Broad-band networks for LAN and radio applications

Two versions of broadband networks are proposed. These versions, multichannel and sequential multichannel, both use a CSMA/CA protocol for medium-access control, which makes them suitable for LANs as well as for radio applications. The system description highlights the main differences between the two versions. Throughput calculations for the multichannel system using the two cases of nonpersistent and slotted nonpersistent CSMA/CA protocols show that in each case a higher throughput can be achieved with better reliability compared to single-channel operation. A sequential multichannel system is also proposed and its mode of operation and limitations are discussed. A comparison of the desirable features of the two proposed versions with other possible systems is given