By Topic

Enhanced MB-OFDM UWB system with multiple transmit and receive antennas

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Zhiwei Lin ; Inst. for Infocomm Res., Singapore, Singapore ; Xiaoming Peng ; Chin, F. ; Png, K.B.

In this paper, a multi-band space-frequency transmit selection (multi-band SFTS) scheme is proposed for MB-OFDM UWB systems to explore both transmit and receive diversity effectively through multiple transmit and receive antennas without violating the FCC power spectral density (PSD) constraint for UWB. This proposed technique is able to achieve diversity gain in both spatial and frequency domain through selective subcarriers allocation for each transmit antenna at each sub-band based on the channel state information (CSI) obtained from the feedback channels. Meanwhile it applies maximum ratio combining (MRC) to obtain array and diversity gain with multiple receive antennas. Moreover, pre-calibration technique is proposed for SFTS scheme to overcome the mismatch among multiple transmit/receive front-end RF chains. Our simulation result shows that this proposed multi-band SFTS scheme is able to extend the transmission range for UWB-MIMO system and enhance its link robustness over shadowing fading channel.

Published in:

Ultra-Wideband, 2009. ICUWB 2009. IEEE International Conference on

Date of Conference:

9-11 Sept. 2009