Summary
IEICE Information and Communication Technology Forum
2016
Session Number:B1
Session:
Number:B1-01
Effective exploitation of spatial domain for 5G small-cell structured mobile networks
Fumiyuki Adachi,
pp.-
Publication Date:2016-10-01
Online ISSN:2188-5079
Summary:
After 35 years from its birth in 1979, mobile communications network has evolved into the 4th generation (4G). The mobile data traffic volume in 2020 is expected to reach about 1000 times of 2010. Therefore, the energy-efficiency has become an important concern for the next generation 5th generation (5G) mobile communications. To improve both the spectrum-efficiency and energy-efficiency, wireless networks need to be significantly restructured. One promising solution is to introduce small-cell structured networks. In this talk, after overviewing the evolution of mobile communications technology over the past 35 years, we will discuss about the small-cell structured networks for 5G. There are two approaches to implement the small-cells: distributed small base stations (SBSs) and distributed antennas (DAs). For small-cell structured networks using DAs, a virtual macro-cell concept will be introduced. Then, we will present the recent advances in distributed antenna cooperative signal transmission techniques which improve simultaneously the spectrum and energy efficiencies while providing seamless connection.