TY - GEN
T1 - Evaluating differentiated quality of service parameters in optical packet switching
AU - Heegaard, Poul E.
AU - Sandmann, Werner
PY - 2007
Y1 - 2007
N2 - Optical packet switching (OPS) is a promising technology for future generation networks solutions. One of the great challenges to be addressed is differentiated quality of service (QoS) and a major concern in providing QoS is packet loss. In case of differentiated services, packet losses should be significantly less likely for high priority classes than for low priority classes. However, as packet losses are very unlikely they become rare events which poses serious challenges to conventional analysis methodologies. We present an importance sampling scheme for fast simulation of packet loss rates in this setting. The change of measure adapts according to ant colony optimization, a metaheuristic inspired by the foraging behavior of ants. Thereby, our simulation does not require intimate a priori knowledge of the system and overcomes a general drawback of importance sampling. Within very moderate simulation time, accurate results are provided for an OPS model with varying parameter settings.
AB - Optical packet switching (OPS) is a promising technology for future generation networks solutions. One of the great challenges to be addressed is differentiated quality of service (QoS) and a major concern in providing QoS is packet loss. In case of differentiated services, packet losses should be significantly less likely for high priority classes than for low priority classes. However, as packet losses are very unlikely they become rare events which poses serious challenges to conventional analysis methodologies. We present an importance sampling scheme for fast simulation of packet loss rates in this setting. The change of measure adapts according to ant colony optimization, a metaheuristic inspired by the foraging behavior of ants. Thereby, our simulation does not require intimate a priori knowledge of the system and overcomes a general drawback of importance sampling. Within very moderate simulation time, accurate results are provided for an OPS model with varying parameter settings.
UR - http://www.scopus.com/inward/record.url?scp=38149098444&partnerID=8YFLogxK
U2 - 10.1007/978-3-540-74833-5_14
DO - 10.1007/978-3-540-74833-5_14
M3 - Conference contribution
AN - SCOPUS:38149098444
SN - 3540748326
SN - 9783540748328
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 162
EP - 174
BT - Next Generation Teletraffic and Wired/Wireless Advanced Networking - 7th International Conference, NEW2AN 2007, Proceedings
PB - Springer Verlag
T2 - 7th International Conference on Next Generation Teletraffic and Wired/Wireless Advanced Networking, NEW2AN 2007
Y2 - 10 September 2007 through 14 September 2007
ER -