IEEE 802.11

USB WiFI for GNU/ Linux - Prism 54

A few hours ago received my cheap USB Wifi adapter purchased from shopping.rediff.com, never knew what type of hardware I have paid for, except for that it is a USB WiFi adapter. But thanks to the community efforts I was very much sure I would be able to use it in GNU/Linux (Fedora Core 10) one way or other.

The hardware was as per USB Vendor ID (0CDE:0008) a Z-Com Sitecom Wireless Network Adapter 100G+ WL-125 USB WiFi 802.11B/G Adapter. GNU/Linux /var/log/messages identified it to be a GlobespanVirata. Marketed under the brand name EDUP. A ISL3887 2nd Generation Prism54 chipset based device.

Submitted by Ajay Pal Singh Atwal on September 7, 2009 - 7:12pm. categories [ GNU/ Linux | IEEE 802.11 ] Ajay Pal Singh Atwal's blog | add new comment | read more | 545 reads

Madwifi vs Beacon Interval

This is something that I am writing for record purposes. Will try to provide more detailed analysis later, if time permits.

I am using the latest version r1416-20060126 (ok now not the latest) of MadWiFi New Generation for an Atheros 5212 based PCMCI card on GNU/ Linux (Fedora Core 4), for research purposes.

The driver and the NIC work great, but I encountered one small issue. If I change the beacon interval of my AP from say 100ms to something like 500/750/1000ms etc, packet loss jumps from 0% to around 20-35%.

Under same conditions the Intel 2200G with IPW2200 does not exhibit this problem. Seems to be some bug (? or a feature) in r1416 of MadWiFi-NG.

Submitted by Ajay Pal Singh Atwal on February 24, 2006 - 11:05am. categories [ IEEE 802.11 ] Ajay Pal Singh Atwal's blog | add new comment | 1003 reads
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