Title :
Performance of multi-user MIMO OFDM channel estimation with LS and MMSE for 802.11n systems
Author :
Bae, Jung Nam ; Kim, Jin Young
Author_Institution :
Dept. of Wireless Commun. Eng., Kwangwoon Univ., Seoul, South Korea
Abstract :
High transmission data rate, spectral efficiency, and reliability are necessary for future wireless communications systems. In this paper, we study the performance of multi-user multiple-input multiple-output channel estimation methods using training sequences. We consider the popular linear least square (LS) and minimum mean-square-error (MMSE) approaches. The results of computer simulation show the improvement of system capacity in Rayleigh fading channel.
Keywords :
MIMO communication; OFDM modulation; channel estimation; least mean squares methods; multiuser channels; wireless LAN; IEEE 802.11n system; Rayleigh fading channel; high transmission data rate; linear least square method; minimum mean-square-error method; multiuser MIMO OFDM channel estimation; spectral efficiency; wireless communications system; Base stations; Channel estimation; Computer simulation; Data engineering; Least squares methods; MIMO; OFDM; Receiving antennas; Reliability engineering; Wireless communication;
Conference_Titel :
Communications and Information Technology, 2009. ISCIT 2009. 9th International Symposium on
Conference_Location :
Icheon
Print_ISBN :
978-1-4244-4521-9
Electronic_ISBN :
978-1-4244-4522-6
DOI :
10.1109/ISCIT.2009.5341297
