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Home»Articles»Analysis of Outage Probability for MC-CDMA Systems Using Different Spread Codes

Analysis of Outage Probability for MC-CDMA Systems Using Different Spread Codes

Author : Sanjay Deshmukh and Udhav Bhosle
Volume 7 No.2 July-December 2018 pp 107-114

Abstract

Modern communication systems demand proper utilisation of bandwidth, high throughput, integration of services and flexibility. To meet these requirements, spread spectrum code-division multiple access (CDMA) techniques have been proposed for various wireless communication systems. Here the individual user is assigned a unique binary code called spreading code used to increase capacity and provide higher robustness to interference. This paper investigates outage probability performance of MIMO multicarrier spread spectrum code-division multiple access (CDMA) with different robust spreading codes namely Walsh-Hadamard (WH), Gold and Kasami codes. Outage probability Poutage is significant performance measure to evaluate the effect of co-channel interference. System’s performance is initially evaluated in terms of outage probability by varying spreading factor (code length L) L= 4, 16, 64,256 for the number of subcarriers (NC) NC =4. In the second case spread factor SF is kept constant at L=64 and Poutage is analysed for varying number of subcarriers NC = 4, 16, 64. Outage probability analysis for system shows that under similar load conditions Kasami spread sequences outperforms Gold codes and WH codes in terms of outage probability for different spreading factor (SF) of codes and for varying number of subcarriers. This is because of its improved peak isolation and low cross-correlation than other.

Keywords

Multi-Carrier (MC) Systems, Code Division Multiple Access (CDMA), Outage Probability, Spreading Codes, Wireless Communication

Full Text:

References

[1] Esmael H. Dinan and Bijan Jabbari, “Spreading codes for direct sequence CDMA and wideband CDMA cellular networks”, IEEE Communication Magazine, Vol. 36, No. 9, pp. 48-54, Sep 1998.

[2] Sanjay Deshmukh and Udhav Bhosle, “Performance Analysis of Spread Spectrum System over Fading Channel Models”, IEEE International Conference on Communication and Signal Processing (ICCSP’ 16), Tamil Nadu, India, pp. 662-666, April 16.

[3] Juan M. Velazquez-Gutierrez, and Cesar Vargas-Rosales, “Sequence Sets in Wireless Communication Systems: A Survey”, IEEE Communication surveys and tutorials, 2016.

[4] Luciano Tomba, “Outage Probability in CDMA Cellular Systems with Discontinuous Transmission”, IEEE 4th International Symposium on Spread Spectrum Techniques and Applications Proceedings, Vol. 2, pp. 481-485, 1996.

[5] Ramjee Prasad and Shinsuke Hara, “An Overview of Multi-Carrier CDMA”, IEEE 4thInternational Symposium on Spread Spectrum Techniques and Applications Proceedings, Vol. 1, pp. 107-114, Dec 1997.

[6] Olanrewaju B. Wojuola, Stanley H. Mneney and ViranjaySrivastava, “Performance of an STBC-CDMA system in a fading channel”, Intl. Conference on Computing and Network Communications, pp. 639- 642, Dec. 2015.

[7] Karsten Bruninghaus and Hermann Rohling, “Multi-carrier spread spectrum and its relationship to single-carrier transmission”, 48th IEEE Vehicular Technology Conference, VTC 98, pp. 2329-2332, May 1998.

[8] BKazuya Tsubone and Akio Tsuneda, “Acquisition performance of spreading codes for CDMA-based local positioning systems under Doppler effect”, IEEE International Conference on Information and Communication Technology Convergence (ICTC), pp. 527-529, 2016.

[9] Goldsmith, Wireless Communications. Cambridge University Press, 2005.

[10] M. D. Turkmani and U. S. Goni, “Performance evaluation of maximal-length, gold and Kasami codes as spreading sequences in CDMA systems”, IEEE International Conference on Universal Personal Communications, Vol. 2, pp. 970-974, 1993.

[11] Andrea Conti, “MC-CDMA Bit Error Probability and Outage Minimization through Partial Combining”, IEEE Commun., Vol. 9, pp. 1055-1057, Dec 2005.

[12] B. Vojcic, L. Milstein and R. Pickholtz, “Outage Probability for the Uplink of a DS-CDMA System Operating over an LEO Mobile Satellite Channel”, in 5th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, Wireless Networks-Catching the Mobile Future, pp. 574–578, 1994.

[13] M. Lopez-Benitez, “Outage Probability and Average Error Performance of Modulation Schemes under Nakagami-q(Hoyt) and
Nakagami-n (Rice) Fading Channels”, in 10th IEEE International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP), pp. 1-6, 2016.

[14] D. Torrieri and M. C. Valenti, “The Outage Probability of a Finite Ad Hoc Network in Nakagami Fading”, IEEE Trans. Commun , Vol. 60, No. 11, pp. 2960-2970, Dec. 2012.

[15] L.Tomba, “Outage probability in CDMA cellular systems with discontinuous transmission”, IEEE Spread Spectrum Techniques and Applications Proceedings, Vol. 2, pp. 481-485, 1996.

[16] K. M. S. Huq, M. Shahid, and J. Rodriguez, “Outage Probability Analysis for Device-to-Device System”, in IEEE International Conference on communications QoS, Reliability and Modeling Symposium, pp.1-5, 2016.

