Kei Sakabe

Technology for adaptive error recovery in wireless communication environments

Environmentally adaptive error recovery (EAER) technology for wireless communication was developed to reduce the number of communication errors and the time needed for recovery in industrial wireless networks. EAER adapts the communication frequency to the radio environment by changing the radio frequency to a better one when communication errors occur by pre-measuring the radio environment at each slave. The pre-measurement is done by having slaves measure the radio environment using test signals sent by the master. EAER was able to continue the communication within three super frames when a noise signal was applied to a communication channel.