Scheduled System Maintenance:
On Monday, April 27th, IEEE Xplore will undergo scheduled maintenance from 1:00 PM - 3:00 PM ET (17:00 - 19:00 UTC). No interruption in service is anticipated.
By Topic

Channel adaptive multiple access and intersymbol interference cancellation techniques for TDD-mode UMTS receivers

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 $31
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)
Bian, Y.Q. ; Centre for Commun. Res., Bristol Univ., UK ; Nix, A.R.

This paper presents a comparison of simulation results for various time division duplex (TDD) UMTS receiver architectures. Uplink and downlink simulations are performed over frequency-selective time varying channels. Results indicate that in practice, satisfactory performance cannot be obtained using fixed branch receiver architectures. To overcome this limitation, a reconfigurable blind adaptive linear minimum mean square error (LMMSE) receiver is proposed to simultaneously track channel variations and mitigate the effects of multiple access interference and intersymbol interference. This new method is compared with the standard correlator, RAKE receiver and chip level equalisation techniques. System performance is studied in terms of uncoded bit error rate for low and medium levels of RMS delay spread. Simulations demonstrate that adaptive branch and parameter selection greatly reduces the interference floor in multi-user CDMA systems. More specifically, the proposed reconfigurable blind adaptive LMMSE is shown to offer competitive results at low relative complexity. This approach can be used to improve the performance and capacity of TDD mode UMTS networks

Published in:

3G Mobile Communication Technologies, 2001. Second International Conference on (Conf. Publ. No. 477)

Date of Conference: