Title :
Cost analysis of optical networks with dynamic setup and release of λ-channels
Author :
Lee, Hsin-Yi ; Chang, Cheng-Shang
Author_Institution :
Dept. of Electr. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan
Abstract :
We consider a threshold type control mechanism for dynamic setup/release of λ-channels in optical networks. There are two types of costs for the control mechanism: the setup/release cost and the operation cost. For such a control mechanism, there is a corresponding Markov model with high complexity. By state aggregation, we are able to identify a semi-Markov process that is simpler to analyze. Based on the semi-Markov process, we derive the average cost formula for the threshold type control mechanism and carry out several numerical examples to find the optimal thresholds that minimize the average cost.
Keywords :
Markov processes; optical fibre networks; probability; telecommunication channels; telecommunication control; λ-channels; Markov model; average cost formula; cost analysis; dynamic release; dynamic setup; operation cost; optical networks; optimal thresholds; semi-Markov process; state aggregation; threshold type control mechanism; Cost function; Network topology; Optical control; Optical devices; Optical fiber communication; Optical fiber networks; Optical materials; Optical switches; Optimal control; Protection;
Conference_Titel :
Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE
Print_ISBN :
0-7803-7632-3
DOI :
10.1109/GLOCOM.2002.1189113
