Call admission control in cloud radio access networks

Tshiamo Sigwele, Prashant Pillai, Yim Fun Hu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Citations (Scopus)

Abstract

Over the past decade, wireless communications has experienced tremendous growth, and this growth is likely to multiply in the near future. The proliferation of mobile users and an ever increasing demand for multimedia services has resulted in greater capacity requirements. Radio frequency spectrum is scarce and cannot meet this ever increasing demand and the required Quality of Service (QoS) will no longer be achieved if efficient Radio Resource Management (RRM) solutions are not found. Conventional Radio Access Networks (RAN) have standalone Base Stations (BS) with capacity preconfigured for peak loads. These RANs have high call blocking and dropping rates since BSs resources cannot be shared. Cloud based RANs (C-RAN) have been proposed as a cost and energy efficient way of meeting high capacity demand of future wireless access networks by consolidating BSs to the cloud. Instead of relying on rejection of new call requests due to limited BS resources, C-RAN takes benefit of the cloud elasticity, which allows dynamic provisioning of cloud BS resources. This paper presents a novel C-RAN Call Admission Control (C-RAN CAC) to ensure Grade of Service (GoS) by improving blocking probability and improvement of call waiting times. Call blocking probability, call average waiting time and system utilization are used to evaluate the performance of the proposed CAC algorithm.

Original languageEnglish
Title of host publicationProceedings - 2014 International Conference on Future Internet of Things and Cloud, FiCloud 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages31-36
Number of pages6
ISBN (Electronic)9781479943586
DOIs
Publication statusPublished - Dec 12 2014
Externally publishedYes
Event2nd International Conference on Future Internet of Things and Cloud, FiCloud 2014 - Barcelona, Spain
Duration: Aug 27 2014Aug 29 2014

Publication series

NameProceedings - 2014 International Conference on Future Internet of Things and Cloud, FiCloud 2014

Conference

Conference2nd International Conference on Future Internet of Things and Cloud, FiCloud 2014
Country/TerritorySpain
CityBarcelona
Period8/27/148/29/14

All Science Journal Classification (ASJC) codes

  • Computer Science(all)

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