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Erschienen in: Wireless Personal Communications 3/2021

27.02.2021

Independent Code Division Multiple Access in DS-CDMA

verfasst von: Irfan Anjum, Aqeel A. Syed, Azhar A. Rizvi

Erschienen in: Wireless Personal Communications | Ausgabe 3/2021

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Abstract

An independent component analysis (ICA) based CDMA receiver is proposed, which in addition to the independence of users also exploits the independence of pseudo-codes in user signal separation. The proposed scheme is termed as independent code division multiple access in contrast to orthogonal code division multiple access being used in conventional CDMA receivers. Independence of pseudo-codes has been invoked by introducing the so-called independent Gram-Schmidt process in a deflation based ICA algorithm. The independence via Gram-Schmidt process is claimed by taking the inner product of successive vectors in a nonlinearly transformed Hilbert space, incorporating higher order statistics, instead of that in the original Euclidean space. The proposed receiver has been shown to outperform the existing CDMA receivers, in terms of bit error rate, through simulations. Moreover, the introduction of nonlinear transformation is shown to have no adverse effect on the convergence of the original deflation based ICA algorithm in terms of number of iterations apart from the computational cost of nonlinear transformation at each step. Gold codes are used for the demonstration of the proposed scheme although more work is needed to be done in order to identify the code family more amenable to the independence property.
Literatur
1.
Zurück zum Zitat Albataineh, Z., & Salem, F. M. (2017). Adaptive blind CDMA receivers based on ICA filtered structures. Circuits, Systems, and Signal Processing, 36(8), 3320–3348. CrossRef Albataineh, Z., & Salem, F. M. (2017). Adaptive blind CDMA receivers based on ICA filtered structures. Circuits, Systems, and Signal Processing, 36(8), 3320–3348. CrossRef
2.
Zurück zum Zitat Dahlman, E., Parkvall, S., & Skld, J. (2011). 4G LTE/LTE-advanced for mobile broadband. Oxford: Academic. Dahlman, E., Parkvall, S., & Skld, J. (2011). 4G LTE/LTE-advanced for mobile broadband. Oxford: Academic.
3.
Zurück zum Zitat Cristescu, R., Ristaniemi, T., Joutsensalo, J., & Karhunen, J. (2000). Blind separation of convolved mixtures for CDMA systems. In European signal processing conference, Tampere (pp. 1–4). Cristescu, R., Ristaniemi, T., Joutsensalo, J., & Karhunen, J. (2000). Blind separation of convolved mixtures for CDMA systems. In European signal processing conference, Tampere (pp. 1–4).
4.
Zurück zum Zitat Ekici, O., & Yongacoglu, A. (2004). Application of noisy-independent component analysis for CDMA signal separation. In VTC2004-fall (Vol. 5, pp. 3812–3816). Ekici, O., & Yongacoglu, A. (2004). Application of noisy-independent component analysis for CDMA signal separation. In VTC2004-fall (Vol. 5, pp. 3812–3816).
5.
Zurück zum Zitat El-Khamy, S. E., & Abed, M. (2006). Performance enhancement of downlink multiuser DS-CDMA detectors using processing by independent component analysis. In International conference on computer engineering and systems, Cairo (pp. 237–243). El-Khamy, S. E., & Abed, M. (2006). Performance enhancement of downlink multiuser DS-CDMA detectors using processing by independent component analysis. In International conference on computer engineering and systems, Cairo (pp. 237–243).
6.
Zurück zum Zitat Ristaniemi, T., & Joutsensalo, J. (2000). Advanced ICA-based receivers for DS-CDMA systems. In 11th IEEE international symposium on personal indoor and mobile radio communications. PIMRC 2000. Proceedings (Cat. No.00TH8525), London (Vol. 1, pp. 276–281). Ristaniemi, T., & Joutsensalo, J. (2000). Advanced ICA-based receivers for DS-CDMA systems. In 11th IEEE international symposium on personal indoor and mobile radio communications. PIMRC 2000. Proceedings (Cat. No.00TH8525), London (Vol. 1, pp. 276–281).
