By Topic

Efficient MIMO DS-UWB Downlink Chip-Level MMSE Equalization Using Subband Adaptive Interference Mitigation Techniques

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
$31 $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

2 Author(s)
Chia-Chang Hu ; Dept. of Commun. Eng., Nat. Chung Cheng Univ., Chiayi, Taiwan ; Yung-Cheng Liao

An adaptive subband chip-level equalizer is investigated for downlink multiple-input-multiple-output (MIMO) direct-sequence (DS) ultrawideband (UWB) systems to cope with intersymbol interference (ISI) and multiple-access interference (MAI) in multipath fading channels. The subband decomposition technique with multiple analysis and synthesis filter banks (FBs) is employed to substantially improve the downlink reception of mobile-terminal (MT) receivers. This chip equalizer utilizes subband adaptive interference suppression techniques based on the minimum mean square error (MMSE) criterion. A reduced-complexity chip-level MMSE equalization scheme is proposed by making full use of the reduced-rank (RR) multistage matrix Wiener filter (MMWF) and the matrix conjugate gradient (MCG) architectures in subbands. Simulations are conducted to provide a comparative evaluation of the proposed subband chip equalizer with other existing full-band and subband chip equalizers.

Published in:

Vehicular Technology, IEEE Transactions on  (Volume:61 ,  Issue: 8 )