Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Anders Vastberg"'
Publikováno v:
ICC
This paper evaluates different means of reducing power consumption of macro base stations (BS) and heterogeneous mobile network deployments (HetNet) considering the time dimension. These approaches are based on the same idea of reducing the load of h
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 59:1831-1841
This article presents a detailed numerical investigation of the two-frequency coherence function for HF wave propagation in the fluctuating ionosphere. Earlier published expressions for the coherence function are transformed to a form suitable for nu
Autor:
Bengt Lundborg, Anders Vastberg
Publikováno v:
Radio Science. 32:2083-2090
This paper discusses signal intensity calculations for ionospheric HF radio waves using the geometrical optics approximation. To calculate the total signal intensity for an ionospheric channel, all the multipath and multimode amplitudes must be super
Autor:
Fabricio de Souza Farias, João C. W. A. Costa, Anders Vastberg, Mats Nilson, Paolo Monti, Lena Wosinska
Publikováno v:
ICICS
Heterogeneous network (HetNet) deployment strategies have the potential to improve the energy efficiency of mobile access networks. One key aspect to consider in HetNets is the impact of the power consumption of the backhaul, i.e., the overall energy
Publikováno v:
SoftCOM
Energy efficiency in Distributed Antenna Systems (DAS) has been an overlooked subject in favor of achieving the required coverage. In this paper, we demonstrate that DAS energy efficiency can be improved (in Joule/bit) up to an order of magnitude wit
Autor:
Bengt Lundborg, Anders Vastberg
Publikováno v:
Radio Science. 31:1579-1588
The paper discusses theoretical and numerical aspects of signal intensity calculations in the geometrical optics approximation for ionospheric HF wave propagation. We present an efficient method for calculating a flux tube of rays for a very general
Autor:
Anders Vastberg, Guowang Miao
Publikováno v:
WCNC
End-to-end communication is the fundamental building block of communication networks. In this paper, we discuss globally optimal energy efficient design for end-to-end communications. An end-to-end multiple-hop system with one sender, one receiver, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9ca2f4c3bacd6f51fbc6b5fdca75304
http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-129120
http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-129120
Publikováno v:
WCNC
Mobile telecommunication operators are now focussing on emerging markets due to the current highly competitive mobile telecommunication sector in established markets. The deployment of wireless mobile infrastructure in these emerging markets or a gre
Publikováno v:
WCNC
The traffic demand in future mobile cellular networks is expected to increase exponentially which would lead to dense base station deployment and eventually higher energy consumption. The current dominant mobile systems including GSM and UMTS were no
Publikováno v:
GLOBECOM
Energy efficiency in cellular mobile radio networks has recently gained great interest in the research community. The development of more energy efficient hardware and software components aside, effect of different deployment strategies on energy e