作者Tingyutony (pb‧NA)
看板Bluetooth
标题Re: [问题] 无线上网ieee去哪里问?
时间Sat Jun 11 21:40:34 2005
※ 引述《babyboa (谁来带我去上班?)》之铭言:
: 请问一下有谁知道IEEE802.11的a b g这三种标准有那些显着的不同吗?
: 我外国朋友写的
简单说 a和g都是54Mbps b只有11Mbps
然後 a是使用5GHz的频段 b和g则是2.4GHz的频段
: 看不懂拉!....>_<
: 1.In high speed or heavy usage environments
: 802.11b is quickly being replaced by a new standard
: 802.11g, which uses the same 2.4GHz radio band,
: but at 54Mbps, is almost five times faster.
: The third wireless network standard is 802.11a,
: which also runs at 54Mbps,
: but operates in the less-crowded 5GHz radio band.
: 2.802.11a: The IEEE standard that governs the deployment of 5GHz OFDM systems.
: It specifies the implementation of the physical layer for wireless UNII b.
: 802.11b:An international IEEE standard for WLAN networks,
: operating at 2.4GHz and providing a maximum data transfer rate of 11Mbps.
: 802.11g: A proposed standard that describes a wireless networking method for
: a WLAN that operates in the 2.4GHz radio band
: It transfers data at up to 54 Mbps.
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