Comparative analysis on channel allocation schemes in multiple subcarrier passive communication system

Nitish Rajoria, Yuki Igarashi, Jin Mitsugi, Yusuke Kawakita, Haruhisa Ichikawa

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Multiple subcarrier passive communication is a new research area which enables a type of frequency division multiple access with wireless and batteryless sensor RF tags just by implementing RF switches to produce dedicated subcarriers. Since the mutual interference among subcarriers is unevenly distributed over the frequency band, careless allocations of subcarrier frequencies may result in degraded network performance and inefficient use of the frequency resource. In this paper, we examine four subcarrier frequency allocation schemes using MATLAB numerical simulations. The four schemes are evaluated in terms of the communication capacity and access fairness among sensor RF tags. We found that the subcarrier allocation scheme plays an important role in multiple subcarrier communication and can improves the communication capacity by 35%.

Original languageEnglish
Pages (from-to)1777-1784
Number of pages8
JournalIEICE Transactions on Communications
VolumeE98B
Issue number9
DOIs
Publication statusPublished - 2015 Sep 1

Keywords

  • Multiple access
  • Passive communications
  • Subcarrier allocation
  • Wireless sensing

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications
  • Software

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