Inter-cell interference coordination for type I relay networks in LTE systems

Yiwei Yu*, Eryk Dutkiewicz, Xiaojing Huang, Markus Mueck

*Corresponding author for this work

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

13 Citations (Scopus)


The decode-and-forward relay technique has been introduced in next generation wireless networks (such as LTE) to extend coverage and improve performance, although it may generate additional inter-cell interference. Soft frequency reuse (SFR) has been proposed as the most promising frequency planning strategy to mitigate inter-cell interference in LTE systems. In this paper we propose an effective combination of relay networks and SFR, with a dedicated relay topology and the SFR-based resource allocation scheme. In the proposed relay network, each relay station (RS) can jointly serve cell-edge users from adjacent cells to increase efficiency. The proposed resource allocation scheme, on the other hand, is able to achieve throughput improvement for both cell-edge users and cell-center users by minimizing the interference impact in the system. The benefit of relay networks with SFR-based resource allocation in terms of 30% overall performance improvement over conventional non-relay networks can be realized as demonstrated by the simulation results.

Original languageEnglish
Title of host publication2011 IEEE Global Telecommunications Conference, GLOBECOM 2011
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages6
ISBN (Electronic)9781424492688
ISBN (Print)9781424492664
Publication statusPublished - 2011
Event2011 IEEE Global Telecommunications Conference - GLOBECOM 2011 - Houston, Texas, United States
Duration: 5 Dec 20119 Dec 2011


Other2011 IEEE Global Telecommunications Conference - GLOBECOM 2011
Country/TerritoryUnited States
CityHouston, Texas


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