Title :
Joint angle and delay multipath MIMO channel estimation with iterative ASTL-MIMO Beamformer
Author :
Ghnimi, Sami ; Gharsallah, Ali
Author_Institution :
Fac. des Sci. de Tunis, Univ. Tunis El-Manar, Tunis
Abstract :
An iterative joint DOA/TOA multipath MIMO channel estimator is proposed in this paper. Unlike several estimation methods which require full knowledge of MIMO propagation channel, others which require that the number of antenna in the mobile terminal be higher than the number of sources to estimate or other requiring high computational complexity, our estimation approach was proposed to solve a great number of multipaths associated with several users in unknown rich scattering multiuser environment adopting smaller mobile terminals with low number of antenna elements. Simulation results show the high resolution of the proposed estimation method in computing the joint DOA and TOA parameters of such desired user working in multiuser multipath MIMO DS-CDMA system.
Keywords :
MIMO communication; antenna arrays; channel estimation; code division multiple access; direction-of-arrival estimation; multipath channels; spread spectrum communication; time-of-arrival estimation; MIMO propagation channel; antenna elements; computational complexity; iterative ASTL-MIMO beamformer; iterative joint DOA-TOA multipath MIMO channel estimator; joint angle-delay multipath MIMO channel estimation; mobile terminal; multiuser multipath MIMO DS-CDMA system; scattering multiuser environment; Antennas and propagation; Channel estimation; Computational complexity; Computational modeling; Delay estimation; Direction of arrival estimation; MIMO; Mobile antennas; Mobile computing; Scattering; DS-CDMA; JADE; MIMO; adaptive ST-Beamforming; array processing;
Conference_Titel :
Systems, Signals and Devices, 2009. SSD '09. 6th International Multi-Conference on
Conference_Location :
Djerba
Print_ISBN :
978-1-4244-4345-1
Electronic_ISBN :
978-1-4244-4346-8
DOI :
10.1109/SSD.2009.4956686
