Sideband Noise Mitigation in a Co-Located Network Involving CDMA2000 and WCDMA System

Nosiri Onyebuchi Chikezie; Onoh Gregory Nwachukwu; Chukwudebe Gloria Azogini; Azubogu Austin Chukwuemeka

doi:doi:10.11648/j.ajnc.20140302.11

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Sideband Noise Mitigation in a Co-Located Network Involving CDMA2000 and WCDMA System

Nosiri Onyebuchi Chikezie, Onoh Gregory Nwachukwu, Chukwudebe Gloria Azogini, Azubogu Austin Chukwuemeka

Published in American Journal of Networks and Communications (Volume 3, Issue 2)

Received: 22 April 2014 Accepted: 12 May 2014 Published: 20 May 2014

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Abstract

The installation of base station antennas within close frequency range in a co-located scenario constitutes a major interference for radio spectrum engineers. In a co-located setting involving a downlink frequency of CDMA2000 (1960 -1990MHz) and an uplink frequency of WCDMA (1920-1980MHz) as used in the telecommunication industry in Nigeria, the base station receiver is required to receive low amplitude desired signals in the presence of strong transmitting power signals resulting to sideband noise interference. The paper identifies the major mechanism of the sideband noise and proposes the application of a Butterworth Band Pass Filter (BBPF) as a mitigation technique. The technique was developed through the applications of empirical and mathematical analysis conducted in two different scenarios to evaluate the levels of the interference signals on the WCDMA receiver from CDMA2000 transmitter. The first scenario involved a standalone un-collocated WCDMA network while the second scenario involved a co-located network (CDMA2000 and WCDMA). A 52dB required attenuation specification was obtained for the BBPF design.

Published in	American Journal of Networks and Communications (Volume 3, Issue 2)
DOI	10.11648/j.ajnc.20140302.11
Page(s)	17-24
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2014. Published by Science Publishing Group

Keywords

Sideband Noise, WCDMA, CDMA2000, Co-Location, BBPF

References

[1]	P. Stox “Wireless co-location on towers and alternate structure” satellite broadcast TV, linksystem.uk.com. April, 2010.
[2]	Guidelines for siting and sharing of Telecommunication base station infrastructure, “Rwanda Utilities Regulatory Agency” RURA/ICT infraDev/Dev/G02/2011. Pp 10-12, 2011.
[3]	Guidelines on Collocation and Infrastructure Sharing Issued by the Nigerian Communications Commission, pp 1-2, 2010
[4]	S. Opara, I. Iteun, “Option for Telecoms operators during recession”. A published article pp1-2, June, 2009
[5]	F.E. Idachaba, “Telecommunication Cost Reduction in Nigeria through Infrastructure Sharing between Operators”. Pacific Journal of Science and Technology. 11(1):272-276, 2010.
[6]	Nigeria Communications Week “Managed services in Nigeria “, March 11, 2012.
[7]	Chen Xinting, “Analysis of co-site interference between different mobile communication system”, wireless technical support department, Huawei technologies Co. Ltd, pg 9, 2008.
[8]	Trino G., Chen L., “interference analysis between co-located networks in Nigeria”, RF design Manager from Starcomms 2nd version, 2007.
[9]	Policy on co-location and infrastructure sharing in SAMOA. Office of the regulator, pp 4-8, March, 2012
[10]	S. Ahmed, “Interference mitigation in co-located wireless systems”. A PhD thesis, School of Engineering and Science, Faculty of Health, Engineering and science, Victoria University, pg 3, Dec., 2012.
[11]	A. Roussel “Feedforward interference cancellation system applied to the 800MHz CDMA cellular band”. A Master of applied science in Electrical Engineering. Ottawa-Carleton Institute. Pg 6, 2003.
[12]	Chenung, Tze Chiu, , “Radio Performance”, Chapter 4 Virginia Tech: ETD 122298 pp 96-99, 2009
[13]	Montegrotto T. “Practical Mechanism to Improve the Compatibility between GSM-R and Public Mobile Networks and Guidance on Practical Co-ordination”, ECC Report 162, p. 40 May, 2011.

