Publication No 40181

Author(s)

Werthmann, T.*; Grob-Lipski, H.; Proebster, M.*

Title

Multiplexing Gains Achieved in Pools of Baseband Computation Units in 4G Cellular Networks

Topics

Mobile Communications

Methods

Performance Evaluation

Keywords

WIRELESS; MULTIPLEXING; MOBILE COMMUNICATION

Abstract

The tremendous increase of mobile user traffic load within the last few years forces us to efficiently use the wireless network and processing resources. Cloud computing and virtualization techniques offer an exciting opportunity to considerably reduce operation costs and provide flexible and dynamic systems. In this paper we present a simulation study for a cloud base station, which concentrates baseband processing functions of multiple radio sites. There we focus on the multiplexing-gains induced from user load and traffic heterogeneity. Our simulation results show that the data traffic influences the variance of the compute resource utilization, which in consequence leads to significant multiplexing gains if multiple sectors are aggregated into one single cloud base station. In addition, the spatial user distribution has a high impact on the compute resource load. These findings should be taken into account for the assessmentof multiplexing gains in real networks.

Year

2013

Reference entry

Werthmann, T.; Grob-Lipski, H.; Proebster, M.
Multiplexing Gains Achieved in Pools of Baseband Computation Units in 4G Cellular Networks
IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), London, September 2013

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