7.
Zurück zum Zitat Ristaniemi, T., & Joutsensalo, J. (1999). Independent component analysis with code information utilization in DS-CDMA signal separation. In Proc. IEEE global telecommunications conference (GLOBECOM’99), Rio de Janeiro, December 5–9 (Vol. 1a, pp. 320–324). Ristaniemi, T., & Joutsensalo, J. (1999). Independent component analysis with code information utilization in DS-CDMA signal separation. In Proc. IEEE global telecommunications conference (GLOBECOM’99), Rio de Janeiro, December 5–9 (Vol. 1a, pp. 320–324).
8.
Zurück zum Zitat Ristaniemi, T., & Joutsensalo, J. (2002). Advanced ICA-based receivers for block fading DS-CDMA channels. Signal Processing, 82(3), 417–431. CrossRef Ristaniemi, T., & Joutsensalo, J. (2002). Advanced ICA-based receivers for block fading DS-CDMA channels. Signal Processing, 82(3), 417–431. CrossRef
9.
Zurück zum Zitat Ristaniemi, T., & Joutsensalo, J. (1998). Novel scheme for blind symbol separation in CDMA downlink. In Proc. 32nd Asilomar conference on signals, systems, and computers, Monterey (pp. 1853–1857). Ristaniemi, T., & Joutsensalo, J. (1998). Novel scheme for blind symbol separation in CDMA downlink. In Proc. 32nd Asilomar conference on signals, systems, and computers, Monterey (pp. 1853–1857).
10.
Zurück zum Zitat Hyvarinen, A., Karhunen, J., & Oja, E. (2001). Independent component analysis. New York: Wiley. CrossRef Hyvarinen, A., Karhunen, J., & Oja, E. (2001). Independent component analysis. New York: Wiley. CrossRef
11.
Zurück zum Zitat Jen, C.-W., & Jou, S.-J. (2014). Blind ICA detection based on second-order cone programming for MC-CDMA system. EURASIP Journal on Advances in Signal Processing, 151, 1–14. Jen, C.-W., & Jou, S.-J. (2014). Blind ICA detection based on second-order cone programming for MC-CDMA system. EURASIP Journal on Advances in Signal Processing, 151, 1–14.
12.
Zurück zum Zitat Luo, Z., & Zhu, L. D. (2015). A charrelation matrix-based blind adaptive detector for DS-CDMA systems. Sensors, 15, 20152–20168. CrossRef Luo, Z., & Zhu, L. D. (2015). A charrelation matrix-based blind adaptive detector for DS-CDMA systems. Sensors, 15, 20152–20168. CrossRef
13.
Zurück zum Zitat Lou, Z., & Li, C. (2016). Second-order code programming based robust blind multiuser detector for CDMA systems. International Journal of Future Generation Communication and Networking, 9(9), 153–168. CrossRef Lou, Z., & Li, C. (2016). Second-order code programming based robust blind multiuser detector for CDMA systems. International Journal of Future Generation Communication and Networking, 9(9), 153–168. CrossRef
14.
Zurück zum Zitat Glisic, S., & Vucetic, B. (1997). Spread spectrum CDMA systems for wireless communications (1st ed.). Boston: Artech House. Glisic, S., & Vucetic, B. (1997). Spread spectrum CDMA systems for wireless communications (1st ed.). Boston: Artech House.
15.
Zurück zum Zitat Bensely, S., & Aazhang, B. (1998). Subspace-based channel estimation for code division multiple access communication systems. IEEE Transactions on Communications, 44(8), 1009–1020. CrossRef Bensely, S., & Aazhang, B. (1998). Subspace-based channel estimation for code division multiple access communication systems. IEEE Transactions on Communications, 44(8), 1009–1020. CrossRef
16.
Zurück zum Zitat Hyvarinen, A., & Oja, E. (2000). Independent component analysis: algorithms and applications. Neural Networks, 13(4–5), 411–430. CrossRef Hyvarinen, A., & Oja, E. (2000). Independent component analysis: algorithms and applications. Neural Networks, 13(4–5), 411–430. CrossRef
17.
Zurück zum Zitat Hyvarinen, A. (1997). A fast fixed-point algorithm for ICA. Neural Computation, 9, 1483–1492. CrossRef Hyvarinen, A. (1997). A fast fixed-point algorithm for ICA. Neural Computation, 9, 1483–1492. CrossRef
18.
