Some ad hoc network performance observations

Network speeds

Theoretical limits

Speed Desc Bits/sec Bytes/sec
56Kbps modem 56,600 7,200
1.5Mbps T1 (symm) 1,500,000 187,500
4Mbps cable (asymm) 4,000,000 500,000
10Mbps ethernet 10,000,000 1,250,000
11Mbps 802.11b 11,000,000 1,375,000
54Mbps 802.11g 54,000,000 6,750,000
300Mbps 80211.n 300,000,000 37.5MB/s
100Mbps Fast ethernet 100,000,000 12,500,000
1000Mbps Gigabit eth 1,000,000,000 125,000,000

Observed

Type Bytes/sec
802.11g (GC/yaupon(mkm) to blazer) 40KB/sec
802.11g (blazer to GC/yaupon) 40KB/sec
802.11g (1w wireless AP) 700KB
700n to blazer 43KB/sec
blazer to 700n 8KB – 35KB/sec
T1 (home to blazer) 150KB/sec
T1 www.speakeasy.net 1.5MB dl, .5MB ul
802.11g (GC/yaupon to 700n) 2MB/sec
802.11g (700n to GC/yaupon) 2MB/sec
802.11g (mail.makuch.org to GC/yaupon) 170KB/sec
802.11g (mail.makuch.org to 700n) 180KB/sec
mkm home Gigabit 80MB/sec
mkm home Fast ethernet 10MB/sec

References


http://www.homenethelp.com/web/explain/about-network-speeds.asp


http://whatis.techtarget.com/definition/0,,sid9_gci783003,00.html


http://en.wikipedia.org/wiki/Gigabit_Ethernet


http://www.infobahn.com/t1-speed.htm


http://www.speakeasy.net/speedtest/

http://en.wikipedia.org/wiki/List_of_device_bandwidths#Local_area_networks