You want to look into network coding. Coding transformsdata packets into<br> encoded packets, from which, if you have enough, you can recover the <br> original data packets. So there is no notion of resends with coding. You
<br> simply encode and blast your file. When the receiver has received N+epsilon,<br>it'll be able to decipher all N.<br><br>With coding, there is no need for a back channel from the receiver-to-sender for <br>resends.<br>
<br>Bob<br><br><div><span class="gmail_quote">On 4/1/06, <b class="gmail_sendername">Lemon Obrien</b> <<a href="mailto:lemonobrien@yahoo.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">lemonobrien@yahoo.com
</a>> wrote:</span><blockquote class="gmail_quote" style="margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; margin-left: 0.80ex; border-left-color: #cccccc; border-left-width: 1px; border-left-style: solid; padding-left: 1ex">
<div style="direction: ltr"><div><font style="background-color: #c7ffb7">i have files being exchanged/downloaded using udp (last resort if tcp fails); now, with</font></div><div><font style="background-color: #c7ffb7">udp you know you'll need to do error correction if a packet is missing; i do this by sending a 're-send' message; but, as some of you know...you can not flod the network with thousands of resends...especially if you relay messages to the destination node...so, my question is; what is a good average mean time to keep sending 're-sends'...i have it working with 500 milli-seconds and 1000...i want fast?
</font></div><div> </div><div><font style="background-color: #c7ffb7">Also, if no data is recieved, how long should i wait till i determine the connection is no longer valid?</font></div><div> </div><div><font style="background-color: #c7ffb7">
thanks</font></div><div><font style="background-color: #c7ffb7">lemon</font></div><br><br>You don't get no juice unless you squeeze<br></div><div style="direction: ltr"><span>Lemon Obrien, the Third. </span></div><br>_______________________________________________
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