Introduction
Inthisaccessmethod,allusersinthenetworksharethetransmissionmedium,andtheinformationistransmittedtoallportsthroughbroadcast.Theworkstationconfirmsthereceivedinformation,ifitissenttoitself,itwillreceiveit,otherwiseitwillignoreit.Fromtheperspectiveofthesendingend,whenaworkstationhasdatatosend,itfirstmonitorsthechannelanddetectswhetherotherworkstationsonthenetworkaresendingdata.Ifitdetectsthatthechannelisbusy,theworkstationwillcontinueWAIT.Ifitfindsthatthechannelisfree,itwillstartsending.Afterthedataandinformationaresent,thesenderwillcontinuetoconfirmthesentinformationtoknowwhetherthereceiverhasreceivedthedatacorrectly.Ifitisreceived,thesendingends,otherwiseitissentagain.
Thecoreidea
Listenfirstandtalklater---Sendifthechannelisidle,andwaitifthechannelisbusy.
Thecollisionstops.
Backoffretransmission---Binaryexponentialbackoffretransmission.
Multiplecollisions,giveupsending---upto16times.