Scheduled System Maintenance on May 29th, 2015:
IEEE Xplore will be upgraded between 11:00 AM and 10:00 PM EDT. During this time there may be intermittent impact on performance. We apologize for any inconvenience.
By Topic

Iterative interference increase estimation (I3E): a CAC scheme for UMTS uplink

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)
Capone, A. ; Politecnico di Milano, Italy ; Redana, S.

A flexible radio resource utilization in W-CDMA systems, like UMTS, can be achieved using call admission control (CAC) schemes since the number of calls admitted can be adjusted according to interference conditions. Efficient CAC schemes proposed for the uplink direction take the acceptance decision estimating the effect of new call on the signal-to-interference ratio (SIR) of the already active calls. In order to reach this goal, predictive schemes measure the total received power at the base stations and estimate the interference increase due to the new call. In this paper we propose a new predictive scheme, iterative interference-increase estimation (I3E), and compare its performance with that of previously proposed schemes based on the estimation of the noise raise. We show that the traffic acceptable with the noise raise scheme is far from the upper capacity bound, while with our new scheme it can be increased remarkably and at the same time the call dropping probability can be kept very low.

Published in:

Wireless Communications and Networking, 2003. WCNC 2003. 2003 IEEE  (Volume:3 )

Date of Conference:

20-20 March 2003