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From: Fan.Zhang on 26 Jul 2010 21:36
>On Mon, 10 Sep 2007 10:24:45 -0500, "blueyiu" <candy(a)cs.pdx.edu>
>wrote:
>
>>Thanks Markus.
>>
>>In general, can I use the bandwidth efficiency for particular modulation
>>to calculate the data rate given bandwidth? E.g. 8-PSK, the bandwidth
>>efficiency is 1.5, if bandwidth is 640MHz, will I get 1.5x640Mbps =
>>960Mbps?
>>
>>thanks again. really appreciate your help.
>>Yiu
>
>It sounds like you're including an assumed code rate of R = 1/2, since
>uncoded 8PSK is really 3 bits per symbol, not 1.5.
>
>For the most part, though, you're correct that data rate scales
>linearly with bandwidth for a given modulation order and code rate.
>
>Practical effects like spectrum availability and transmit power tend
>to limit things, though.
>
>Eric Jacobsen
>Minister of Algorithms
>Abineau Communications
>http://www.ericjacobsen.org
>


Might Yiu are implying a Trellis Coded Modulation?
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