Theoretical limits on time delay estimation for ultra-wideband cognitive radios

Sinan Gezici; Hasari Celebi; Huseyin Arslan; H. Vincent Poor

doi:10.1109/ICUWB.2008.4653380

Theoretical limits on time delay estimation for ultra-wideband cognitive radios

Sinan Gezici, Hasari Celebi, Huseyin Arslan, H. Vincent Poor

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

5 Scopus citations

Abstract

In this paper, theoretical limits on time delay estimation are studied for ultra-wideband (UWB) cognitive radio systems. For a generic UWB spectrum with dispersed bands, the Cramer-Rao lower bound (CRLB) is derived for unknown channel coefficients and carrier-frequency offsets (CFOs). Then, the effects of unknown channel coefficients and CFOs are investigated for linearly and non-linearly modulated training signals by obtaining specific CRLB expressions. It is shown that for linear modulations with a constant envelope, the effects of the unknown parameters can be mitigated. Finally, numerical results, which support the theoretical analysis, are presented.

Original language	English (US)
Title of host publication	Proceeedings of The 2008 IEEE International Conference on Ultra-Wideband, ICUWB 2008
Pages	177-180
Number of pages	4
DOIs	https://doi.org/10.1109/ICUWB.2008.4653380
State	Published - 2008
Event	2008 IEEE International Conference on Ultra-Wideband, ICUWB 2008 - Hannover, Germany Duration: Sep 10 2008 → Sep 12 2008

Publication series

Name	Proceeedings of The 2008 IEEE International Conference on Ultra-Wideband, ICUWB 2008
Volume	2

Other

Other	2008 IEEE International Conference on Ultra-Wideband, ICUWB 2008
Country/Territory	Germany
City	Hannover
Period	9/10/08 → 9/12/08

All Science Journal Classification (ASJC) codes

Computer Networks and Communications
Electrical and Electronic Engineering
Communication

Keywords

Carrier frequency offset (CFO)
Cramer-rao lower bound (CRLB)
Dispersed spectrum utilization
Time delay estimation
Ultra-wideband (UWB) cognitive radio

Access to Document

10.1109/ICUWB.2008.4653380

Cite this

Gezici, S., Celebi, H., Arslan, H., & Poor, H. V. (2008). Theoretical limits on time delay estimation for ultra-wideband cognitive radios. In Proceeedings of The 2008 IEEE International Conference on Ultra-Wideband, ICUWB 2008 (pp. 177-180). Article 4653380 (Proceeedings of The 2008 IEEE International Conference on Ultra-Wideband, ICUWB 2008; Vol. 2). https://doi.org/10.1109/ICUWB.2008.4653380

@inproceedings{d51fbc14f8ed4e77bb0599db16f013ad,

title = "Theoretical limits on time delay estimation for ultra-wideband cognitive radios",

abstract = "In this paper, theoretical limits on time delay estimation are studied for ultra-wideband (UWB) cognitive radio systems. For a generic UWB spectrum with dispersed bands, the Cramer-Rao lower bound (CRLB) is derived for unknown channel coefficients and carrier-frequency offsets (CFOs). Then, the effects of unknown channel coefficients and CFOs are investigated for linearly and non-linearly modulated training signals by obtaining specific CRLB expressions. It is shown that for linear modulations with a constant envelope, the effects of the unknown parameters can be mitigated. Finally, numerical results, which support the theoretical analysis, are presented.",

keywords = "Carrier frequency offset (CFO), Cramer-rao lower bound (CRLB), Dispersed spectrum utilization, Time delay estimation, Ultra-wideband (UWB) cognitive radio",

author = "Sinan Gezici and Hasari Celebi and Huseyin Arslan and Poor, {H. Vincent}",

year = "2008",

doi = "10.1109/ICUWB.2008.4653380",

language = "English (US)",

isbn = "9781424418275",

series = "Proceeedings of The 2008 IEEE International Conference on Ultra-Wideband, ICUWB 2008",

pages = "177--180",

booktitle = "Proceeedings of The 2008 IEEE International Conference on Ultra-Wideband, ICUWB 2008",

note = "2008 IEEE International Conference on Ultra-Wideband, ICUWB 2008 ; Conference date: 10-09-2008 Through 12-09-2008",

}

Gezici, S, Celebi, H, Arslan, H & Poor, HV 2008, Theoretical limits on time delay estimation for ultra-wideband cognitive radios. in Proceeedings of The 2008 IEEE International Conference on Ultra-Wideband, ICUWB 2008., 4653380, Proceeedings of The 2008 IEEE International Conference on Ultra-Wideband, ICUWB 2008, vol. 2, pp. 177-180, 2008 IEEE International Conference on Ultra-Wideband, ICUWB 2008, Hannover, Germany, 9/10/08. https://doi.org/10.1109/ICUWB.2008.4653380

Theoretical limits on time delay estimation for ultra-wideband cognitive radios. / Gezici, Sinan; Celebi, Hasari; Arslan, Huseyin et al.
Proceeedings of The 2008 IEEE International Conference on Ultra-Wideband, ICUWB 2008. 2008. p. 177-180 4653380 (Proceeedings of The 2008 IEEE International Conference on Ultra-Wideband, ICUWB 2008; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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N2 - In this paper, theoretical limits on time delay estimation are studied for ultra-wideband (UWB) cognitive radio systems. For a generic UWB spectrum with dispersed bands, the Cramer-Rao lower bound (CRLB) is derived for unknown channel coefficients and carrier-frequency offsets (CFOs). Then, the effects of unknown channel coefficients and CFOs are investigated for linearly and non-linearly modulated training signals by obtaining specific CRLB expressions. It is shown that for linear modulations with a constant envelope, the effects of the unknown parameters can be mitigated. Finally, numerical results, which support the theoretical analysis, are presented.

AB - In this paper, theoretical limits on time delay estimation are studied for ultra-wideband (UWB) cognitive radio systems. For a generic UWB spectrum with dispersed bands, the Cramer-Rao lower bound (CRLB) is derived for unknown channel coefficients and carrier-frequency offsets (CFOs). Then, the effects of unknown channel coefficients and CFOs are investigated for linearly and non-linearly modulated training signals by obtaining specific CRLB expressions. It is shown that for linear modulations with a constant envelope, the effects of the unknown parameters can be mitigated. Finally, numerical results, which support the theoretical analysis, are presented.

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Theoretical limits on time delay estimation for ultra-wideband cognitive radios

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