Title :
Energy efficient channel estimation in MIMO systems
Author :
Yatawatta, Sarod ; Petropulu, Athina P. ; Graff, Charles J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Drexel Univ., Philadelphia, PA, USA
Abstract :
We consider the problem of MIMO channel estimation subject to a given error and delay constraints. Our objective is to minimize the energy spent during the channel estimation phase, which includes transmission of training symbols, storage of those symbols at the receiver, and also channel estimation at the receiver. We develop a model that is independent of the hardware or software used for channel estimation, and use a divide and conquer strategy to minimize the overall energy consumption.
Keywords :
MIMO systems; channel estimation; delay estimation; divide and conquer methods; minimisation; power consumption; radio receivers; MIMO systems; delay constraints; divide and conquer strategy; energy consumption; energy efficient channel estimation; energy minimization; receiver; symbol storage; training symbol transmission; Channel estimation; Data communication; Delay estimation; Energy consumption; Energy efficiency; Hardware; MIMO; Receiving antennas; Transmitters; Transmitting antennas;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2005. Proceedings. (ICASSP '05). IEEE International Conference on
Print_ISBN :
0-7803-8874-7
DOI :
10.1109/ICASSP.2005.1416009
