Title :
Channel estimation using complementary sequence pairs for UWB/OFDM systems
Author_Institution :
State Key Lab. of Mobile Commun., Southeast Univ., Nanjing, China
Abstract :
It is well known that time domain channel estimation can achieve better performance than frequency domain channel estimation with a time-multiplexed preamble in common OFDM systems. When it is applied to UWB/OFDM systems, however, its high complexity becomes the main obstacle because of the large number of resolvable paths. To solve this problem, a low-complexity channel estimation scheme is presented by exploiting a special construction of complementary sequence pairs.
Keywords :
OFDM modulation; channel estimation; frequency-domain analysis; time division multiplexing; time-domain analysis; ultra wideband communication; UWB-OFDM systems; complementary sequence pairs; frequency domain channel estimation; low complexity channel estimation; time domain channel estimation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20045826
