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A Hybrid UWB Modulation Design Compatible for both Coherent and Transmit-Reference Receivers

Orlik, P; Zhao, J and Molisch, Andreas LU (2006) IEEE International Conference on Communications, 2006 In [Host publication title missing] p.4741-4745
Abstract
In a pulsed UWB system, either coherent receivers or transmit-reference (TR) receivers can be used to demodulate the signals. For coherent receivers, which are typically based on a Rake Structure, the large number of resolvable multipaths is a major challenge for channel estimation and receiver complexity. TR receivers can effectively collect energy from all the received multipath components with much smaller complexity, but show reduced performance. Current modulation formats are tuned to either coherent or TR receivers, but cannot interoperate with both of them. In this paper, we propose an innovative modulation scheme that enables the useage of TR and coherent recievers in the same wireless network. The modulation allows demodulation by... (More)
In a pulsed UWB system, either coherent receivers or transmit-reference (TR) receivers can be used to demodulate the signals. For coherent receivers, which are typically based on a Rake Structure, the large number of resolvable multipaths is a major challenge for channel estimation and receiver complexity. TR receivers can effectively collect energy from all the received multipath components with much smaller complexity, but show reduced performance. Current modulation formats are tuned to either coherent or TR receivers, but cannot interoperate with both of them. In this paper, we propose an innovative modulation scheme that enables the useage of TR and coherent recievers in the same wireless network. The modulation allows demodulation by TR receivers, while at the same time enabling a coherent receiver to fully exploit all available signal energy, and actually to perform slightly better (by 1.8 dB) than a coherent receiver working with conventional BPSK modulation; this additional gain can be interpreted as a coding gain of a trellis-coded modulation scheme. The scheme thus allows the network designers to trade off performance vs. complexity in the receivers, while allowing a uniform signaling (modulation) scheme for all transmitters. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
[Host publication title missing]
pages
4741 - 4745
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
IEEE International Conference on Communications, 2006
external identifiers
  • Scopus:34547423501
ISBN
1-4244-0355-3
DOI
10.1109/ICC.2006.255389
language
English
LU publication?
yes
id
5db4e816-89f0-4729-bc7a-a00c6a449345 (old id 600858)
date added to LUP
2007-12-10 14:33:44
date last changed
2016-10-13 04:47:39
@misc{5db4e816-89f0-4729-bc7a-a00c6a449345,
  abstract     = {In a pulsed UWB system, either coherent receivers or transmit-reference (TR) receivers can be used to demodulate the signals. For coherent receivers, which are typically based on a Rake Structure, the large number of resolvable multipaths is a major challenge for channel estimation and receiver complexity. TR receivers can effectively collect energy from all the received multipath components with much smaller complexity, but show reduced performance. Current modulation formats are tuned to either coherent or TR receivers, but cannot interoperate with both of them. In this paper, we propose an innovative modulation scheme that enables the useage of TR and coherent recievers in the same wireless network. The modulation allows demodulation by TR receivers, while at the same time enabling a coherent receiver to fully exploit all available signal energy, and actually to perform slightly better (by 1.8 dB) than a coherent receiver working with conventional BPSK modulation; this additional gain can be interpreted as a coding gain of a trellis-coded modulation scheme. The scheme thus allows the network designers to trade off performance vs. complexity in the receivers, while allowing a uniform signaling (modulation) scheme for all transmitters.},
  author       = {Orlik, P and Zhao, J and Molisch, Andreas},
  isbn         = {1-4244-0355-3},
  language     = {eng},
  pages        = {4741--4745},
  publisher    = {ARRAY(0xb728ea0)},
  series       = {[Host publication title missing]},
  title        = {A Hybrid UWB Modulation Design Compatible for both Coherent and Transmit-Reference Receivers},
  url          = {http://dx.doi.org/10.1109/ICC.2006.255389},
  year         = {2006},
}