Abstract
Power consumption of mobile devices is a great concern in the current mobile communication systems. Recent analysis by manufacturers and network operators has shown that current wireless networks are not very energy efficient. Power consumption is directly related to the coverage area of the base station. So in this chapter, we will analyze and compare the total power consumption, power consumption per covered area and ranges of the macrocell, microcell and femtocell base stations for Mobile WiMAX, fixed WiMAX, UMTS, HSPA, LTE for 1x1 SISO systems and mobile WiMAX, HSPA and LTE will be consider for 2x2 MIMO system. The numerical example will be illustrated with help of simulation results. This chapter enables the reader for knowledge of power consumption in existing wireless access networks technology with detailed of current and future trend of research.
TopBackground
The power consumption and energy efficiency of telecommunications networks become more and more important. For wireless access networks, most studies focus on energy-efficient deployments of wireless access networks. These studies shows that the user try to reduce the number of base stations in the network by switching them off during periods of low traffic which is a very promising method for energy savings. These studies in combination with a realistic power consumption model for base stations will enable to quantify the actual power savings in the network.
Key Terms in this Chapter
Enhanced Data Rates for Global Evolution (EDGE): The enhanced data rate for global evolution (EDGE) is the new radio interface technology to boost network capacity and user data rates for GSM/GPRS networks. It has been standardized by ETSI and also in the United States as part of the IS-136 standards.
Effective Isotropic Radiated Power (EIRP): It is the output power when a signal is concentrated into a smaller area by the antenna. It radiates power equally in all directions.
Path Loss: The ratio of the transmitted power to the received power of the signal. It is the reduction in power density of an electromagnetic wave.
UMTS (Universal Mobile Telecommunication System): Developed by ETSI (European Telecommunications Standardization Institute) and operates in the 2.1 GHz band. UMTS uses W-CDMA (Wideband Code Division Multiple Access) as multiple access technique and has a maximum bit rate of only 3 Mbps. UMTS has been specified as an integrated solution for mobile voice and data.
HSPA (High Speed Packet Access): The standard mainly designed to support high speed data rate in the uplink and downlink. HSPA falls under categories viz. HSDPA, HSUPA and HSPA+.
LTE Technology: A new network architecture, which is developed by the 3rd Generation Partnership Project (3GPP) and support radio access network (RAN).LTE constitutes the latest step towards the 4th generation (4G) of radio technologies designed to increase the capacity and speed of mobile communications.