User selection algorithms for Space Division Multiple Access (SDMA)

Tutor: Mark Petermann
Type of Thesis: Project (MSc)
date of end: 01/2008
Student: Rodrigo Rico Calderon
Status: finished
ANT-shelfmark: P-01/08-1

Multiple antenna systems (MIMO) attracted attention over the past years due to their potential in increasing the spectral efficiency without increasing the bandwidth. Multiple users can be served within these systems by separating them in terms of space. This principle is called Space Division Multiple Access (SDMA), which can be understood as using different beams at the transmitter for the different users. Usually, the maximum number of served users is limited to the number of transmit antennas "Nt". Hence, algorithms for selecting the users have to be applied at the transmitter if more than "Nt" users are existing in the system.

This project starts with a literature research, especially concerning multiple antenna systems and multiuser beamforming strategies. Afterwards, an existing program has to be modified according to different user selection algorithms in a MATLAB environment. A performance comparison between these algorithms in terms of sum capacity, bit and frame error rate (BER/FER) concludes this project.

Last change on 17.04.2008 by M. Petermann
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