A Novel Hybrid Multiple Access Scheme in Downlink for 4G Wireless Communications

Poonam Singh; Saswat Chakrabarti

doi:doi:10.11648/j.wcmc.20130104.14

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A Novel Hybrid Multiple Access Scheme in Downlink for 4G Wireless Communications

Poonam Singh, Saswat Chakrabarti

Published in International Journal of Wireless Communications and Mobile Computing (Volume 1, Issue 4)

Received: 18 July 2013 Published: 30 October 2013

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Abstract

In this paper, we present a hybrid multiple access scheme to increase the data rate and to provide more flexibility for 4G wireless communications. The proposed scheme utilizes a combination of the multiple access techniques TDMA, CDMA and OFDMA. It uses variable time slots, spreading factors and number of subcarriers to provide flexible data rates for different classes of users. The performance analysis of the proposed scheme is carried out for different modulation schemes used in downlink and expressions for multiple access interference (MAI) and bit error rate (BER) are derived. The parameters for this scheme are selected depending on available bandwidth, required data rates, number of users, type of service provided etc. It is found that this scheme provides better scalability and can support more number of users.

Published in	International Journal of Wireless Communications and Mobile Computing (Volume 1, Issue 4)
DOI	10.11648/j.wcmc.20130104.14
Page(s)	103-112
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), 2013. Published by Science Publishing Group

Keywords

Multiple Access Scheme, FDMA, TDMA, CDMA, OFDMA

References

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[11]	M. Haardt, A. Klein, R. Koehn, S. Oestreich, M. Purat, V. Sommer, T. Ulrich, "The TD-CDMA based UTRA TDD mode," IEEE Journal on Selected Areas in Communications, vol. 18 August 2000.
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[17]	H. Ishikawa, M. Furudate, T. Ohseki and T. Suzuki, "Performance Analysis of Adaptive Downlink Modulation Using OFDM and MC-CDMA for Future Mobile Communication System", ISSSTA2004, Sydney, Australia, 30 Aug.-2 Sep. 2004.
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APA Style

Poonam Singh, Saswat Chakrabarti. (2013). A Novel Hybrid Multiple Access Scheme in Downlink for 4G Wireless Communications. International Journal of Wireless Communications and Mobile Computing, 1(4), 103-112. https://doi.org/10.11648/j.wcmc.20130104.14

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ACS Style

Poonam Singh; Saswat Chakrabarti. A Novel Hybrid Multiple Access Scheme in Downlink for 4G Wireless Communications. Int. J. Wirel. Commun. Mobile Comput. 2013, 1(4), 103-112. doi: 10.11648/j.wcmc.20130104.14

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AMA Style

Poonam Singh, Saswat Chakrabarti. A Novel Hybrid Multiple Access Scheme in Downlink for 4G Wireless Communications. Int J Wirel Commun Mobile Comput. 2013;1(4):103-112. doi: 10.11648/j.wcmc.20130104.14

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@article{10.11648/j.wcmc.20130104.14,
  author = {Poonam Singh and Saswat Chakrabarti},
  title = {A Novel Hybrid Multiple Access Scheme in Downlink for 4G Wireless Communications},
  journal = {International Journal of Wireless Communications and Mobile Computing},
  volume = {1},
  number = {4},
  pages = {103-112},
  doi = {10.11648/j.wcmc.20130104.14},
  url = {https://doi.org/10.11648/j.wcmc.20130104.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.wcmc.20130104.14},
  abstract = {In this paper, we present a hybrid multiple access scheme to increase the data rate and to provide more flexibility for 4G wireless communications. The proposed scheme utilizes a combination of the multiple access techniques TDMA, CDMA and OFDMA. It uses variable time slots, spreading factors and number of subcarriers to provide flexible data rates for different classes of users. The performance analysis of the proposed scheme is carried out for different modulation schemes used in downlink and expressions for multiple access interference (MAI) and bit error rate (BER) are derived. The parameters for this scheme are selected depending on available bandwidth, required data rates, number of users, type of service provided etc. It is found that this scheme provides better scalability and can support more number of users.},
 year = {2013}
}

