Why Standards Place Limits on Data Transfer Rates?

Posted by Mehrdad on Super User See other posts from Super User or by Mehrdad
Published on 2011-06-25T06:49:18Z Indexed on 2011/06/25 8:25 UTC
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data-transfer

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standards

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transfer-rate

This is a rather general question about hardware and standards in general:

Why do they place limits on data transfer rates, and disallow manufacturers from exceeding those rates? (E.g. 100 Mbit/s for Wireless G, 150 Mbit/s for Wireless N, ...)

Why not allow for some sort of handshake protocol, whereby the devices being connected agree upon the maximum throughput that they each support, and use that value instead? Why does there have to be a hard-coded limit, which would require a new standard for every single improvement to a data rate?

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