Search for dissertations about: "orthogonal frequency division multiplex"

Found 3 swedish dissertations containing the words orthogonal frequency division multiplex.

  2. 1. Channel Related Optimization of Wireless Communication Systems

    Author : Fredrik Tufvesson; Institutionen för elektro- och informationsteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; time division duplex; multicarrier; Radio communication; orthogonal frequency division multiplex; channel estimation; pilot symbol assisted modulation; sub-channel spacing; sub-channel bandwidth; interchannel interference; cyclic prefix; intersymbol interference; Rayleigh fading; precoding; pre-compensation;

    Abstract : This thesis deals with different optimization problems in the design of wireless communication systems. It is mainly directed to the design of systems based on multicarrier techniques and orthogonal frequency division multiplex, OFDM, but some of the problems apply to single carrier systems as well. READ MORE

  4. 2. Design of Wireless Communication Systems -- Issues on Synchronization, Channel Estimation and Multi-Carrier Systems

    Author : Fredrik Tufvesson; Institutionen för elektro- och informationsteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; pre-compensation; pilot pattern; Elektronik; orthogonal frequency division multiplex; Wireless; synchronization; detection; preambles; channel estimation; Electronics; superimposed pilot sequences; sub-channel bandwidth; precoding;

    Abstract : This thesis deals with certain aspects in the design of wireless communications systems. It is focused on problems related to the mobile or wireless channel: synchronization, channel estimation and design of wireless orthogonal frequency division multiplex (OFDM) systems. READ MORE

  5. 3. Iterative receivers with channel estimation for MIMO and multi-user OFDM systems

    Author : Peter Hammarberg; Institutionen för elektro- och informationsteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Iterative receiver; channel estimation; multi-user detection; OFDM; MIMO; IDMA; complexity; EXIT chart; channel measurements.;

    Abstract : The traffic in wireless networks has been showing an exponential growth over the last decade. In order to meet the demand, and support a continuation of this growth, the scarce radio resources need to be efficiently used. READ MORE