On multi-user EXIT chart analysis aided turbo-detected MBER beamforming designs

Tan, S., Chen, S. and Hanzo, L. (2008) On multi-user EXIT chart analysis aided turbo-detected MBER beamforming designs. IEEE Transactions on Wireless Communications, 7, (1), 314-323.


[img] PDF
Available under License Creative Commons Public Domain Dedication.

Download (324Kb)


Abstract—This paper studies the mutual information transfer characteristics of a novel iterative soft interference cancellation (SIC) aided beamforming receiver communicating over both additive white Gaussian noise (AWGN) and multipath slow fading channels. Based on the extrinsic information transfer (EXIT) chart technique, we investigate the convergence behavior of an iterative minimum bit error rate (MBER) multiuser detection (MUD) scheme as a function of both the system parameters and channel conditions in comparison to the SIC aided minimum mean square error (SIC-MMSE) MUD. Our simulation results show that the EXIT chart analysis is sufficiently accurate for the MBER MUD. Quantitatively, a two-antenna system was capable of supporting up to K=6 users at Eb/N0=3dB, even when their angular separation was relatively low, potentially below 20?. Index Terms—Minimum bit error rate, beamforming, multiuser detection, soft interference cancellation, iterative processing, EXIT chart.

Item Type: Article
ISSNs: 1536-1276
Divisions : Faculty of Physical Sciences and Engineering > Electronics and Computer Science > Southampton Wireless Group
ePrint ID: 265042
Accepted Date and Publication Date:
January 2008Published
Date Deposited: 17 Jan 2008 10:01
Last Modified: 31 Mar 2016 14:10
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/265042

Actions (login required)

View Item View Item

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics