Title :
Uplink channel estimation for space-time block coded multiple-input multiple-output MC-CDMA systems
Author :
Deng, Ke ; Yin, Qinye ; Tian, Hongbo
Author_Institution :
Inst. for Inf. Eng., Xi´´an Jiaotong Univ., China
Abstract :
We propose a space-time block coded (STBC) multicarrier code division multiple access (MC-CDMA) scheme, where multiple antennas are distributed arbitrarily at the base station. Unlike other blind STBC-MC-CDMA schemes, ours does not decrease the maximum number of available users after linearly precoding at the transmitter. By exploiting the eigenvalue decomposition (EVD) and the redundant structure of the STBC, we estimate the uplink vector channel impulse response (VCIR) blindly. Computer simulation results demonstrate the validity and effectiveness of the proposed VCIR estimation algorithm.
Keywords :
MIMO systems; block codes; channel estimation; code division multiple access; eigenvalues and eigenfunctions; space-time codes; transient response; STBC redundant structure; base station arbitrarily distributed multiple antennas; blind STBC-MC-CDMA schemes; blind VCIR estimation; eigenvalue decomposition; multicarrier code division multiple access; multiple-input multiple-output systems; space-time block codes; transmitter linear precoding; uplink channel estimation; uplink vector channel impulse response; Base stations; Channel estimation; Computer simulation; Convolution; Diversity reception; Finite impulse response filter; MIMO; Multicarrier code division multiple access; Signal processing algorithms; Time domain analysis;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1465941
