Search for dissertations about: "Code Division Multiple Access"

Showing result 11 - 15 of 39 swedish dissertations containing the words Code Division Multiple Access.

  2. 11. Interference Cancellation for DS/CDMA Systems in Flat Fading Channels

    Author : Ann-Louise Johansson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; mixed modulation; direct-sequence code division multiple access DS CDMA ; multiuser detection.; multiple data rates; parallel channels; multicode; interference cancellation;

    Abstract : This thesis investigates interference cancellation in direct-sequence codedivision multiple access (DS/CDMA) systems that support multiple data rates.Two approaches for implementing multiple data rates are considered. Oneis the use of mixed modulation. The second is the use of parallel channels. READ MORE

  4. 12. Channel Coding and Multiuser Detection for CDMA and Wireless Communications

    Author : Pål Orten; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; rate compatible punctured convolutional RCPC codes; optimum distance spectrum ODS ; low-rate convolutional codes; interference cancellation; code-division multiple-access CDMA ; sequential decoding; automatic repeat request ARQ ; multiuser detection; maximum free distance MFD ; nested convolutional codes; tailbiting; rate matching;

    Abstract : Next generation wireless communication systems will require support for many different applications as well as improved quality compared to existing second generation systems like GSM (Global System for Mobile communications). Since there will be more users and higher data rates, the capacity must also be increased. READ MORE

  5. 13. Iterative least squares techniques with applications to adaptive antennas and CDMA-systems

    Author : Patrik Bohlin; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; channel parameter estimation; code-division-multiple-access CDMA ; adaptive antennas; expectation-maximization EM ; iterative least squares; synchronization; interference rejection;

    Abstract : .... READ MORE

  6. 14. Multiuser detection in CDMA : combinatorial optimization methods

    Author : Peng Hui Tan; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; maximum-likelihood detection; optimization methods; multiuser detection; code-division multiple access system;

    Abstract : .... READ MORE

  7. 15. On synchronization of CDMA systems

    Author : Fredrik Malmsten; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; code-spread CDMA CS-CDMA ; maximum-likelihood; channel parameter estimation; multipath; synchronization; near-far resistance; direct-sequence code-division multiple-access DS-CDMA ;

    Abstract : .... READ MORE