Combined partial reuse and soft handover in OFDMA downlink transmission

Che Sheng Chiu*, Chia-Chi Huang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

23 Scopus citations

Abstract

The inter-cell interference problem is a key issue in a multi-cell OFDMA system. A number of inter-cell interference mitigation schemes have been suggested to address this problem and among them, partial reuse is considered a most promising one for emerging OFDMA systems. In this paper, we propose an inter-cell interference mitigation scheme for an OFDMA downlink system. The proposed scheme makes use of a combination of partial reuse and soft handover. The basic idea of the proposed scheme is to select the better signal quality among a partial reuse scheme and a soft handover scheme for the cell edge users. Compared to the conventional partial reuse scheme, simulation results show that the cell edge throughput can be significantly improved by using the proposed scheme. Furthermore, considering the data-rate fairness among the users, the results prove that our approach can give better average cell throughput as compared with the conventional partial reuse scheme, especially for a very fair system.

Original languageEnglish
Title of host publication2008 IEEE 67th Vehicular Technology Conference-Spring, VTC
Pages1707-1711
Number of pages5
DOIs
StatePublished - 28 Jul 2008
Event2008 IEEE 67th Vehicular Technology Conference-Spring, VTC - Marina Bay, Singapore
Duration: 11 May 200814 May 2008

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Conference

Conference2008 IEEE 67th Vehicular Technology Conference-Spring, VTC
CountrySingapore
CityMarina Bay
Period11/05/0814/05/08

Keywords

  • Interference coordination
  • OFDMA
  • Partial reuse
  • Soft handover

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