Skip to Main Content
 

Global Search Box

 
 
 
 

Files

File List


ucin1037812447.pdf (1.59 MB)

ETD Abstract Container

Abstract Header

A STUDY OF THE RECEPTION OF CO-DIRECTIONAL USERS USING BEAMFORMING, SWITCHED BEAMS AND MULTIUSER DETECTION STATEGIES

RADHAKRISHNAN, RAJESH
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1037812447

Abstract Details

2002, MS, University of Cincinnati, Engineering : Electrical Engineering.
Spatial filtering and space-time processing algorithms have been proposed for implementation in wideband code division multiple access (WCDMA) systems, as a means of increasing both the capacity of the cellular system and the quality of service. Spatial filtering is achieved using smart antennas, which can be classified into the following two genres: adaptive antenna arrays and the switched beam concept. When faced with the scenario of co-directional users, using beamforming or switched beams alone is not the best strategy, in terms of the performance measure - the received bit error rate. The signals from the co-directional users are accepted by the main lobe of the desired user’s antenna pattern and is seen as interference when demodulating the desired user’s signal. Selective multiuser detection, applied after the above reception strategies, can be used to mitigate against these interferers and provide a significant performance enhancement. A ‘Smart Antenna Simulation Environment’, a graphical user interface, was designed using Matlab, to carry out the simulation analysis. Simulation studies done in this thesis show that switched beams with the decorrelating detector performs just as well and in some cases better than recursive least squares (RLS) beamforming with the decorrelating detector, when receiving co-directional users at the base station.
Dr. James Caffery, Jr. (Advisor)
smart antennas; beamforming; switched beams; decorrelator; multiuser detection

Recommended Citations

Citations

  • RADHAKRISHNAN, R. (2002). A STUDY OF THE RECEPTION OF CO-DIRECTIONAL USERS USING BEAMFORMING, SWITCHED BEAMS AND MULTIUSER DETECTION STATEGIES [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1037812447

    APA Style (7th edition)

  • RADHAKRISHNAN, RAJESH. A STUDY OF THE RECEPTION OF CO-DIRECTIONAL USERS USING BEAMFORMING, SWITCHED BEAMS AND MULTIUSER DETECTION STATEGIES. 2002. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1037812447.

    MLA Style (8th edition)

  • RADHAKRISHNAN, RAJESH. "A STUDY OF THE RECEPTION OF CO-DIRECTIONAL USERS USING BEAMFORMING, SWITCHED BEAMS AND MULTIUSER DETECTION STATEGIES." Master's thesis, University of Cincinnati, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1037812447

    Chicago Manual of Style (17th edition)

ucin1037812447
1,345
© 2002, all rights reserved.
This open access ETD is published by University of Cincinnati and OhioLINK.