Title :
An Efficient Tree Search Decoder with Column Reordering for Underdetermined MIMO Systems
Author :
Chang, Xiao-Wen ; Yang, Xiaohua
Author_Institution :
McGill Univ., Quebec
Abstract :
An efficient tree search decoder for underdetermined MIMO systems is presented. The decoder employs a novel column reordering strategy for the channel matrix in the reduction process, which can significantly reduce the computational cost. Simulation results show that this new algorithm is much more efficient than current approaches for a square constellation higher than 4QAM.
Keywords :
MIMO communication; decoding; fading channels; matrix algebra; tree searching; channel matrix; column reordering; reduction process; tree search decoder; underdetermined MIMO system; Computational efficiency; Computational modeling; Computer science; Decoding; Linear systems; MIMO; Partitioning algorithms; Receiving antennas; Transmitting antennas; Vectors;
Conference_Titel :
Global Telecommunications Conference, 2007. GLOBECOM '07. IEEE
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4244-1042-2
Electronic_ISBN :
978-1-4244-1043-9
DOI :
10.1109/GLOCOM.2007.832
