To address the exponential growth of traffic on mobile cellular networks, heterogeneous networks have been proposed in which numerous small-radius microcells commonly referred to as "small cells" are placed alongside traditional macrocells. The practical rollout of these small cells is challenging. For example, the effects of land terrain and urban geography on cellular mobile signal propagations can significantly influence transmission quality and coverage. In this paper, we describe a small-cell planning framework that takes into consideration the effects of land terrain variation and urban geography in planning the location of the small cells. Our framework is shown to utilize fewer cells than the maximum limit of 30 cell sites/km2 in urban area for LTE 1800MHz network. We further formulate a Linear Program to obtain the optimal operating power of these small cells whilst constrained by the power and capacity requirements and subjected to daily capacity demand variations. Our preliminary results show that with our small cell power management scheme which is based on traffic and capacity demand, tangible power savings can be achieved throughout the day.
History
Pagination
844-848
Location
Guangzhou, China
Start date
2014-08-25
End date
2014-08-28
ISSN
1559-9450
eISSN
1931-7360
ISBN-13
9781934142288
Language
eng
Publication classification
E1.1 Full written paper - refereed
Title of proceedings
PIERS 2014 : Proceedings of the 35th Progress In Electromagnetics Research Symposium