TY - GEN
T1 - Cross-layer approach for performance evaluation in IP/GMPLS over WDM network
AU - Shao, Xuguang
AU - Zhang, Liren
AU - Shum, Ping
PY - 2006/12/27
Y1 - 2006/12/27
N2 - Current trend of integrating IP and WDM technology is to evolve core IP networks away from the overlay model and towards more integrated solutions - IP/GMPLS over WDM, which enables more efficient usage of optical bandwidth. However, the removal of ATM and/or SONET/SDH layers implies possible coupling of optical and network layers. This work aims to raise the necessity and elaborate a cross-layer approach of counting optical impairments into the performance evaluation of IP/GMPLS over WDM network. Normal procedure to calculate the network performance always takes one assumption for granted - traffic transmission in underlying optical network is perfect. However, the removal of SONET/SDH layer implies its error detection/correction function of is no longer used, which may result in useless information received by destination node. We set up a model and present a three-step cross-layer approach for analyzing the performance of IP/GMPLS over WDM network. The performance of IP traffic with and without considering optical impairments are compared and the numerical results demonstrate the network metrics, in terms of effective normalized throughput, are indeed affected by the characteristics of the underlying optical layer.
AB - Current trend of integrating IP and WDM technology is to evolve core IP networks away from the overlay model and towards more integrated solutions - IP/GMPLS over WDM, which enables more efficient usage of optical bandwidth. However, the removal of ATM and/or SONET/SDH layers implies possible coupling of optical and network layers. This work aims to raise the necessity and elaborate a cross-layer approach of counting optical impairments into the performance evaluation of IP/GMPLS over WDM network. Normal procedure to calculate the network performance always takes one assumption for granted - traffic transmission in underlying optical network is perfect. However, the removal of SONET/SDH layer implies its error detection/correction function of is no longer used, which may result in useless information received by destination node. We set up a model and present a three-step cross-layer approach for analyzing the performance of IP/GMPLS over WDM network. The performance of IP traffic with and without considering optical impairments are compared and the numerical results demonstrate the network metrics, in terms of effective normalized throughput, are indeed affected by the characteristics of the underlying optical layer.
KW - Amplified spontaneous emission (ASE)
KW - Bit error rate (BER)
KW - Cross-layer
KW - Crosstalk
KW - Four wave mixing (FWM)
KW - Normalized throughput
KW - Wavelength division multiplexing (WDM)
UR - http://www.scopus.com/inward/record.url?scp=33845603450&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33845603450&partnerID=8YFLogxK
U2 - 10.1117/12.688530
DO - 10.1117/12.688530
M3 - Conference contribution
AN - SCOPUS:33845603450
SN - 081946449X
SN - 9780819464491
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Network Architectures, Management, and Applications IV
T2 - Network Architectures, Management, and Applications IV
Y2 - 5 September 2006 through 7 September 2006
ER -