Optimizing small cell deployment by the use of C-RANs

Aleksandra Checko, Henrik Laumand Holm, Henrik Lehrmann Christiansen

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Abstract

A Cloud Radio Access Network (C-RAN) is a novel mobile network architecture that has the potential to support extremely dense mobile network deployments enhancing the network capacity while offering cost savings on baseband resources. In this work we analyze cell traffic profiles and evaluate the conditions that impact the statistical multiplexing gain in the Baseband Unit (BBU) Pool. We conclude on the set of parameters that maximize the statistical multiplexing gain, leading to the highest potential cost savings. We then propose a packet based architecture that can adapt to changing traffic conditions. Furthermore, based on theoretical calculations and Network simulations we present considerations on deployment scenarios to optimize green field deployments in terms of Total Cost of Ownership (TCO). This involves optimizing the mix of cells with different traffic profiles and the BBU Pool positioning in order to reduce the number of required BBUs as well as the required fiber.
Original languageEnglish
Title of host publicationProceedings of European Wireless 2014
PublisherIEEE
Publication date2014
Pages317-322
ISBN (Print)978-3-8007-3621-8
Publication statusPublished - 2014
EventEuropean Wireless 2014: 20th European Wireless Conference - Barcelona, Spain
Duration: 14 May 201416 May 2014

Conference

ConferenceEuropean Wireless 2014
CountrySpain
CityBarcelona
Period14/05/201416/05/2014

Keywords

  • Cloud RAN
  • Mobile networks
  • Small cells
  • Statistical multiplexing gain
  • Total cost of ownership

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