Comments on: Cylcic prefix in Orthogonal Frequency Division Multiplexing http://www.dsplog.com/2008/02/17/cylcic-prefix-in-orthogonal-frequency-division-multiplexing/ Signal Processing for Communication Fri, 10 Feb 2012 01:03:15 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Krishna Sankar http://www.dsplog.com/2008/02/17/cylcic-prefix-in-orthogonal-frequency-division-multiplexing/#comment-101385 Krishna Sankar Fri, 10 Feb 2012 00:59:41 +0000 http://www.dsplog.com/2008/02/17/cylcic-prefix-in-orthogonal-frequency-division-multiplexing/#comment-101385 @Michael: where? @Michael: where?

]]> By: Michael http://www.dsplog.com/2008/02/17/cylcic-prefix-in-orthogonal-frequency-division-multiplexing/#comment-100720 Michael Tue, 07 Feb 2012 04:56:45 +0000 http://www.dsplog.com/2008/02/17/cylcic-prefix-in-orthogonal-frequency-division-multiplexing/#comment-100720 is there should be Bsin(2wt+phi)? is there should be Bsin(2wt+phi)?

]]> By: Krishna Sankar http://www.dsplog.com/2008/02/17/cylcic-prefix-in-orthogonal-frequency-division-multiplexing/#comment-98248 Krishna Sankar Thu, 26 Jan 2012 01:26:21 +0000 http://www.dsplog.com/2008/02/17/cylcic-prefix-in-orthogonal-frequency-division-multiplexing/#comment-98248 @shraddha: Should be reasonably straightforward. For eg, if x = [1 2 3 4 5 6 7 8]; and if you wish to copy the last to samples to the first x_wth_cp = [x(7:8) x]; helps? @shraddha: Should be reasonably straightforward. For eg, if
x = [1 2 3 4 5 6 7 8]; and if you wish to copy the last to samples to the first
x_wth_cp = [x(7:8) x];
helps?

]]> By: shraddha http://www.dsplog.com/2008/02/17/cylcic-prefix-in-orthogonal-frequency-division-multiplexing/#comment-98137 shraddha Wed, 25 Jan 2012 09:48:41 +0000 http://www.dsplog.com/2008/02/17/cylcic-prefix-in-orthogonal-frequency-division-multiplexing/#comment-98137 hii... can u tell me how to add the cyclic prefix in matlab coding...as i know what is cylic prefix...bt i m nt getting the idea that how to copy the last 16 symbols before the 64 carriers... pleaseeee help me with the codes.. hii…
can u tell me how to add the cyclic prefix in matlab coding…as i know what is cylic prefix…bt i m nt getting the idea that how to copy the last 16 symbols before the 64 carriers…
pleaseeee help me with the codes..

]]> By: Krishna Sankar http://www.dsplog.com/2008/02/17/cylcic-prefix-in-orthogonal-frequency-division-multiplexing/#comment-92626 Krishna Sankar Thu, 05 Jan 2012 00:10:39 +0000 http://www.dsplog.com/2008/02/17/cylcic-prefix-in-orthogonal-frequency-division-multiplexing/#comment-92626 @arun: You might have heard about the OSI model having seven layers. The layers are used to characterize different logical blocks in a communication link. http://en.wikipedia.org/wiki/OSI_model Physical layer is the one which pushes the bits over wired, wireless etc. http://en.wikipedia.org/wiki/Physical_layer @arun: You might have heard about the OSI model having seven layers. The layers are used to characterize different logical blocks in a communication link.
http://en.wikipedia.org/wiki/OSI_model

Physical layer is the one which pushes the bits over wired, wireless etc.
http://en.wikipedia.org/wiki/Physical_layer

]]> By: arun http://www.dsplog.com/2008/02/17/cylcic-prefix-in-orthogonal-frequency-division-multiplexing/#comment-92234 arun Wed, 04 Jan 2012 04:39:51 +0000 http://www.dsplog.com/2008/02/17/cylcic-prefix-in-orthogonal-frequency-division-multiplexing/#comment-92234 what is the meaning of physical layer implementation based on 802.11g using ofdm? what is the meaning of physical layer implementation based on 802.11g using ofdm?

]]> By: Krishna Sankar http://www.dsplog.com/2008/02/17/cylcic-prefix-in-orthogonal-frequency-division-multiplexing/#comment-91705 Krishna Sankar Mon, 02 Jan 2012 23:40:05 +0000 http://www.dsplog.com/2008/02/17/cylcic-prefix-in-orthogonal-frequency-division-multiplexing/#comment-91705 @srikant: The frequency offset estimation on 802.11a short preamble using autocorrelation is discussed at http://www.dsplog.com/2008/03/03/frequency-offset-estimation-using-80211a-short-preamble/ @srikant: The frequency offset estimation on 802.11a short preamble using autocorrelation is discussed at
http://www.dsplog.com/2008/03/03/frequency-offset-estimation-using-80211a-short-preamble/

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