Tp-Link TL-WN861N [41/42] Appendix b glossary
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TL-WN861N Wireless N Mini PCI Adapter
35
Appendix B: Glossary
¾ 802.11b - The 802.11b standard specifies a wireless product networking at 11 Mbps using
direct-sequence spread-spectrum (DSSS) technology and operating in the unlicensed radio
spectrum at 2.4GHz, and WEP encryption for security. 802.11b networks are also referred to
as Wi-Fi networks.
¾ 802.11g - specification for wireless networking at 54 Mbps using direct-sequence
spread-spectrum (DSSS) technology, using OFDM modulation and operating in the
unlicensed radio spectrum at 2.4GHz, and backward compatibility with IEEE 802.11b devices,
and WEP encryption for security.
¾ 802.11n - 802.11n builds upon previous 802.11 standards by adding MIMO (multiple-input
multiple-output). MIMO uses multiple transmitter and receiver antennas to allow for increased
data throu
ghput via spatial multiplexing and increased range by exploiting the spatial diversity,
perhaps through coding schemes like Alamouti coding. The Enhanced Wireless Consortium
(EWC)
[3]
was formed to help accelerate the IEEE 802.11n development process and promote
a technology specification for interoperability of next-generation wireless local area
networking (WLAN) products.
¾ Ad-hoc Network - An ad-hoc network is a group of computers, each with a Wireless Adapter,
connected as an independent 802.11 wireless LAN. Ad-hoc wireless computers operate on a
peer-to-peer basis, communicating directly with each other without the use of an access point.
Ad-hoc mode is also referred to as an Independent Basic Service Set (IBSS) or as
peer-to-peer mode, and is useful at a departmental scale or SOHO operation.
¾ DSSS - (Direct-Sequence Spread Spectrum) - DSSS generates a redundant bit pattern for all
data transmitted. This bit pattern is called a chip (or chipping code). Even if one or more bits
in the chip are damaged during transmission, statistical techniques embedded in the receiver
can recover the original data without the need of retransmission. To an unintended receiver,
DSSS appears as low power wideband noise and is rejected (ignored) by most narrowband
receivers. However, to an intended receiver (i.e. another wireless LAN endpoint), the DSSS
signal is recognized as the only valid signal, and interference is inherently rejected (ignored).
¾ FHSS - (Frequency Hopping Spread Spectrum) - FHSS continuously changes (hops) the
carrier frequency of a conventional carrier several times per second according to a
pseudo-random set of channels. Because a fixed frequency is not used, and only the
transmitter and receiver know the hop patterns, interception of FHSS is extremely difficult.
¾ Infrastructure Network - An infrastructure network is a group of computers or other devices,
each with a Wireless Adapter, connected as an 802.11 wireless LAN. In infrastructure mode,
the wireless devices communicate with each other and to a wired network by first going
through an access point. An infrastructure wireless network connected to a wired network is
referred to as a Basic Service Set (BSS). A set of two or more BSS in a single network is
referred to as an Extended Service Set (ESS). Infrastructure mode is useful at a corporation
scale, or when it is necessary to connect the wired and wireless networks.
¾ Spread Spectrum - Spread Spectrum technology is a wideband radio frequency technique
Содержание
- Tl wn861n wireless n mini pci adapter 1
- Copyright trademarks 2
- Ce mark warning 3
- Fcc rf radiation exposure statement 3
- Fcc statement 3
- 2483 mhz 4
- Country restriction reason remark 4
- National restrictions 4
- Note please don t use the product outdoors in france 4
- Declaration of conformity 5
- Tp link technologies co ltd 5
- Tp link technologies co ltd south building no keyuan road central zone science technology park nanshan shenzhen p r china 5
- Appendix a specifications 34 6
- Appendix b glossary 35 6
- Chapter 1 introduction 2 6
- Chapter 2 installation guide 3 6
- Chapter 3 configuration 13 6
- Chapter 4 qss configuration 28 6
- Contents 6
- Package contents 6
- Conventions 7
- Package contents 7
- Chapter 1 introduction 8
- Features 8
- Overview of the product 8
- Chapter 2 installation guide 9
- Overview 9
- Software installation 9
- Software installation for windows xp 9
- Software installation for windows vista 14
- Chapter 3 configuration 19
- Current status 19
- Add or modify a configuration profile 21
- Profile management 21
- Remove a profile 26
- Export a profile 27
- Import a profile 27
- Switch another profile 27
- Auto profile selection management 28
- Scan available networks 28
- Diagnostics 29
- Check driver information 30
- Check receive and transmit statistical information 30
- Configuration for windows vista 31
- Chapter 4 qss configuration 34
- Pbc push button configuration method 35
- Enter a pin into your ap device 37
- Pin method 37
- Enter the pin from your ap device 38
- Appendix a specifications 40
- Appendix b glossary 41
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