In mobile ad-hoc radio networks, terminals are mobile and heterogeneous, the architecture of the network is continuously changing, communication links are packet oriented and radio resources are scarce. Therefore, mechanisms on how to access the radio channel are extremely important in order to improve network efficiency and, when needed, to guarantee QoS. However, due to these network harsh co...

In the case of next generation wireless networks, different users with various multi-homed personal wireless devices will aim to exploit the full potential of the choice of services and applications available over different radio access networks. In their selection of a certain radio access network consumers will consider money and delay preferences for the current application and will rely on ...

This article identifies energy-saving potential of the fifth generation (5G) Radio Access Network, and describes main principles technologies. It explores how to use network energy saving technologies, such as carrier shutdown, channel symbol shutdown in 5G network, that have been inherited from 4G. Some enhanced technologies for like equipment deep sleep aggregation also introduced this articl...

The Next Generation Wireless Systems (NGWSs) consists of heterogeneous wireless access networks such as UMTS, Wi-Fi, WiMAX and LTE where Mobile Users (MUs) can access these technologies and services using a single device. This device is equipped with multiple radio interfaces include devices capable of supporting multiple Radio Access Technologies (RATs) by incorporating several interface cards...

INTRODUCTION In this sense, the MIND network is comparable to the combination of a radio access network and mobile core network packet domain. For the end-user, the MIND network can therefore provide UMTS services in the same way as is currently being considered for WLANs (e.g. Findlay et al (3)), either basic Internet access or services from the Internet Multimedia Subsystem (IMS). With the fi...

In this paper, the performance of a cloud radio access network (CRAN) is analysed, which consists of multiple randomly distributed remote radio heads (RRHs) and a macro base station (MBS). Different from previous works on CRAN where Poisson Point Process (PPP) is used to model spatial distribution of RRHs, a more realistic Matérn Hard-core point process (MHCPP) model is adopted in this work. To...