Zurück zum Zitat Hyvarinen, A. (1999). Gaussian moments for noisy independent component analysis. IEEE Signal Processing Letters, 6, 145–147. CrossRef Hyvarinen, A. (1999). Gaussian moments for noisy independent component analysis. IEEE Signal Processing Letters, 6, 145–147. CrossRef
19.
Zurück zum Zitat Ristaniemi, T., & Joutsensalo, J. (1999). On the performance of blind source separation in CDMA downlink. In Proceedings of the international workshop on independent component analysis and signal separation, Aussois (pp. 437–441). Ristaniemi, T., & Joutsensalo, J. (1999). On the performance of blind source separation in CDMA downlink. In Proceedings of the international workshop on independent component analysis and signal separation, Aussois (pp. 437–441).
20.
Zurück zum Zitat Yun-rui, G., Di, H., Chen, H., & Ling-Ge, J. (2008). A HOS-based blind signal extraction method for chaotic MIMO systems. Journal of Shanghai Jiaotong University (Science), 13(1), 21–25. CrossRef Yun-rui, G., Di, H., Chen, H., & Ling-Ge, J. (2008). A HOS-based blind signal extraction method for chaotic MIMO systems. Journal of Shanghai Jiaotong University (Science), 13(1), 21–25. CrossRef
21.
Zurück zum Zitat Feller, W. (1968). Probability theory and its applications (3rd ed.). New York: Wiley. MATH Feller, W. (1968). Probability theory and its applications (3rd ed.). New York: Wiley. MATH
22.
Zurück zum Zitat Jutten, C., & Herault, J. (1991). Blind separation of sources, part I: An adaptive algorithm based on neuromimetic architecture. Signal Processing, 24, 1–10. CrossRef Jutten, C., & Herault, J. (1991). Blind separation of sources, part I: An adaptive algorithm based on neuromimetic architecture. Signal Processing, 24, 1–10. CrossRef
23.
Zurück zum Zitat Hyvarinen, A. (1999). Fast and robust fixed-point algorithms for independent component analysis. IEEE Transactions on Neural Networks, 10, 626–634. CrossRef Hyvarinen, A. (1999). Fast and robust fixed-point algorithms for independent component analysis. IEEE Transactions on Neural Networks, 10, 626–634. CrossRef
24.
Zurück zum Zitat Miettinen, J., Nordhausen, K., Oja, H., & Taskinen, S. (2014). Deflation-based fast ICA with adaptive choices of nonlinearities. IEEE Transactions on Signal Processing, 62(21), 5716–5724. MathSciNetCrossRef Miettinen, J., Nordhausen, K., Oja, H., & Taskinen, S. (2014). Deflation-based fast ICA with adaptive choices of nonlinearities. IEEE Transactions on Signal Processing, 62(21), 5716–5724. MathSciNetCrossRef
25.
Zurück zum Zitat Raju, G., & Charoensakwiroj, J. (2003). Orthogonal codes performance in multi-code CDMA. In IEEE int. conf. on systems, man and cybernetics (Vol. 2, pp. 1928–1931). Raju, G., & Charoensakwiroj, J. (2003). Orthogonal codes performance in multi-code CDMA. In IEEE int. conf. on systems, man and cybernetics (Vol. 2, pp. 1928–1931).
26.
Zurück zum Zitat Turkmani, A. M. D., & Goni, U. S. (1993). Performance evaluation of maximal length, gold and Kasami codes as spreading sequences in CDMA systems. ICUPC, 2, 970–974. Turkmani, A. M. D., & Goni, U. S. (1993). Performance evaluation of maximal length, gold and Kasami codes as spreading sequences in CDMA systems. ICUPC, 2, 970–974.
27.
Zurück zum Zitat Proakis, J. (2001). Digital communications (4th ed.). New York: McGraw-Hill. MATH Proakis, J. (2001). Digital communications (4th ed.). New York: McGraw-Hill. MATH
28.
Zurück zum Zitat Taneja, H. C. (2009). Statistical methods for engineering and sciences. New Delhi: I K International Publishing House. Taneja, H. C. (2009). Statistical methods for engineering and sciences. New Delhi: I K International Publishing House.
Metadaten
Titel
Independent Code Division Multiple Access in DS-CDMA
verfasst von
Irfan Anjum
Aqeel A. Syed
Azhar A. Rizvi
Publikationsdatum
27.02.2021
Verlag
Springer US
Erschienen in
Wireless Personal Communications / Ausgabe 3/2021
Print ISSN: 0929-6212
Elektronische ISSN: 1572-834X
DOI
https://doi.org/10.1007/s11277-020-07443-7

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