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TY  - JOUR
T1  - A Novel Hybrid Multiple Access Scheme in Downlink for 4G Wireless Communications
AU  - Poonam Singh
AU  - Saswat Chakrabarti
Y1  - 2013/10/30
PY  - 2013
N1  - https://doi.org/10.11648/j.wcmc.20130104.14
DO  - 10.11648/j.wcmc.20130104.14
T2  - International Journal of Wireless Communications and Mobile Computing
JF  - International Journal of Wireless Communications and Mobile Computing
JO  - International Journal of Wireless Communications and Mobile Computing
SP  - 103
EP  - 112
PB  - Science Publishing Group
SN  - 2330-1015
UR  - https://doi.org/10.11648/j.wcmc.20130104.14
AB  - In this paper, we present a hybrid multiple access scheme to increase the data rate and to provide more flexibility for 4G wireless communications. The proposed scheme utilizes a combination of the multiple access techniques TDMA, CDMA and OFDMA. It uses variable time slots, spreading factors and number of subcarriers to provide flexible data rates for different classes of users. The performance analysis of the proposed scheme is carried out for different modulation schemes used in downlink and expressions for multiple access interference (MAI) and bit error rate (BER) are derived. The parameters for this scheme are selected depending on available bandwidth, required data rates, number of users, type of service provided etc. It is found that this scheme provides better scalability and can support more number of users.
VL  - 1
IS  - 4
ER  -

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Author Information

Poonam Singh

Electronics & Comm. Engg. Dept., National Institute of Technology, Rourkela, India
Saswat Chakrabarti

GSSST, Indian Institute of Technology, Kharagpur, India

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APA Style

Poonam Singh, Saswat Chakrabarti. (2013). A Novel Hybrid Multiple Access Scheme in Downlink for 4G Wireless Communications. International Journal of Wireless Communications and Mobile Computing, 1(4), 103-112. https://doi.org/10.11648/j.wcmc.20130104.14

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ACS Style

Poonam Singh; Saswat Chakrabarti. A Novel Hybrid Multiple Access Scheme in Downlink for 4G Wireless Communications. Int. J. Wirel. Commun. Mobile Comput. 2013, 1(4), 103-112. doi: 10.11648/j.wcmc.20130104.14

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AMA Style

Poonam Singh, Saswat Chakrabarti. A Novel Hybrid Multiple Access Scheme in Downlink for 4G Wireless Communications. Int J Wirel Commun Mobile Comput. 2013;1(4):103-112. doi: 10.11648/j.wcmc.20130104.14

Copy | Download

@article{10.11648/j.wcmc.20130104.14,
  author = {Poonam Singh and Saswat Chakrabarti},
  title = {A Novel Hybrid Multiple Access Scheme in Downlink for 4G Wireless Communications},
  journal = {International Journal of Wireless Communications and Mobile Computing},
  volume = {1},
  number = {4},
  pages = {103-112},
  doi = {10.11648/j.wcmc.20130104.14},
  url = {https://doi.org/10.11648/j.wcmc.20130104.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.wcmc.20130104.14},
  abstract = {In this paper, we present a hybrid multiple access scheme to increase the data rate and to provide more flexibility for 4G wireless communications. The proposed scheme utilizes a combination of the multiple access techniques TDMA, CDMA and OFDMA. It uses variable time slots, spreading factors and number of subcarriers to provide flexible data rates for different classes of users. The performance analysis of the proposed scheme is carried out for different modulation schemes used in downlink and expressions for multiple access interference (MAI) and bit error rate (BER) are derived. The parameters for this scheme are selected depending on available bandwidth, required data rates, number of users, type of service provided etc. It is found that this scheme provides better scalability and can support more number of users.},
 year = {2013}
}

Copy | Download

TY  - JOUR
T1  - A Novel Hybrid Multiple Access Scheme in Downlink for 4G Wireless Communications
AU  - Poonam Singh
AU  - Saswat Chakrabarti
Y1  - 2013/10/30
PY  - 2013
N1  - https://doi.org/10.11648/j.wcmc.20130104.14
DO  - 10.11648/j.wcmc.20130104.14
T2  - International Journal of Wireless Communications and Mobile Computing
JF  - International Journal of Wireless Communications and Mobile Computing
JO  - International Journal of Wireless Communications and Mobile Computing
SP  - 103
EP  - 112
PB  - Science Publishing Group
SN  - 2330-1015
UR  - https://doi.org/10.11648/j.wcmc.20130104.14
AB  - In this paper, we present a hybrid multiple access scheme to increase the data rate and to provide more flexibility for 4G wireless communications. The proposed scheme utilizes a combination of the multiple access techniques TDMA, CDMA and OFDMA. It uses variable time slots, spreading factors and number of subcarriers to provide flexible data rates for different classes of users. The performance analysis of the proposed scheme is carried out for different modulation schemes used in downlink and expressions for multiple access interference (MAI) and bit error rate (BER) are derived. The parameters for this scheme are selected depending on available bandwidth, required data rates, number of users, type of service provided etc. It is found that this scheme provides better scalability and can support more number of users.
VL  - 1
IS  - 4
ER  -

Copy | Download