Improved MUSIC algorithm for estimation of time delays in asynchronous DS-CDMA systems

  title={Improved MUSIC algorithm for estimation of time delays in asynchronous DS-CDMA systems},
  author={Thomas Ostman and Stefan Parkvall and Bj{\"o}rn E. Ottersten},
  journal={Conference Record of the Thirty-First Asilomar Conference on Signals, Systems and Computers (Cat. No.97CB36136)},
  pages={838-842 vol.1}
An algorithm for time delay estimation in an asynchronous direct-sequence code-division multiple access (DS-CDMA) system which exploits the structure of the system better than previously known algorithms, is presented. The different algorithms are compared through simulation and asymptotic analysis (large number of vector samples). For a typical scenario it is shown that the proposed algorithm decreases the standard deviation of the time delay errors with a factor of approximately 2. 

From This Paper

Figures, tables, and topics from this paper.
31 Citations
6 References
Similar Papers


Publications citing this paper.
Showing 1-10 of 31 extracted citations


Publications referenced by this paper.
Showing 1-6 of 6 references

Analysis of an Improved MUSIC Algorithm for Estimation of Time Delays in Asynchronous DS-CDMA Systems

  • T. Östman, S. Parkvall, B. Ottersten
  • Submitted to IEEE Transactions on Communications,
  • 1997
2 Excerpts

Code-Division Multiple Access Systems: Near-far Resistant Parameter Estimation and Data Detection

  • S. Parkvall, Direct-Sequence
  • PhD thesis, Kungliga Tekniska Högskolan,
  • 1996
3 Excerpts

Products and Matrix Calculus with Applications

  • A. Graham, Kronecker
  • Ellis Horwood Ltd,
  • 1981
1 Excerpt

Signal Subspace Approach to Multiple Emitter Location and Spectral Estimation

  • A R.O. Schmidt
  • PhD thesis,
  • 1981
1 Excerpt

Similar Papers

Loading similar papers…