Performance Analysis of Low-Complexity Multiuser STBC MC-CDMA System

Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 309)

Abstract

In this paper, a low complexity and efficient multiuser space time block code multicarrier code division multiple access (STBC MC-CDMA) for downlink wireless communication system is proposed. STBC MC-CDMA provides diversity gain to improve transmission efficiency of mobile wireless systems where both STBC encoder and decoder are in time domain thus reducing the complexity at the receiver side. Proposed STBC MC-CDMA scheme achieves a diversity order of 2 without channel state information (CSI) at the transmitter under flat fading conditions without bandwidth expansion. In this paper, the STBC MC-CDMA is compared with the STBC OFDM scheme under Rayleigh fading channel and AWGN channel using zero forcing (ZF) linear detection scheme and as anticipated the proposed STBC MC-CDMA outperforms STBC OFDM. Simulation results verify this.

Keywords

STBC MC-CDMA CSI Linear detection schemes Rayleigh fading channel 

References

  1. 1.
    Fazel, K., Kaiser, S.: Multi-carrier and spread spectrum systems: From OFDM and MC-CDMA to LTE and WiMAX. Wiley (2008)Google Scholar
  2. 2.
    Hara, S., Prasad, R.: Overview of multicarrier CDMA. IEEE Commun. Mag. 35(12), 126–133 (1997)CrossRefGoogle Scholar
  3. 3.
    Yang, L.-L.: Multicarrier communications. Wiley (2009) Google Scholar
  4. 4.
    Alamouti, S.: A simple transmit diversity technique for wireless communications. IEEE J. Sel. Areas Commun. 16(8), 1451–1458 (1998)CrossRefGoogle Scholar
  5. 5.
    Hassib, M.D., Singh, M., Ismail, M., Nordin, R.: Efficient and low complexity STBC-OFDM scheme over fading channel. In: 18th Asia-Pacific Conference on Communications (APCC), 2012. IEEE, pp. 402–406 (2012)Google Scholar
  6. 6.
    Chen, J.-D., Ueng, F.-B., Chang, J.-C., Su, H.: Performance analysis of OFDM-CDMA receivers in multipath fading channels. IEEE Trans. Veh. Technol. 58(9), 4805–4818 (2009)CrossRefGoogle Scholar
  7. 7.
    D’Orazio, L., Sacchi, C., Fedrizzi, R., De Natale, F.G.: An adaptive minimum-BER approach for multi-user detection in STBC-MIMO MC-CDMA systems. In: Global Telecommunications Conference, 2007. GLOBECOM’07. IEEE, pp. 3427–3431 (2007)Google Scholar

Copyright information

© Springer India 2015

Authors and Affiliations

  1. 1.Department of Electronics and Communication EngineeringNational Institute of Technology RourkelaRourkelaIndia

Personalised recommendations