Asian Journal of Electrical Sciences (AJES) is a quarterly international peer-reviewed journal of Electrical Sciences. One of the objectives of this journal is to disseminate knowledge on various research issues connected with the topics include, but are not limited to:

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Modern communication systems demand proper utilisation of bandwidth, high throughput, integration of services and flexibility. To meet these requirements, spread spectrum code-division multiple access (CDMA) techniques have been proposed for various wireless communication systems. Here the individual user is assigned a unique binary code called spreading code used to increase capacity and provide higher robustness to interference. This paper investigates outage probability performance of MIMO multicarrier spread spectrum code-division multiple access (CDMA) with different robust spreading codes namely Walsh-Hadamard (WH), Gold and Kasami codes. Outage probability Poutage is significant performance measure to evaluate the effect of co-channel interference. System’s performance is initially evaluated in terms of outage probability by varying spreading factor (code length L) L= 4, 16, 64,256 for the number of subcarriers (NC) NC =4. In the second case spread factor SF is kept constant at L=64 and Poutage is analysed for varying number of subcarriers NC = 4, 16, 64. Outage probability analysis for system shows that under similar load conditions Kasami spread sequences outperforms Gold codes and WH codes in terms of outage probability for different spreading factor (SF) of codes and for varying number of subcarriers. This is because of its improved peak isolation and low cross-correlation than other.

Editor-in-Chief
Dr. Koray Ulgen
Department of energy engineering, Ege University, Turkey
[email protected]
Editorial Advisory Board
Dr. Rasyidah Binti Mohamad Idris
Department of Electrical Power Engineering, Universiti Teknologi Malaysia
[email protected]
Dr. Norhaliza Abdul Wahab
Department of Control & Mechatronics Engineering, Universiti Teknologi Malaysia
[email protected]
Prof. Md Irfan Ahmed
Department of Electrical Engineering, Career Point University, Rajasthan, India
[email protected]
Dr. Sallehuddin Bin Ibrahim
Department of Control And Mechatronics Engineering, Universiti Teknologi Malaysia
[email protected]
Dr. Naziha bt. Ahmad Azli
Department of Electrical Power Engineering, Universiti Teknologi Malaysia
[email protected]
Dr. Sharul Kamal Bin Abdul Rahim
Department of Communication Engineering, Universiti Teknologi Malaysia
[email protected]
Dr. Jasrul Jamani Bin Jamian
Department of Electrical Power Engineering, Universiti Teknologi Malaysia
[email protected]
Dr. T. Rajesh
Department of EEE, INFO Institute of Engineering, Coimbatore, India
[email protected]
Dr. Mohamad Kamal B. A. Rahim
Department of Communication Engineering, Universiti Teknologi Malaysia
[email protected]
Dr. Sophan Wahyudi Bin Nawawi
Department of Control and Mechatronics Engineering, Universiti Teknologi Malaysia
[email protected]
Dr. Nor Hisham Haji Khamis
Department of Communication Engineering, Universiti Teknologi Malaysia
[email protected]
Dr. Cheng Siong Lim
Department of Control and Mechatronic Engineering,Universiti Teknologi Malaysia
[email protected]
Dr. Sharifah Kamilah Bt Syed Yusof
Department of Electrical Engineering Universiti Teknologi Malaysia
[email protected]
Dr. Shahdan Sudin
Department of Control and Mechatronic Engineering, Universiti Teknologi Malaysia
[email protected]
Dr. Razali Bin Ngah
Department of Electrical Engineering, Universiti Teknologi Malaysia
[email protected]

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    Editorial Note

    Editorial Dr. Koray Ulgen

    Editor-in-Chief
    Dr. Koray Ulgen
    Department of energy engineering, Ege University, Turkey
    [email protected]
    Editorial Advisory Board
    Dr. Rasyidah Binti Mohamad Idris
    Department of Electrical Power Engineering, Universiti Teknologi Malaysia
    [email protected]
    Dr. Norhaliza Abdul Wahab
    Department of Control & Mechatronics Engineering, Universiti Teknologi Malaysia
    [email protected]
    Prof. Md Irfan Ahmed
    Department of Electrical Engineering, Career Point University, Rajasthan, India
    [email protected]
    Dr. Sallehuddin Bin Ibrahim
    Department of Control And Mechatronics Engineering, Universiti Teknologi Malaysia
    [email protected]
    Dr. Naziha bt. Ahmad Azli
    Department of Electrical Power Engineering, Universiti Teknologi Malaysia
    [email protected]
    Dr. Sharul Kamal Bin Abdul Rahim
    Department of Communication Engineering, Universiti Teknologi Malaysia
    [email protected]
    Dr. Jasrul Jamani Bin Jamian
    Department of Electrical Power Engineering, Universiti Teknologi Malaysia
    [email protected]
    Dr. T. Rajesh
    Department of EEE, INFO Institute of Engineering, Coimbatore, India
    [email protected]
    Dr. Mohamad Kamal B. A. Rahim
    Department of Communication Engineering, Universiti Teknologi Malaysia
    [email protected]
    Dr. Sophan Wahyudi Bin Nawawi
    Department of Control and Mechatronics Engineering, Universiti Teknologi Malaysia
    [email protected]
    Dr. Nor Hisham Haji Khamis
    Department of Communication Engineering, Universiti Teknologi Malaysia
    [email protected]
    Dr. Cheng Siong Lim
    Department of Control and Mechatronic Engineering,Universiti Teknologi Malaysia
    [email protected]
    Dr. Sharifah Kamilah Bt Syed Yusof
    Department of Electrical Engineering Universiti Teknologi Malaysia
    [email protected]
    Dr. Shahdan Sudin
    Department of Control and Mechatronic Engineering, Universiti Teknologi Malaysia
    [email protected]
    Dr. Razali Bin Ngah
    Department of Electrical Engineering, Universiti Teknologi Malaysia
    [email protected]

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