On the minimization of power consumption in base stations using on/off power amplifiers

Abstract

Abstract-Using energy generated with fossil fuel causes global warming due to the greenhouse effect, which threatens our environment. One of the challenges for New Generation Networks (NGN) is then the reduction of energy consumption, in particular at the BSs (Base Stations) which use about 85% of the total network energy. We contribute to the research with a mathematical model that calculates the total power consumption of a BS and enlightens the way to minimize it. First, we analyze the power consumed at every different component of the BS. Second, based on the cost incurred in turning off the BS's power amplifiers, we show how to decide whether it is convenient to keep the BS idle during those intervals in which no traffic has to be sent, or to turn off the amplifiers. Our model is evaluated by means of numerical examples, and shows that interesting power gain can be obtained under a large spectrum of load conditions.

Joint routing, scheduling and power control providing hard deadline in wireless multihop networks

“…The adoption of mobile technology by citizens of a country positively affects both the income of its citizens as well as the gross domestic product (GDP) of the country. At the same time growing carbon footprint of Telecommunication industry has been a cause of concern and green communications has been the goal of next generation cellular systems ( [6], [35]). Thus, this paper addresses the question of providing Quality of Service (QoS) to real time applications while minimizing the transmit power.…”

“…Consider the example of 15 nodes of Section V. There are two source-destination pairs (1,8) and (2,6). We have no direct links between source-destination pair.…”

“…Channel gains on links (1, 4), (4,5), (5, 7), (7,8), (2,4), (5,6) take value from sets {0.8, 1.6, 2.4, 3.2, 4}, {0.6, 1.2, 1.8, 2.4, 3}, {0.7, 1.4, 2.1, 2.8, 3.5}, {0.9, 1.8, 2.7, 3.6, 4.5}, {1, 2, 3, 4, 5}, {0.8, 1.6, 2.4, 3.2, 4}.…”

Energy Efficient Operation of Cellular Network Using On/Off Base Stations

“…For example, the authors in [2,3] proposed a mathematical model that calculates the total power consumption of a BS and turns off the BS's power amplifiers according to traffic load. The authors in [4] focused on relays and MIMO systems for energy efficiency.…”

Dynamic Sleep Mode for Minimizing a Femtocell Power Consumption

“…In [6], the reduction of power consumption induced by MBSFN sub-frames is studied. In [7], the power amplifier is switched on and off to save energy while maintaining the cell coverage and quality of service. In those three papers, power control is not used and user are always served using the whole available power.…”