WiFi/802.11
- 2.4~2.4835 GHz
- 83.5 MHz
- 2 Mbpsg
- FHSS & DSSS
- The current 802.11 standard defines operation in only a few regulatory domains (countries). IEEE 802.11d-2001 or 802.11d is an amendment to the IEEE 802.11 specification that adds support for "additional regulatory domains".
- This support includes the addition of a country information element to beacons, probe requests, and probe responses.
- This supplement to the 802.11 specifications defines the physical layer requirements:
- Channelization
- Hopping patterns
- New values for current MIB attributes
- Future requirements to extend the operation of 802.11 WLANs to new regulatory domains (countries).
- In 2003, task group TGma was authorized to "roll up" many of the amendments to the 1999 version of the 802.11 standard. REVma or 802.11ma, as it was called, created a single document that merged 8 amendments (802.11a, b, d, e, g, h, i, j) with the base standard. Upon approval on March 8, 2007, 802.11REVma was renamed to the current base standard IEEE 802.11-2007.
- Fine-tunning
- Chipset
- Module
- 海華
- 智易
- 正文
- 明泰
- BSS(basic service set)
- Infrastructure
- WDS
- Mesh Protocol/802.11s
- Ad hoc
- WiFi Direct/P2P
- AllJoyn
- Miracast
- DIAL
- IDs
- Wireless Access Point Application
- Configuration
- In WPS's simplest topology, there are two participants: the registrar and the enrollee.
- The registrar has the authority to issue and revoke credentials on the network. Typically, but not always, this is the access point.
- The enrollee, on the other hand, is the device seeking to join the wireless network.
- Acptive Portal(Access Controller)
- Hotspot
- Forum
page revision: 285, last edited: 31 Jan 2013 01:46