Publication No 36610

Author(s)

Necker, M.C.*

Title

A Graph-Based Scheme for Distributed Interference Coordination in Cellular OFDMA Networks

Keywords

RESOURCE MANAGEMENT; RESOURCE SHARING; WIRELESS; CELLULAR SYSTEM; OFDM; TDM; OPTIMIZATION; GENETIC ALGORITHM

Abstract

Wireless systems based on Orthogonal Frequency Division Multiple Access (OFDMA) multiplex different users in time and frequency. One of the main problems in OFDMA-systems is the inter-cell interference. A promising approach to solve this problem is interference coordination (IFCO). In this paper, we present a novel distributed IFCO scheme, where a central coordinator communicates coordination information in regular time intervals. This information is the basis for a local inner optimization in every basestation. The proposed scheme achieves an increase of more than 100% with respect to the cell edge throughput, and a gain of about 30% in the aggregate spectral efficiency compared to a reuse 3 system.

Year

2008

Reference entry

Necker, M.C.
A Graph-Based Scheme for Distributed Interference Coordination in Cellular OFDMA Networks
Proceedings of the 67th IEEE Vehicular Technology Conference (VTC2008 - Spring), Singapore, May 2008

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