Abstract
This paper presents a new joint channel estimation method for Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) systems based on a Singular Value Decomposition (SVD) reduced-rank technique. The system capacity is increased by increasing the highest number of users in one time slot. The additional channel estimation processing required for the increasing number of users is solved by adopting the reduced-rank technique, which estimates a limited number of parameters that are needed to describe the channel matrix and reduce the dimensionality of this matrix. Simulation results prove the validity of the proposed reduced-rank technique for channel estimation accuracy enhancing. Additionally, it is shown that the detectors based on the reduced-rank estimators outperform traditional channel estimators, contributing to 7.8 and 6.9 dB BER performance improvements for indoor and vehicular channels, respectively.
References
3GPP TS 25.102, V10.0.0, User equipment (UE) radio transmission and reception (TDD) (Dec. 2010)
3GPP TS 25.221, V7.4.0, Physical channels and mapping of transport channels onto physical channels (TDD) (Sept. 2007)
3GPP TS 25.223, V9.0.0, Technical specification group radio access network; spreading and modulation (TDD) (Dec. 2009)
M.1225 ITU-R Recommendation M.1225, Guidelines for evaluation of radio transmission technologies for IMT-2000 (1997)
P. Chitrapu, A. Brianncon, Wideband TDD, WCDMA for the Unpaired Spectrum (John Wiley and Sons, London, 2004)
Y. Hua, M. Nikpour, P. Stoica, Optimal reduced-rank estimation and filtering. IEEE Trans. Signal Process. 49(3), 457–469 (2001)
G. Liu, J. Zhang, P. Zhang, Y. Wang, X. Liu, S. Li, Evolution map from TD-SCDMA to future B3G TDD. IEEE Commun. Mag. 44(3), 54–61 (2006)
M. Peng, W. Wang, H.H. Chen, TD-SCDMA evolution. IEEE Veh. Technol. Mag. 5(2), 28–41 (2010)
M. Peng, W. Wang, J. Zhang, Investigation of capacity and call admission control schemes in TD-SCDMA uplink systems employing smart antenna techniques. Wirel. Commun. Mob. Comput. 10(2), 241–256 (2010)
L.L. Scharf, The SVD and reduced rank signal processing. Signal Process. 25(2), 113–133 (1991)
X. Song, K. Li, A. Hu, Two-stage channel estimation algorithm for TD-SCDMA system employing multi-cell joint detection. Circuits Syst. Signal Process. 26(6), 76–80 (2007)
B. Steiner, P. Jung, Optimum and suboptimum channel estimation for the uplink of CDMA mobile radio systems with joint detection. Eur. Trans. Telecommun. 5(1), 39–50 (1994)
D.N. Vizireanu, S. Halunga, G. Marghescu, Morphological skeleton decomposition interframe interpolation method. J. Electron. Imaging 19(2), 1–3 (2010)
D.N. Vizireanu, Morphological shape decomposition interframe interpolation method. J. Electron. Imaging 17(1), 1–5 (2008)
D.N. Vizireanu, R.M. Udrea, Visual-oriented morphological foreground content grayscale frames interpolation method. J. Electron. Imaging 18(2), 1–3 (2009)
Sh. Yang, Z. Xiaolin, L. Sh, An improved channel estimation method of TD-SCDMA system, in Conference of ICICTA 2011, China (2011), pp. 439–442
L. Zhaogan, R. Yuan, Z. Taiyi, W. Liejun, Multiuser MIMO OFDM based TDD/TDMA for next generation wireless communication systems. Wirel. Pers. Commun. 52(2), 289–324 (2010)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Marzook, A.K., Ismail, A., Ali, B.M. et al. Singular Value Decomposition Rank-Deficient-Based Estimators in TD-SCDMA Systems. Circuits Syst Signal Process 32, 205–221 (2013). https://doi.org/10.1007/s00034-012-9443-9
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00034-012-9443-9