Traffic-Driven Power Saving in Operational 3G Cellular Networks

Speaker:  Abhishek Roy – San Francisco, United States
Topic(s):  Networks and Communications

Abstract

Base stations (BSes) in the 3G cellular networks are not energy proportional with respect to their carried traffic load. Our mea- surements show that 3G traffic exhibits high fluctuations both in time and over space, thus incurring energy waste. In this paper, we propose a profile-based approach to green cellular infrastructure. In this lecture we discuss profiling BS traffic and approximating network-wide energy proportionality using non-load-adaptive BSes. The key is to leverage temporal-spatial traffic diversity and node deployment heterogeneity, leading to power off under-utilized BSes under light traffic. Evaluation on four regional 3G networks shows that this simple scheme yields up to 53% energy savings in a dense large city and 23% in a sparse, mid-sized city.

About this Lecture

Number of Slides:  30
Duration:  90 minutes
Languages Available:  English
Last Updated: 

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