论文信息 - Performance of DS-CDMA system in the space-time hyperbolic channel model

Performance of DS-CDMA system in the space-time hyperbolic channel model

In this paper, we determine expressions for the bit error rate (BER) performance and for the signal to interference ratio (SIR) of a direct-sequence code division multiple access (DS-CDMA) system over the space-time hyperbolic channel model for a macrocell environment. A simplified expression based on the improved Gaussian approximation (SEIGA) is used to evaluate the BER and the SIR in a wideband multipath channel. The multipath power delay profiles (PDP), which are generated by this channel have been used to evaluate the BER and the SIR for the DS-CDMA. The performance of DS-CDMA over the hyperbolic channel model is examined in different propagation scenarios (i.e. urban scenario, shadowed urban, and free space scenario) and with varying numbers of multipath components.

Z.M. Hussain | S.S. Mahmoud | P. O'Shea

[1] J. C. Liberti,et al. Accurate techniques to evaluate CDMA bit error rates in multipath channels with imperfect power control , 1995, Proceedings of GLOBECOM 1995 Mini.

[2] Michael B. Pursley,et al. Error Probabilities for Binary Direct-Sequence Spread-Spectrum Communications with Random Signature Sequences , 1987, IEEE Trans. Commun..

[3] Jack M. Holtzman,et al. A simple, accurate method to calculate spread-spectrum multiple-access error probabilities , 1992, IEEE Trans. Commun..

[4] Z.M. Hussain,et al. A space-time model for mobile radio channel with hyperbolically distributed scatterers , 2002, IEEE Antennas and Wireless Propagation Letters.

[5] Michael B. Pursley,et al. Performance of differentially coherent digital communications over frequency-selective fading channels , 1988, IEEE Trans. Commun..