Liu, "Performance Analysis of a k-Round Contention Resolution
Scheme for WLANs," Electron.
Another possible contention resolution strategy can be deflection routing, when the optical burst switching matrix is sent to the next output port of a predetermined core router.
But questions arise about the sequence of contention resolution strategies which must be applied for bursts of various priorities coming to core node.
It is assumed that all strategies for burst contention resolution are implemented in the OBS core router.
priority differentiation phase and contention resolution phase of the same priority helpers.
Priority differentiation phase ends once a helper sends its busy tone, and the contention resolution phase immediately starts since next minislot.
Therefore, the helper [R.sub.1] gets the opportunity to enter the contention resolution phase to contend the cooperation right.
Hence, if x STAs select any of the slots from the overlapped portion, it is more likely that they collide with any of the y STAs; the y STAs already have picked up the slots in that portion before the x STAs have initiated their (i+1)-th contention resolution