Title :
Area & power efficient VLSI architecture for computing pseudo inverse of channel matrix in a MIMO wireless system
Author :
Khan, Zahid ; Arslan, Tughrul ; Thompson, John S. ; Erdogan, Ahmet T.
Author_Institution :
Sch. of Eng. & Electron., Edinburgh Univ., UK
Abstract :
Weight and size are the bottlenecks of portable wireless systems which are in turn dependent on area and power consumption of electronic systems. The situation becomes even worse if wireless systems are equipped with multiple input and multiple output (MIMO) technology which involves highly complex signal processing. This paper proposes an area and power efficient VLSI architecture for computing the pseudo inverse of augmented channel matrix used in MIMO systems. Results indicate 25% area and 24% power reduction compared to previous architecture in the literature without degrading the BER performance.
Keywords :
MIMO systems; VLSI; integrated circuit design; low-power electronics; radio links; BER performance; MIMO wireless system; VLSI architecture; channel matrix; electronic systems; multiple input and multiple output technology; Bit error rate; Capacitance; Computational complexity; Computer architecture; Hardware; MIMO; Receiving antennas; Redundancy; Transmitting antennas; Very large scale integration;
Conference_Titel :
VLSI Design, 2006. Held jointly with 5th International Conference on Embedded Systems and Design., 19th International Conference on
Print_ISBN :
0-7695-2502-4
DOI :
10.1109/VLSID.2006.49