Title :
Composite Channel Estimation in MIMO-OFDM system with enhanced spectral efficiency
Author :
Bandopadhaya, Shuvabrata ; Kumar, Sudhakar ; Roy, Jibendu Sekhar
Author_Institution :
Dept. of Electron. & Telecommun., Silicon Inst. of Technol., Bhubaneswar, India
Abstract :
Pilot Added Channel Estimation (PACE) for Orthogonal Frequency Division Multiplexing (OFDM) in multiple transmitting antennas causes inter-antenna interference. This can be mitigated by the use of null sub-carriers. However the presence of null sub-carriers degrades the spectral efficiency of OFDM system This paper proposes an efficiency enhancing channel estimation method by estimating composite Channel State Information (CSI) for the given receiving antenna.
Keywords :
MIMO communication; OFDM modulation; channel estimation; interference (signal); receiving antennas; transmitting antennas; wireless channels; MIMO-OFDM system; composite channel estimation; composite channel state information; efficiency enhancing channel estimation method; enhanced spectral efficiency; inter-antenna interference; multiple transmitting antennas; null sub-carriers; orthogonal frequency division multiplexing; pilot added channel estimation; receiving antenna; Decision support systems; Intelligent systems; Orthogonal Frequency Division Multiplexing (OFDM); Pilot Added Channel Estimation (PACE); composite channel estimation; null sub-carriers; spectral efficiency;
Conference_Titel :
Communications, Devices and Intelligent Systems (CODIS), 2012 International Conference on
Conference_Location :
Kolkata
Print_ISBN :
978-1-4673-4699-3
DOI :
10.1109/CODIS.2012.6422135
