802.11
姒傝堪鍙婂抚缁撴瀯鍒嗘瀽
AUTHOR:
Jeffrey.zhu
鐩綍锛?/p>
1
802.11
姒傝堪
2
鎷撴墤缁撴瀯鍙婃湇鍔＄被鍨?/p>
3
甯ф牸寮?/p>
3.1
甯ф牸寮忔杩?/p>
3.2 MAC Header
3.3
甯х被鍨?/p>
1 802.11
姒傝堪
IEEE 802.11
鏄竴涓崗璁皣锛屼富瑕佸寘鍚互涓嬭鑼冿細
1
锛夌墿鐞嗗眰瑙勮寖锛?/p>
802.11b
锛?/p>
802.11a
锛?/p>
802.11g
锛?/p>
2
锛夊寮哄瀷
MAC
灞傝鑼冿細
802.11i
锛?/p>
802.11r
锛?/p>
802.11h
绛夛紱
3
锛夐珮灞傚崗璁鑼冿細
802.11f
锛?/p>
802.11n
锛?/p>
802.11p
锛?/p>
802.11s
绛夈�?/p>
802.11
涓畾涔変簡涓夌鐗╃悊灞傝鑼冿紝鍒嗗埆鏄細棰戠巼璺冲彉鎵╁睍棰戣氨
(FHSS)PHY
瑙勮寖銆佺洿
鎺ュ簭鍒楁墿灞曢璋?/p>
(DSSS)PHY
瑙勮寖鍜岀孩澶栫嚎
(IR)PHY
瑙勮寖锛岀敱浜庣墿鐞嗗眰鐨勮鑼冧笌鏃犵嚎淇℃伅瀹?/p>
鍏ㄤ綋绯诲叧绯讳笉澶э紝鏁呮湰鏂囦笉瀵圭墿鐞嗗眰鍋氳繃澶氶槓杩般�?/p>
802.11
鍚?/p>
802.3
涓�鏍凤紝涓昏瀹氫箟浜?/p>
OSI
妯″瀷涓墿鐞嗗眰鍜屾暟鎹摼璺眰鐨勭浉鍏宠鑼冿紝鍏?/p>
涓暟鎹摼璺眰鍙堝彲鍒嗕负
MAC
瀛愬眰鍜?/p>
LLC
瀛愬眰锛?/p>
802.11
涓?/p>
802.3
鐨?/p>
LLC
瀛愬眰缁熶竴鐢?/p>
802.2
鎻忚堪銆?/p>
2
鎷撴墤缁撴瀯鍙婃湇鍔＄被鍨?/p>
WLAN
鏈変互涓嬩笁绉嶇綉缁滄嫇鎵戠粨鏋勶細
1
锛夌嫭绔嬪熀鏈湇鍔￠泦
(Independent BSS, IBSS)
缃戠粶
(
涔熷彨
ad-hoc
缃戠粶
)
锛?/p>