Infrared wireless local area networks
Keywords:
Infrared, Wireless local area networks, Diversity, Interference, Capture, Ethernet, Collision detection, Diffuse cells, Quasi-diffuse cells, Ambient noise, Carrier sense, Propagation losses, IEEE 802.11Abstract
This thesis studies infrared wireless local area networks, considering simultuneously the physical link and medium access aspects. A general description of free-space infrared physical links is carried out, with the main purpose of characterising and comparing quasi-diffuse and diffuse cells (in quasi-diffuse cells the optical connection between stations is through a single reflector while in the diffuse cells the optical connection is through the different reflecting surfaces of the propagation environment). (...)