TY - GEN
T1 - Generic techno-economic evaluation methodology
T2 - Conference of Telecommunication, Media and Internet Techno-Economics, CTTE 2015
AU - Leiva, A.
AU - Beghelli, A.
AU - MacHuca, C. Mas
AU - Olivares, R.
AU - Saavedra, M.
AU - Ahumada, R.
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/12/3
Y1 - 2015/12/3
N2 - Current fixed grid DWDM networks are expected to be insufficient to accommodate expected demands in few years. Hence, operators need to compare different alternatives to cope with future demands. This paper presents a step-by-step techno-economic methodology to compare and identify the most convenient upgrade alternative(s). One of the possible migration scenarios is towards flexible grid optical networks. The comparative evaluation is made in terms of investment and operational expenditures considering the cost per spectral unit. The proposed methodology is applied to an operator having as initial scenario a statically operated network using a fixed grid with connections at 10 Gbps. Three different upgrade alternatives are evaluated: (i) static operation using the fixed grid is maintained but the bit rate of connections is increased to 100 Gbps; (ii) the network is operated dynamically (lightpaths established/released on demand) in a fixed grid with 100 Gbps connections and finally, (iii) a dynamic network operating with flexible grid. Results for this particular case, show that dynamic operation with flexible grid is not the most convenient migration alternative, given the high cost of the required equipment. This methodology is expected to be useful for network operators evaluating different upgrade alternatives for their infrastructure, and manufacturers aiming to evaluate the potential of their equipment.
AB - Current fixed grid DWDM networks are expected to be insufficient to accommodate expected demands in few years. Hence, operators need to compare different alternatives to cope with future demands. This paper presents a step-by-step techno-economic methodology to compare and identify the most convenient upgrade alternative(s). One of the possible migration scenarios is towards flexible grid optical networks. The comparative evaluation is made in terms of investment and operational expenditures considering the cost per spectral unit. The proposed methodology is applied to an operator having as initial scenario a statically operated network using a fixed grid with connections at 10 Gbps. Three different upgrade alternatives are evaluated: (i) static operation using the fixed grid is maintained but the bit rate of connections is increased to 100 Gbps; (ii) the network is operated dynamically (lightpaths established/released on demand) in a fixed grid with 100 Gbps connections and finally, (iii) a dynamic network operating with flexible grid. Results for this particular case, show that dynamic operation with flexible grid is not the most convenient migration alternative, given the high cost of the required equipment. This methodology is expected to be useful for network operators evaluating different upgrade alternatives for their infrastructure, and manufacturers aiming to evaluate the potential of their equipment.
KW - Total cost ownership
KW - flexible grid
KW - optical networks
UR - http://www.scopus.com/inward/record.url?scp=84969141666&partnerID=8YFLogxK
U2 - 10.1109/CTTE.2015.7347232
DO - 10.1109/CTTE.2015.7347232
M3 - Conference contribution
AN - SCOPUS:84969141666
T3 - CTTE 2015 - 2015 Conference of Telecommunication, Media and Internet Techno-Economics, Proceedings
BT - CTTE 2015 - 2015 Conference of Telecommunication, Media and Internet Techno-Economics, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 9 November 2015 through 10 November 2015
ER -