Precise analysis of bit-error probability for asynchronous multicode DS-CDMA systems

A precise bit-error probability (BEP) analysis method is derived for a multicode direct-sequence code-division multiple-access (DS-CDMA) system in an additive white Gaussian noise channel. The method is applicable to a multicode DS-CDMA system with an arbitrary number of multiple code sequences, and any selection of multiple code sequences. The precise method gives results that discriminate the effect of the selection of different multiple code sequences on the BEP, whereas Gaussian approximations (GAs) do not. Thus, the new method can be used to select the best multicode set for a given system, a task that cannot be achieved using GAs. A two-step analytical procedure enables deriving an explicit, compact form for the CF of the receiver decision statistic in a DS-CDMA system with an arbitrary number of multiple code sequences, and for any selection of multiple code sequences.

[1]  Norman C. Beaulieu,et al.  Accurate DS-CDMA bit-error probability calculation in Rayleigh fading , 2002, IEEE Trans. Wirel. Commun..

[2]  Dan Keun Sung,et al.  Bit-error probabilities of multicode direct-sequence spread-spectrum multiple-access systems , 2001, IEEE Trans. Commun..

[3]  W. Press,et al.  Numerical Recipes in Fortran: The Art of Scientific Computing.@@@Numerical Recipes in C: The Art of Scientific Computing. , 1994 .

[4]  James S. Lehnert,et al.  Bit-to-bit error dependence in slotted DS/SSMA packet systems with random signature sequences , 1989, IEEE Trans. Commun..

[5]  Vijay K. Bhargava,et al.  Dynamic rate adaptation based on multidimensional multicode DS-CDMA in cellular wireless networks , 2003, IEEE Trans. Commun..

[6]  Qiang Wang,et al.  Concatenated Orthogonal/PN Spreading Sequences and Their Application to Cellular DS-CDMA Systems with Integrated Traffic , 1996, IEEE J. Sel. Areas Commun..

[7]  Dan Keun Sung,et al.  Capacities of Spectrally Overlaid Single-Code and , 2002 .

[8]  Joon Ho Cho,et al.  Average bit-error-rate performance of band-limited DS/SSMA communications , 2002, IEEE Trans. Commun..

[9]  Zhao Liu,et al.  Channel access and interference issues in multi-code DS-CDMA wireless packet (ATM) networks , 1996, Wirel. Networks.

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

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

[12]  Dan Keun Sung,et al.  Capacities of single-code and multicode DS-CDMA systems accommodating multiclass services , 1999 .

[13]  Tat-Ming Lok,et al.  Error probabilities for generalized quadriphase DS/SSMA communication systems with random signature sequences , 1996, IEEE Trans. Commun..

[14]  Tjeng Thiang Tjhung,et al.  BER performance comparison of single code and multicode DS/CDMA channelization schemes for high rate data transmission , 2001, IEEE Communications Letters.

[15]  Duk Kyung Kim,et al.  Capacity estimation for a multicode CDMA system with SIR-based power control , 2001, IEEE Trans. Veh. Technol..

[16]  F. A. Seiler,et al.  Numerical Recipes in C: The Art of Scientific Computing , 1989 .

[17]  E. A. Geraniotis,et al.  Error Probability for Direct-Sequence Spread-Spectrum Multiple-Access Communications - Part II: Approximations , 1982, IEEE Transactions on Communications.

[18]  Zhao Liu,et al.  Interference issues in multi-code CDMA networks , 1996, Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications.