.1 10.835 LOS N 3.00 -44 8.2 10.703 LOS (N-2m)N-O 3.61 -52 8.3 10.574 NLOS (N-3m)N-O 4.24 -54 8.5 10.325 NLOS O 5.41 -52 8.3 10.574 NLOS P 9.49 -55 8.2 10.703 NLOS (P-1.5m)P-Q 9.12 -56 8.2 10.703 NLOS (P-2.5m)P-Q 9.01 -62 9.2 9.540 NLOS (P-3.5m)P-Q 9.01 -55 8.5 10.325 NLOS Q 9.49 -61 8.2 10.703 NLOS (R-4.5m)Q-R 10.06 -69 9.9 8.865 NLOS (R-3.5m)Q-R 10.55 -64 8.5 10.325 NLOS (R-2.5m)Q-R 11.10 -68 8.9 9.861 NLOS (R-1.5m)Q-R 11.72 -63 8.3 10.574 NLOS R 12.73 -62 8.4 10.448 NLOS S 10.06 -59 8.5 10.325 NLOS Table B.6: Numerical results for AP at position “N-3M”. - 126 -
7. Access Point at Position “H” RX Position AP at H TX at H2 Position File Size: 10.9MB Distance from AP (Meter) <strong>Signal</strong> <strong>Strength</strong> (dBm) - 127 - Time (second) Throughput (Mbps) LOS/NLOS A 11.00 -59 8.4 10.448 LOS (A-1.5m)A-B 11.10 -65 11.3 7.767 NLOS (A-2.5m)A-B 11.28 -64 10.2 8.604 NLOS (A-3.5m)A-B 11.54 -69 12.2 7.194 NLOS B 12.53 -69 11.9 7.375 NLOS (C-3m)B-C 14.21 -64 10.4 8.439 NLOS (C-2m)B-C 14.87 -66 10.7 8.202 NLOS C 16.28 -79 32.6 2.692 NLOS (C-2m)C-D 15.00 -74 23.6 3.719 NLOS (C-3m)C-D 14.42 -71 22.8 3.849 NLOS D 13.00 -70 21.7 4.044 NLOS (E-3m)D-E 12.37 -65 13.6 6.453 NLOS (E-2m)D-E 12.17 -64 9.1 9.645 NLOS E 12.00 -63 8.9 9.861 LOS F 6.00 -54 8.3 10.574 LOS G 5.00 -54 8.5 10.325 LOS I 6.00 -56 9.3 9.437 LOS L 10.82 -68 10.4 8.439 NLOS M 13.83 -69 11.8 7.438 NLOS J 12.00 -55 9.8 8.956 LOS (J-1.5m)J-K 12.09 -66 10.5 8.359 NLOS (J-2.5m)J-K 12.26 -68 11.7 7.501 NLOS K 13.42 -73 15.4 5.699 NLOS N 16.97 -74 13.3 6.599 NLOS (N-2m)N-O 18.44 -80 31.7 2.769 NLOS (N-3m)N-O 19.21 -81 32.9 2.668 NLOS (N-4m)N-O 20.00 -80 62.3 1.409 NLOS O 20.40 -84 101.9 0.861 NLOS (P-3.5m)O-P 21.22 -84 97.2 0.903 NLOS (P-2.5m)O-P 22.05 -82 133.9 0.655 NLOS
Page 1 and 2:
An Investi
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2.3.5 Signal <stro
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Attestation of Aut
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Abstract Wireless local area networ
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List of Abbreviati
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List of Figures Fi
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List of Tables Tab
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Chapter 1 Introduction There has be
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WLAN performance evaluation and ana
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Chapter 2 Background and Related Wo
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The IEEE 802.11 networks have two o
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The coverage of a
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2.2.1 Physical Layer Figure 2.8 sho
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throughput significantly at higher
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DCF is designed to provide “best-
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Figure 2.11: Backof</strong
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modulation in [37]. According to si
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Figure 2.12: Net throughput <strong
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As highlighted in [46, 47], distanc
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2.3.2 Base Station Placement <stron
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gained an insight that this would m
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proposed to improve WLAN performanc
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specifications of
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dynamic and complicated. As argued
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In addition, we surveyed and review
