Wireless optical convergence enables spectrum-energy efficient wireless networks

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

The most effective solution to simultaneously improve both spectrum efficiency (SE) and energy efficiency (EE) is a small-cell structured wireless network such as distributed antenna network (DAN). Instead of using centralized antennas at macro-cell base station (BS), antennas are spatially distributed and are connected via coherent optical links to signal processing center (SPC) (which is equivalent to macro-cell BS). Although DAN is actually small-cell structured, SPC and its distributed antennas form a virtual macro-cell. The channel between SPC and a user terminal can be treated as an equivalent wireless channel. Therefore, handover problem in a small-cell network can be replaced by antenna selection problem within a virtual macro-cell transceiver of SPC. The deployment density of SPCs can be made similar to the present macro-cell network. In this paper, we will discuss SE-EE tradeoff of a cellular network using frequency reuse and show the potential improvement of SE-EE tradeoff introduced by the small-cell structured network. Then, we will describe DAN concept forming virtual macro-cell and heterogeneous DAN overlaid by macro-cells.

Original languageEnglish
Title of host publication2014 International Topical Meeting on Microwave Photonics / the 9th Asia-Pacific Microwave Photonics Conference, MWP/APMP 2014 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3-8
Number of pages6
ISBN (Electronic)9784885522901
DOIs
Publication statusPublished - 2014 Dec 19
Event2014 International Topical Meeting on Microwave Photonics, MWP 2014 and the 9th Asia-Pacific Microwave Photonics Conference, APMP 2014 - Sapporo, Japan
Duration: 2014 Oct 202014 Oct 23

Publication series

Name2014 International Topical Meeting on Microwave Photonics / the 9th Asia-Pacific Microwave Photonics Conference, MWP/APMP 2014 - Proceedings

Other

Other2014 International Topical Meeting on Microwave Photonics, MWP 2014 and the 9th Asia-Pacific Microwave Photonics Conference, APMP 2014
CountryJapan
CitySapporo
Period14/10/2014/10/23

Keywords

  • 5G wireless network
  • distributed antennas
  • spectrum-energy efficiency tradeoff
  • wireless optical convergence

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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