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Optimal intra-symbol transmit windowing for multicarrier modulation

Magesacher, Thomas LU (2006) Second International Symposium on Communications, Control and Signal Processing In Proc. Intl. Symp. on Communications, Control and Signal Processing ISCCSP 2006
Abstract
Windowing of the transmitted blocks in a multicarrier

system yields an improved spectral containment of the

resulting basis functions, which allows larger transmit power compared to no windowing while fulfilling the power spectral density (PSD) requirements. Most transmit window designs proposed so far aim at maximising the mainlobe energy and thus the spectral containment of the transmit basis functions.

In this paper, we compute the transmit window that is

optimal in the sense of maximising the information rate for a time-dispersive Gaussian channel known to the transmitter and compare it to the maximum mainlobe-energy window.

It is shown that the maximum-rate window outperforms the

... (More)
Windowing of the transmitted blocks in a multicarrier

system yields an improved spectral containment of the

resulting basis functions, which allows larger transmit power compared to no windowing while fulfilling the power spectral density (PSD) requirements. Most transmit window designs proposed so far aim at maximising the mainlobe energy and thus the spectral containment of the transmit basis functions.

In this paper, we compute the transmit window that is

optimal in the sense of maximising the information rate for a time-dispersive Gaussian channel known to the transmitter and compare it to the maximum mainlobe-energy window.

It is shown that the maximum-rate window outperforms the

maximum mainlobe-energy window in terms of information

rate, particularly for low SNRs and for short cyclic extensions.

The out-of-band PSD characteristics of the maximum mainlobeenergy window is superior for short cyclic extensions but gradually deteriorates with the length of the cyclic extension. (Less)
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Proc. Intl. Symp. on Communications, Control and Signal Processing ISCCSP 2006
conference name
Second International Symposium on Communications, Control and Signal Processing
language
English
LU publication?
yes
id
098a7978-0701-4eec-8ef2-c87fc1b45f6f (old id 603364)
date added to LUP
2007-12-04 14:26:20
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2016-04-16 11:45:48
@misc{098a7978-0701-4eec-8ef2-c87fc1b45f6f,
  abstract     = {Windowing of the transmitted blocks in a multicarrier<br/><br>
system yields an improved spectral containment of the<br/><br>
resulting basis functions, which allows larger transmit power compared to no windowing while fulfilling the power spectral density (PSD) requirements. Most transmit window designs proposed so far aim at maximising the mainlobe energy and thus the spectral containment of the transmit basis functions.<br/><br>
In this paper, we compute the transmit window that is<br/><br>
optimal in the sense of maximising the information rate for a time-dispersive Gaussian channel known to the transmitter and compare it to the maximum mainlobe-energy window.<br/><br>
It is shown that the maximum-rate window outperforms the<br/><br>
maximum mainlobe-energy window in terms of information<br/><br>
rate, particularly for low SNRs and for short cyclic extensions.<br/><br>
The out-of-band PSD characteristics of the maximum mainlobeenergy window is superior for short cyclic extensions but gradually deteriorates with the length of the cyclic extension.},
  author       = {Magesacher, Thomas},
  language     = {eng},
  series       = {Proc. Intl. Symp. on Communications, Control and Signal Processing ISCCSP 2006},
  title        = {Optimal intra-symbol transmit windowing for multicarrier modulation},
  year         = {2006},
}