search for: ofdm

Displaying 4 results from an estimated 4 matches for "ofdm".

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2006 Mar 08
2
ath(4) and 802.11g speed
So, with the updated HAL, I'm now able to negotiate an IP address via DHCP over the WLAN. Huzzah! But I've got two questions (now that I can use the card): ath(4) doesn't contain a list of media nor mediaopt settings that can be used. Some are detailed down in EXAMPLES, but there's no comprehensive list. (As well, and this is minor, the speeds are explicitly listed for 802.11a
2009 Jan 12
2
bwi: no DS tssi no OFDM tssi
...94306MP. My dmesg is posted below. Bwi(4) is installed and it recognizes my card (*if_bwi_load-"YES"* is in my /etc/rc.conf and *bwi_v3* and *if_bwi* are loaded). I can send a IP request to my WEP encrypted access point. Yet, it doesn't get an offer and says that *no DS tssi* and *no OFDM tssi* Being new to bwi(4) and have never seen references to DS/OFDM tssi, I'm not sure what info to provide. My research is not leading anywhere helpful. Thanks. Copyright (c) 1992-2009 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regen...
2010 Jun 11
1
CELT bit error sensitivity
...bytes of overhead in exchange for the ability to correct all single bit errors and detect all double bit errors. More sophisticated schemes are possible. For example, some modulation schemes provide sub-symbols with different error properties (e.g. slices from trellis coded modulation, or distinct OFDM carriers) and various linear block error correcting can be constructed in a manner which provides unequal protection. I hope that CELT users will share interesting error protection solutions with the list.
2007 Nov 19
1
testing wireless security
...ssid="testnet1" # psk="xxx" } % ifconfig ath0 ath0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 inet 2.2.2.9 netmask 0xffffff00 broadcast 2.2.2.255 ether 00:0b:6b:2b:bb:69 media: IEEE 802.11 Wireless Ethernet autoselect (OFDM/48Mbps) status: associated ssid mike1 channel 1 bssid 00:0b:6b:84:3e:76 authmode WPA privacy ON deftxkey UNDEF TKIP 2:128-bit TKIP 3:128-bit txpowmax 49 bmiss 7 protmode CTS burst roaming MANUAL bintval 100 and the host % ifconfig ath0 ath0: flags=8843<UP,B...