Use of Coordinated Multipoint Transmission for Relaxation of Relay Link Bottlenecks

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

3 Citations (Scopus)


The emerging Long Term Evolution-Advanced (LTE-A) standard promises improvements in throughput and reduction in costs-per-bit, through use of techniques, such as, relaying and coordinated multipoint (CoMP) transmission and reception. The inherent self-backhauling of relays nodes makes them an attractive solution in areas where backhaul is either unavailable or costly. However, the performance of the backhaul relay link limits overall performance of relay systems, particularly for relays deployed in the cell edge. In this paper, we propose CoMP-enhancements in order to relax the relay link bottleneck. We study this proposed approach through system simulations of a selected realistic deployment scenario. The results demonstrate that use of a quantized co-phasing (QCP) CoMP technique provides significant signal- to-interference-plus- noise-ratio (SINR) gains and end-to-end throughput improvements for user equipment connected to the relays, even with simple scheduling techniques.

Original languageEnglish
Title of host publicationIEEE 79th Vehicular Technology Conference (VTC2014-Spring) 1821 May 2014, Seoul, Korea
ISBN (Print)978-1-4799-4482-8
Publication statusPublished - 2014
MoE publication typeA4 Article in a conference publication
EventIEEE Vehicular Technology Conference - Seoul, Korea, Republic of
Duration: 18 May 201421 May 2014
Conference number: 79

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252


ConferenceIEEE Vehicular Technology Conference
Abbreviated titleVTC
CountryKorea, Republic of


  • Backhaul
  • CoMP
  • LTE-Advanced
  • Relays

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