Position-based diversity transmission scheme employing optical wireless communication

Wasinee Noonpakdee, Jiang Liu, Shigeru Shimamoto

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We propose a position-based diversity transmission scheme for indoor optical wireless communication. In our scheme, the I (in-phase) and Q (Quadrature) signal of QPSK (quaternary phase-shift keying) modulation are transmitted separately to obtain a secure position-based transmission. We analyze probability of error with different mode numbers of the radiation lobe of Lambertian source, and position of the transmitters to attain single or multiple secure area(s). To obtain different secured areas, TDMA (time-division multiple access) with adaptive transmitted power for each time slot is applied. According to analytical results, the signal can be demodulated correctly only in the specific area and high-level security for optical wireless communication systems can then be achieved. In our scheme, the probability that the intruders can get the correct signal is decreased 90%, compared to conventional QPSK.

Original languageEnglish
Article number6018857
Pages (from-to)1071-1078
Number of pages8
JournalIEEE Transactions on Consumer Electronics
Volume57
Issue number3
DOIs
Publication statusPublished - 2011 Aug

Fingerprint

Phase shift keying
Time division multiple access
Communication
Transmitters
Communication systems
Modulation
Radiation

Keywords

  • Diversity Transmission
  • IM/DD
  • Indoor Optical Wireless Communication
  • Infrared Communication
  • ModulationScheme

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Media Technology

Cite this

Position-based diversity transmission scheme employing optical wireless communication. / Noonpakdee, Wasinee; Liu, Jiang; Shimamoto, Shigeru.

In: IEEE Transactions on Consumer Electronics, Vol. 57, No. 3, 6018857, 08.2011, p. 1071-1078.

Research output: Contribution to journalArticle

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