J P L Hatchett and M Okada 2006 J. Phys. A: Math. Gen. 39 3883 doi:10.1088/0305-4470/39/15/003
J P L Hatchett1 and M Okada2
Show affiliationsWe investigate the detection dynamics of the Gibbs sampler for code-division multiple access (CDMA) multiuser detection. Our approach is based upon dynamical replica theory which allows an analytic approximation to the dynamics. We use this tool to investigate the basins of attraction when phase coexistence occurs and conclude that good decoding past the spinodal point is not practically possible with this algorithm. We examine the efficacy of our method by doing a comparison with Monte Carlo simulations.
84.40.Ua Telecommunications: signal transmission and processing; communication satellites
94A14 Modulation and demodulation
60G35 Applications (signal detection, filtering, etc.) (See also 62M20, 93E10, 93E11, 94Axx)
74G15 Numerical approximation of solutions
Issue 15 (14 April 2006)
Received 2 December 2005
Published 29 March 2006
J P L Hatchett and M Okada 2006 J. Phys. A: Math. Gen. 39 3883
Ann Merchant Boesgaard et al. 2003 ApJ 582 410
Carey E Floyd Jr et al 2006 Phys. Med. Biol. 51 3375
Laird M. Close et al 2003 ApJ 598 L35
Anthony J Guttmann et al 1998 J. Phys. A: Math. Gen. 31 8123
W. P. S. Meikle et al. 2007 ApJ 665 608
M Trhlík et al 1998 J. Phys.: Condens. Matter 10 7467
Rohta Takahashi 2004 ApJ 611 996
Rei Inoue and Kazuhiro Hikami 1999 J. Phys. A: Math. Gen. 32 6853
Jannie A Leach et al 2006 Class. Quantum Grav. 23 4915