Title :
On Switching Mechanisms for Beamforming and Multiuser MIMO for a WiMAX TDD System in Reverse Link
Author :
Chen, Yejian ; Halbauer, Hardy
Author_Institution :
Alcatel-Lucent Bell Labs. Germany, Stuttgart
Abstract :
Worldwide Interoperability Microwave Access (WiMAX) is an important member of the IEEE 802.16 family. It offers solutions for Beyond-3G and future 4G systems. The deployment of Adaptive Antenna Systems (AAS) enables beamforming and Multiple-Input Multiple-Output (MIMO) techniques. In this Paper, mechanisms are investigated for switching between single user beamforming and multiuser MIMO within the WiMAX Time Division Duplex (TDD) mode, with respect to eigenvalue analysis. Throughout this paper, an IEEE 802.16e link level simulator is exploited for the performance evaluation.
Keywords :
MIMO communication; WiMax; array signal processing; telecommunication standards; IEEE 802.16e link level simulator; WiMAX TDD system; adaptive antenna systems; beamforming; multiple-input multiple-output; multiuser MIMO; switching mechanisms; time division duplex; worldwide interoperability microwave access; Adaptive arrays; Adaptive systems; Array signal processing; Eigenvalues and eigenfunctions; Frequency diversity; Frequency domain analysis; MIMO; OFDM; Tiles; WiMAX;
Conference_Titel :
Vehicular Technology Conference, 2009. VTC Spring 2009. IEEE 69th
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-2517-4
Electronic_ISBN :
1550-2252
DOI :
10.1109/VETECS.2009.5073723
