TY - JOUR
AU1 - Seoane, Isaac
AU2 - Santos, Gerson
AU3 - Hernández, José
AU4 - Urueña, Manuel
AU5 - Romeral, Ricardo
AU6 - Cuevas, Ángel
AU7 - Larrabeiti, David
AB - In Tunable-Transmitter Fixed-Receiver (TT-FR)-based Wavelength Division Multiplexed (WDM) ring topologies, each node is provided with a dedicated wavelength (home channel) for reception, which must be shared by the upstream nodes willing to communicate with it. Thus, to avoid channel collisions, it is necessary to define a Medium Access Control (MAC) mechanism that arbitrates access to a given destination wavelength. This work proposes and analyses a simple MAC mechanism that avoids channel collisions by recirculating traffic on the upstream ring segment where congestion was detected. Essentially, whenever a given node has got any traffic to transmit, it must first block access to in-transit traffic, which is reflected back to the upstream node over a second optical fibre. Such blocked traffic is given a second chance to pass through the congested node after a round segment delay, thus making use of the ring topology as buffering units. This work analyses the performance operation of such a MAC protocol under two policies applied to recirculated traffic: (1) recirculation bypass and (2) recirculation store-and-forward.
TI - Analysis of delay mean and variance of collision-free WDM rings with segment recirculation of blocked traffic
JF - Photonic Network Communications
DO - 10.1007/s11107-010-0299-2
DA - 2010-10-30
UR - https://www.deepdyve.com/lp/springer-journals/analysis-of-delay-mean-and-variance-of-collision-free-wdm-rings-with-H7vYjRRpc0
SP - 278
EP - 287
VL - 21
IS - 3
DP - DeepDyve
ER -