Chapter Eight Wireless LANs
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Transcript of Chapter Eight Wireless LANs
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Chapter Eight
Wireless LANs
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Position of IEEE 802.11 within the
ISO modelFigure 8.1
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Formation of a PLCP frame from a LLC PDUFigure 8.2
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Signals sent from wireless devices to a LAN access point Figure 8.3
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Example of a BSS and an ESSFigure 8.4
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Example of an ad hoc wireless LANFigure 8.5
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IEEE 802.11 MAC architectureFigure 8.6
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Access method for the CSMA/CA protocolFigure 8.7
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General IEEE 802.11 frame formatFigure 8.8
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Comparison of ISM spectral bands for wireless LANsFigure 8.9
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The concept of the spread spectrum methodFigure 8.10
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Example of frequency hoppingFigure 8.11
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11-chip Barker sequences and the XOR function in DSSSFigure 8.12
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Concept of a diffused-light infrared wireless LANFigure 8.13
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IEEE-802.11 PLCP frame for infrared physical mediaFigure 8.14
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IEEE 802.11b frame
structuresFigure 8.15
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Multipath phenomenon in a
wireless LANFigure 8.16
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OFDM symbols with cyclic extensions at four frequenciesFigure 8.17
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Master/slave relationships for Bluetooth networksFigure 8.18
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Bluetooth packet format and its access code formatFigure 8.19
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Example of a wireless network in a home environmentFigure 8.20