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4.1 Performance Metrics A stopwatch
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Model: DWL-G132 Specification: Sta
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Figure 4.1: WY building layout. - 4
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Figure 4.2 shows wireless configura
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4.4.2 Wireless Adapter Configuratio
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4.4.3 AP Operation Mode Two APs (D-
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meeting room with different distanc
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Scenario 4 In figure 4.12, two APs
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“(H-3.5m)F-H” is the</s
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Figure 4.16: Phase 2 measurement: A
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performed the prop
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The receiver sensitivity is an impo
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In table 5.1, the
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Ethernet connectio
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sufficient signal coverage and thro
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throughput decreases along with low
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In table 5.1, when RSS is larger th
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(for example, measurement point “
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AP at Position “R” Figure 5.13
Page 89 and 90: The measurement results indicated t
Page 91 and 92: 5.2.2 Throughput An</strong
Page 93 and 94: impact on RSS and throughput. Resul
Page 95 and 96: The throughput of
Page 97 and 98: The RSS of “WDS
Page 99 and 100: The average throughput of</
Page 101 and 102: The average data size of</s
Page 103 and 104: 5.6.1 SOHO Environment Due to <stro
Page 105 and 106: The following notes are needed to b
Page 107 and 108: when APs were placed at positions
Page 109 and 110: Real and accurate results for AP pl
Page 111 and 112: Chapter 7 Summary and Conclusions W
Page 113 and 114: planning. Propagation measurement (
Page 115 and 116: deployment. Many WLANs are deployed
Page 117 and 118: placement in indoor wireless system
Page 119 and 120: Communications, vol. 2, no. 5, pp.
Page 121 and 122: [56] J. K. L. Wong, M. J. Neve, and
Page 123 and 124: eceived signal strength of<
Page 125 and 126: Appendix A Preliminary Experimental
Page 127 and 128: 2. AP Mode Measurement in t
Page 129 and 130: 7. The Ad-Hoc Mode Measurement on <
Page 131 and 132: Appendix B Phase 1 Experimental Res
Page 133 and 134: (P-1.5m)O-P 32.78 -86 193.6 0.453 N
Page 135 and 136: 3. Access Point at Position “E-3M
Page 137 and 138: (C-5m)C-D 21.63 -83 46.8 1.875 NLOS
Page 139: J 9.00 -44 8.2 10.703 LOS (J-1.5m)J
Page 143 and 144: Figure B.2: Throughput map for AP a
Page 145 and 146: 60 40 20 0 -20 -40 -60 -80 -100 Acc
Page 147 and 148: (N-3m)N-O 15.00 -72 15.6 5.626 NLOS
Page 149 and 150: (C-3m)C-D 14.32 -74 13.6 6.453 NLOS
Page 151 and 152: Figure B.8: Throughput map for AP a
Page 153 and 154: 60 40 20 0 -20 -40 -60 -80 -100 Acc
Page 155 and 156: AP at A RX Position Left-Hand Area
Page 157 and 158: AP at L RX Position Left-Hand Area
Page 159 and 160: Appendix D Phase 3 Experimental Res
Page 161 and 162: TX at 2M from E-3M Data File: 153.6
Page 163 and 164: IEEE 802.11 b/g Access Point DWL-21
Page 165 and 166: Standards • IEEE 802.11g • IEEE
Page 167 and 168: 1 Maximum wireless signal rate deri
Page 169 and 170: Wireless 108G Standards • 802.11b
Page 171 and 172: Wireless 108G Add 802.11g Wireless
Page 173: 2.4GHz Omni-Directional 7dBi Indoor
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