… the performance of wireless networks. Such innovations have already brought spectral efficiency
… demands of next-generation wireless systems and 5G networks, new and revolutionary …

… The demand for universal wireless access, along with the development of wireless … in
a variety of wireless networks. The issue of supporting QoS in wireless networks has been …

… in E-HY and E-DW and analyze their performance. Subsequently, we propose an efficient
general handoff decision algorithm GHO to select the optimal network for HHO or VHO from all …

… One of the key findings of the EARTH energy efficiency analysis is that on average the …
network in a major European city [3]. Unfortunately, it is at low loads where the energy efficiency of …

… , we analyze the energy efficiency of downlink two-tier heterogeneous networks, ie a network
… graphs for the analysis and design of wireless networks,” IEEE J. Sel. Areas Commun., vol. …

… To fulfill these requirements, wireless network virtualization is used to … wireless networks
and coordinate network resources. In this article we propose a model of wireless network …

… These results can hardly provide insights into the cross-networks energy efficiency issues. …
-networks framework of energy efficiency from wired WDM networks to 5G wireless networks …

… Wireless network architectures Two different wireless network architectures are considered
in this paper: infrastructure and ad hoc networks. Below, a description of each system …

… efficiency of the RT. These are [12] and [13]. Since most of the energy efficiency of a cellular
wireless network … regarding the energy efficiency of RTs, called the energy trap, in Section V. …

… 21 0890-8044/05/$20.00 © 2005 IEEE IEEE Network • July/August 2005 n next-generation
wireless networks, it is likely that the IEEE 802.11 wireless LAN (WLAN) [1] will play an …