Reservation-based polling protocol for a wireless data communications network

摘要: A wireless data communications network having a number of users communicating from individual remote stations to central station over single optical-infrared channel utilizing two-stage noncontention-based multiple-access protocol. During the first stage reservation-based polling protocol, provides synchronization signal define start "reservation request period," and allocates fixed time slots during which any message transmit may access reserve portion for their messages. second or "polled transfer polls only those that have requested channel. In response poll, polled in previously-reserved slots. If desired, also return an acknowledgement upon successful reception each message.