Hs. Kim et Bc. Shin, PERFORMANCE EVALUATION OF MULTIPRIORITY RESERVATION PROTOCOLS FOR SINGLE-HOP WDM NETWORKS, IEICE transactions on communications, E80B(3), 1997, pp. 456-465
We propose two multipriority reservation protocols for wavelength divi
sion multiplexing (WDM) networks. The network architecture is a single
-hop with control channel-based passive star topology. Each station is
equipped with two pairs of laser and filter. One pair of laser and fi
lter is always tuned to wavelength lambda(0) for control and the other
pair of laser and filter can be tuned to any of data wavelengths, lam
bda(1), lambda(2), ..., lambda(N). According to the access methods of
the control channel, one protocol is called slotted ALOHA-based protoc
ol and the other protocol is called TDM-based protocol. The two protoc
ols have the following properties. First, each of them has its own pri
ority control scheme which easily accommodates multipriority traffics.
Second, they can be employed in the network with limited channels, i.
e. the number of stations in the system is not restricted by the numbe
r of data channels. Third, they are conflict-free protocols. By using
a reservation scheme and a distributed arbitration algorithm, channel
collision and destination conflict can be avoided. For the performance
point of view, the TDM-based protocol gives an optimal solution for t
he priority control. However it is less scalable than the slotted ALOH
A-based protocol. The slotted ALOHA-based protocol also performs good
priority control even though it is not an optimal solution. We analyze
their performances using a discrete time Markov model and verify the
results by simulation.