Challenges in Gbps Wireless Optical Transmission

  • Mike Wolf
  • Jianhui Li
  • Liane Grobe
  • Dominic O’Brien
  • Hoa Le Minh
  • Olivier Bouchet
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 45)


In this paper, the link budget of Gbps wireless infrared indoor communication is analysed. We particularly focus on the receiver sensitivity and identify the most suitable wavelengths range. We show that an optical receiver operating at 1 Gbps will hardly achieve the shot noise limit, which is determined by the received amount of background light. Regarding the link budget, we present two case studies. One deals with (very) short range communication, the other one with a wireless personal area network. We reveal that a network demands for avalanche photodiodes as well as beam steering. This clearly causes major challenges regarding compact and inexpensive components.


infrared communication eye safety photodetector link budget receiver sensitivity angle diversity imaging receiver non-imaging receiver 


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Copyright information

© ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering 2010

Authors and Affiliations

  • Mike Wolf
    • 1
  • Jianhui Li
    • 1
  • Liane Grobe
    • 1
  • Dominic O’Brien
    • 2
  • Hoa Le Minh
    • 2
  • Olivier Bouchet
    • 3
  1. 1.Communications Research LaboratoryIlmenau University of TechnologyIlmenauGermany
  2. 2.Department of Engineering ScienceUniversity of OxfordUK
  3. 3.France Telecom, Orange LabsCesson-SevigneFrance

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