POLLING

1. Network control in which the control station invites tributary stations to transmit in the sequence specified by the control station. 2. In point-to-point or multipoint communication, the process whereby stations are invited one at a time to transmit. 3. Sequential interrogation of devices for various purposes, such as avoiding contention , determining operational status, or determining readiness to send or receive data . 4. In automated HF radio systems, a technique for measuring and reporting channel quality. ( 188 )