A C-RAN Architecture for LTE Control Signalling

Imad Al-Samman, Angela Doufexi, Mark Beach

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

5 Citations (Scopus)
433 Downloads (Pure)


The current LTE network architecture experiences high level of signalling traffic between control plane entities. As a result many innovative architectures have been proposed including SDN to simplify the network. Cloud RAN on the other hand proposes a pioneering paradigm in terms of sustaining the profitability
margin with unprecedented surge of mobile traffic and providing better performance to the end users. Schemes have been proposed to compute and analyse the signalling load in the new SDN LTE architecture; however in our best understanding, none of them consider future CRAN architectures. Thus in this paper we propose a new SDN CRAN architecture and present an analysis of the signalling load, evaluate the performance and compare it against existing architectures in the literature. Evaluation results show significant improvement of the proposed schemes in terms of reduction in the signalling load when addressing several network metrics.
Original languageEnglish
Title of host publication2016 IEEE 83rd Vehicular Technology Conference (VTC Spring)
Subtitle of host publicationProceedings of a meeting held 15-18 May 2016, Nanjing, China
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages5
ISBN (Electronic)9781509016983
ISBN (Print)9781509016990
Publication statusPublished - Oct 2016
EventVTC2016-Spring: 2016 IEEE 83rd Venicular Technology conference - Nanjing, China
Duration: 15 May 201618 May 2016




  • SDN
  • LTE
  • Control signalling


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