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APA Style

Nosiri Onyebuchi Chikezie, Onoh Gregory Nwachukwu, Chukwudebe Gloria Azogini, Azubogu Austin Chukwuemeka. (2014). Sideband Noise Mitigation in a Co-Located Network Involving CDMA2000 and WCDMA System. American Journal of Networks and Communications, 3(2), 17-24. https://doi.org/10.11648/j.ajnc.20140302.11

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ACS Style

Nosiri Onyebuchi Chikezie; Onoh Gregory Nwachukwu; Chukwudebe Gloria Azogini; Azubogu Austin Chukwuemeka. Sideband Noise Mitigation in a Co-Located Network Involving CDMA2000 and WCDMA System. Am. J. Netw. Commun. 2014, 3(2), 17-24. doi: 10.11648/j.ajnc.20140302.11

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AMA Style

Nosiri Onyebuchi Chikezie, Onoh Gregory Nwachukwu, Chukwudebe Gloria Azogini, Azubogu Austin Chukwuemeka. Sideband Noise Mitigation in a Co-Located Network Involving CDMA2000 and WCDMA System. Am J Netw Commun. 2014;3(2):17-24. doi: 10.11648/j.ajnc.20140302.11

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@article{10.11648/j.ajnc.20140302.11,
  author = {Nosiri Onyebuchi Chikezie and Onoh Gregory Nwachukwu and Chukwudebe Gloria Azogini and Azubogu Austin Chukwuemeka},
  title = {Sideband Noise Mitigation in a Co-Located Network Involving CDMA2000 and WCDMA System},
  journal = {American Journal of Networks and Communications},
  volume = {3},
  number = {2},
  pages = {17-24},
  doi = {10.11648/j.ajnc.20140302.11},
  url = {https://doi.org/10.11648/j.ajnc.20140302.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajnc.20140302.11},
  abstract = {The installation of base station antennas within close frequency range in a co-located scenario constitutes a major interference for radio spectrum engineers. In a co-located setting involving a downlink frequency of CDMA2000 (1960 -1990MHz) and an uplink frequency of WCDMA (1920-1980MHz) as used in the telecommunication industry in Nigeria, the base station receiver is required to receive low amplitude desired signals in the presence of strong transmitting power signals resulting to sideband noise interference. The paper identifies the major mechanism of the sideband noise and proposes the application of a Butterworth Band Pass Filter (BBPF) as a mitigation technique. The technique was developed through the applications of empirical and mathematical analysis conducted in two different scenarios to evaluate the levels of the interference signals on the WCDMA receiver from CDMA2000 transmitter. The first scenario involved a standalone un-collocated WCDMA network while the second scenario involved a co-located network (CDMA2000 and WCDMA). A 52dB required attenuation specification was obtained for the BBPF design.},
 year = {2014}
}

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TY  - JOUR
T1  - Sideband Noise Mitigation in a Co-Located Network Involving CDMA2000 and WCDMA System
AU  - Nosiri Onyebuchi Chikezie
AU  - Onoh Gregory Nwachukwu
AU  - Chukwudebe Gloria Azogini
AU  - Azubogu Austin Chukwuemeka
Y1  - 2014/05/20
PY  - 2014
N1  - https://doi.org/10.11648/j.ajnc.20140302.11
DO  - 10.11648/j.ajnc.20140302.11
T2  - American Journal of Networks and Communications
JF  - American Journal of Networks and Communications
JO  - American Journal of Networks and Communications
SP  - 17
EP  - 24
PB  - Science Publishing Group
SN  - 2326-8964
UR  - https://doi.org/10.11648/j.ajnc.20140302.11
AB  - The installation of base station antennas within close frequency range in a co-located scenario constitutes a major interference for radio spectrum engineers. In a co-located setting involving a downlink frequency of CDMA2000 (1960 -1990MHz) and an uplink frequency of WCDMA (1920-1980MHz) as used in the telecommunication industry in Nigeria, the base station receiver is required to receive low amplitude desired signals in the presence of strong transmitting power signals resulting to sideband noise interference. The paper identifies the major mechanism of the sideband noise and proposes the application of a Butterworth Band Pass Filter (BBPF) as a mitigation technique. The technique was developed through the applications of empirical and mathematical analysis conducted in two different scenarios to evaluate the levels of the interference signals on the WCDMA receiver from CDMA2000 transmitter. The first scenario involved a standalone un-collocated WCDMA network while the second scenario involved a co-located network (CDMA2000 and WCDMA). A 52dB required attenuation specification was obtained for the BBPF design.
VL  - 3
IS  - 2
ER  -

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Author Information

Nosiri Onyebuchi Chikezie

Department of Electrical & Electronic Engineering, Federal University of Technology Owerri, Nigeria
Onoh Gregory Nwachukwu

Department of Electrical & Electronic Engineering, Enugu State University of Science & Technology, Nigeria
Chukwudebe Gloria Azogini

Department of Electrical & Electronic Engineering, Federal University of Technology Owerri, Nigeria
Azubogu Austin Chukwuemeka

Department of Electronic and Computer Engineering, Nnamdi Azikiwe University Awka, Nigeria

