Protocols for multichannel optical fibre LAN using passive star topology

Multiple access protocols for a multichannel optical fibre LAN using a passive star topology are discussed. Of the available channels one is used to transmit control packets and the remaining channels are used to transmit data packets. The protocols use the slotted Aloha for the transmission of control packets which identify their intended receiver address. They work independently of the propagation time of the network and achieve higher throughput than comparable protocols proposed in the literature.