HyperWRT + tofu 9 - which wireless speed expected?

Discussion in 'HyperWRT Firmware' started by VladTepes77, Nov 14, 2005.

  1. VladTepes77

    VladTepes77 Network Guru Member

    I want to know which speed you get with this firmware, when doing FTP over WLAN.
    I get about 2 MB/sec, with/without encryption.

    How about you? Is this a normal speed? Should it not be more by 54Mbit?
  2. SteelersFANinMA

    SteelersFANinMA Network Guru Member

    Depends on the speed you get from your ISP, which you didn't mention.
  3. VladTepes77

    VladTepes77 Network Guru Member

    sry, I forgot to mention, it's Intranet, LAN, from Laptop to PC (wired).
  4. lurtis

    lurtis Network Guru Member


    havent tried doing a wireless to wired transfer. but i get about 1.6 mb/sec on average doing wireless to wireless transfer.. encryption on or off.
  5. cgondo

    cgondo Network Guru Member

    for wireless to wired, expect about double the amount of wireless to wireless
  6. VladTepes77

    VladTepes77 Network Guru Member

    please correct me if I think/calculate wrong:
    Transferring files over a 54MBit/sec connection should get a speed at about 6MB/sec?
    Are wireless connections simply slower than an aquivalent wired connection, by that value? I mean ok, 4-5MB would be OK, but 2MB corresponds a 16MBit connection...

    Or do I simply expect too much from a Wireless Connection with this firmware, is it related to this firmware, or does the original one behaves similarly?
  7. 4Access

    4Access Network Guru Member

    802.11g Wireless is rated at 54Mbps but you should never expect more than 20-24Mbps of useable throughput due to the overhead wireless protocols include. And that's under optimal conditions. (A single wireless client with a strong signal and no interference etc.)

    Check some reviews on TomsNetworking.com to confirm.
  8. danielhaden

    danielhaden Network Guru Member

    That should be about 2.3 to 2.7 megabytes per second while running WPA TKIP or AES encryption. In other words, data throughput rate is about 40% of the total speed because of data encryption and radio overhead.

    Expect a very busy WDS-AP pair to perform to 20% of the total speed (1.2 megabytes per second) because of the switching and relaying. These are great when serving Internet.

    Fanatics of network throughput will use "DS Roaming" and some really long wires (very long cable connects two AP units back to back, same SSID, different channel), OR double-headed radio links, whereby a backbone link carries the connection (different channel, different ssid, directional antennas, high power, does not serve wireless clients) and a seperate AP unit serves the clients. In either case, two AP units are connected back to back seperated by a non-shared connection of some sort. DS-Roaming and dedicated backhaul links maintain the 2.3 to 2.7 megabytes per second connection.

    For a faster wireless connection, a dedicated MIMO with two to three seperate radios per each link will manage a bit faster speed. Even in this case, the throughput rate is 40% of the advertised rate.
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