Throughput analysis of a collision free protocol for local area network

A collision-free variation (CSMA/CF) of the CSMA/CD (carrier-sense multiple access with collision detection) protocol was proposed by C.W. Wong (1985). This variation uses two separate channels for network acquisition; data transmission can be performed in parallel with the current transmission, the idle period is greatly reduced, and consequently the system throughput is increased. The authors describe an analytical method to calculate the throughput of this collision free protocol. The results are then compared with the throughput of the original CSMA/CD access method. It is concluded that the throughput of the collision-free protocol is greatly increased, mostly due to the application of prescheduling and parallelism.<
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