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Nov 22nd, 2008
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introducing bit erasure in packets..

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Hi,
In an assignment I'm supposed to introduce packet errors and bit erasures in the packets.packet errors I can do.Bit erasures mean we have no idea if its a 1 or a 0.how can I introduce something other than a 0 or a 1 in a bit?
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Junior Poster in Training
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Nov 22nd, 2008
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Re: introducing bit erasure in packets..

This question didn't make much sense to me at all.

> can I introduce something other than a 0 or a 1 in a bit?
A bit can only be either a 1 or a 0, or you can think of it as either on or off.
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Posting Virtuoso
William Hemsworth is offline Offline
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Nov 22nd, 2008
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Re: introducing bit erasure in packets..

Thats what I'm saying too.Let me explain bit erasure.

Lets say I transmit 01001101
theoretically, I recieve 01?01?01
ie. I dont know those bit values...though I'm in doubt now how thats even possible.but thats what bit erasure means.

this should help..
http://en.wikipedia.org/wiki/Binary_erasure_channel
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Junior Poster in Training
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Nov 25th, 2008
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Re: introducing bit erasure in packets..

still need help with this
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Junior Poster in Training
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Nov 25th, 2008
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Re: introducing bit erasure in packets..

Taking this example,

Lets say I transmit 01001101

Does erasure mean you receive
0101101
Send 8, got 7

Or does it mean
01011101
The data has been 'erased' because the bit has been flipped in transmission.

Flipping a bit is just xor
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Posting Sage
Salem is offline Offline
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This thread is more than three months old

No one has posted to this discussion for at least three months. Please let old threads die and do not reply to them unless you feel you have something new and valuable to contribute that absolutely must be added to make the discussion complete. Otherwise, please start a new thread in this forum instead.
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