By Topic

Self-Optimizing Strategies for Interference Coordination in OFDMA Networks

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

4 Author(s)
Combes, R. ; R&D, France Telecom, Issy-les-Moulineaux, France ; Altman, Z. ; Haddad, M. ; Altman, E.

This paper investigates self-optimizing schemes for interference management in downlink of Orthogonal Frequency-Division Multiple Access (OFDMA) networks: power control, fractional frequency reuse and dynamic fractional load. While the first two schemes are based on continuous power control, the third scheme is based on switching off frequency sub-bands thus dynamically varying the cell capacity and creating frequency reuse patterns. Distributed solutions based on the distributed gradient descent method are developed. Coordination between enhanced eNodeBs (eNBs) is achieved via information exchanged on the X2 interface. The scheduling gain for a Raleigh-fading channel is modeled and incorporated in the solution. Numerical simulations of a large scale Long Term Evolution (LTE) network show the potential benefits of the self-optimization schemes, with significant performance gains brought by the dynamic fractional reuse scheme.

Published in:

Communications Workshops (ICC), 2011 IEEE International Conference on

Date of Conference:

5-9 June 2011