I am examining the introduction of Infrared Communication. I read the item of security in your homepage but I could not solve the question.
In your homepage there is the description that the security is high because
the leakage is small. In the case of Radio Wave Communication, ESS-ID,
cryptograph and MAC address are adopted in order to improve the security.
How about in the case of Infrared Communication?
There are two methods for the security of Infrared Communication.
The first one is the same method used in Radio Wave Communication.
In the case of Radio Wave Communication, ESS-ID and MAC address are adopted.
WEP is the same. In the case of Infrared Communication, the same methods
are adopted. In Infrared Communication the system is connected with the
terminal equipment by Ethernet interface and the security method is the
same because the control algorithm is the same except the transmission
media in the space and the difference of the media conversion (transmit
and receive parts). And Infrared Communication is much strong against the
disguise and the interception in the transmission space.
The second one is the method used in the outdoor point-to-point communication system of 100`1000Mbps.
In this case the situation is the same in the case of optical fiber, wire
transmission and radio wave transmission. The modulation of the signal
and the bit-scramble are adopted and they can improve the security of Infrared
ESS-ID : Extended Service Set Identification
MAC address : Media Access Control address
WEP : Wired Equivalent Privacy