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APA Style

Nosiri Onyebuchi Chikezie, Onoh Gregory Nwachukwu, Chukwudebe Gloria Azogini, Azubogu Austin Chukwuemeka. (2014). Sideband Noise Mitigation in a Co-Located Network Involving CDMA2000 and WCDMA System. American Journal of Networks and Communications, 3(2), 17-24. https://doi.org/10.11648/j.ajnc.20140302.11

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ACS Style

Nosiri Onyebuchi Chikezie; Onoh Gregory Nwachukwu; Chukwudebe Gloria Azogini; Azubogu Austin Chukwuemeka. Sideband Noise Mitigation in a Co-Located Network Involving CDMA2000 and WCDMA System. Am. J. Netw. Commun. 2014, 3(2), 17-24. doi: 10.11648/j.ajnc.20140302.11

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AMA Style

Nosiri Onyebuchi Chikezie, Onoh Gregory Nwachukwu, Chukwudebe Gloria Azogini, Azubogu Austin Chukwuemeka. Sideband Noise Mitigation in a Co-Located Network Involving CDMA2000 and WCDMA System. Am J Netw Commun. 2014;3(2):17-24. doi: 10.11648/j.ajnc.20140302.11

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@article{10.11648/j.ajnc.20140302.11,
  author = {Nosiri Onyebuchi Chikezie and Onoh Gregory Nwachukwu and Chukwudebe Gloria Azogini and Azubogu Austin Chukwuemeka},
  title = {Sideband Noise Mitigation in a Co-Located Network Involving CDMA2000 and WCDMA System},
  journal = {American Journal of Networks and Communications},
  volume = {3},
  number = {2},
  pages = {17-24},
  doi = {10.11648/j.ajnc.20140302.11},
  url = {https://doi.org/10.11648/j.ajnc.20140302.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajnc.20140302.11},
  abstract = {The installation of base station antennas within close frequency range in a co-located scenario constitutes a major interference for radio spectrum engineers. In a co-located setting involving a downlink frequency of CDMA2000 (1960 -1990MHz) and an uplink frequency of WCDMA (1920-1980MHz) as used in the telecommunication industry in Nigeria, the base station receiver is required to receive low amplitude desired signals in the presence of strong transmitting power signals resulting to sideband noise interference. The paper identifies the major mechanism of the sideband noise and proposes the application of a Butterworth Band Pass Filter (BBPF) as a mitigation technique. The technique was developed through the applications of empirical and mathematical analysis conducted in two different scenarios to evaluate the levels of the interference signals on the WCDMA receiver from CDMA2000 transmitter. The first scenario involved a standalone un-collocated WCDMA network while the second scenario involved a co-located network (CDMA2000 and WCDMA). A 52dB required attenuation specification was obtained for the BBPF design.},
 year = {2014}
}

Copy | Download

TY  - JOUR
T1  - Sideband Noise Mitigation in a Co-Located Network Involving CDMA2000 and WCDMA System
AU  - Nosiri Onyebuchi Chikezie
AU  - Onoh Gregory Nwachukwu
AU  - Chukwudebe Gloria Azogini
AU  - Azubogu Austin Chukwuemeka
Y1  - 2014/05/20
PY  - 2014
N1  - https://doi.org/10.11648/j.ajnc.20140302.11
DO  - 10.11648/j.ajnc.20140302.11
T2  - American Journal of Networks and Communications
JF  - American Journal of Networks and Communications
JO  - American Journal of Networks and Communications
SP  - 17
EP  - 24
PB  - Science Publishing Group
SN  - 2326-8964
UR  - https://doi.org/10.11648/j.ajnc.20140302.11
AB  - The installation of base station antennas within close frequency range in a co-located scenario constitutes a major interference for radio spectrum engineers. In a co-located setting involving a downlink frequency of CDMA2000 (1960 -1990MHz) and an uplink frequency of WCDMA (1920-1980MHz) as used in the telecommunication industry in Nigeria, the base station receiver is required to receive low amplitude desired signals in the presence of strong transmitting power signals resulting to sideband noise interference. The paper identifies the major mechanism of the sideband noise and proposes the application of a Butterworth Band Pass Filter (BBPF) as a mitigation technique. The technique was developed through the applications of empirical and mathematical analysis conducted in two different scenarios to evaluate the levels of the interference signals on the WCDMA receiver from CDMA2000 transmitter. The first scenario involved a standalone un-collocated WCDMA network while the second scenario involved a co-located network (CDMA2000 and WCDMA). A 52dB required attenuation specification was obtained for the BBPF design.
VL  - 3
IS  - 2
ER  -

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