Abstract

Several structures of sharing wavelength converters (WCs) have been proposed for wavelength interchanging cross connects, including share-per-node (SPN), share-per-link (SPL), and share-per-wavelength (SPW). Among them, SPN has the highest sharing efficiency but at the expense of a complex switch fabric. In this paper, we investigate the Clos-type SPN and SPL structures and propose a novel structure, which is termed as C-SPW, to share fixed WCs based on the Clos network. The comparative simulations show that the sharing of fixed WCs in C-SPW can achieve similar drop probability (DP) with the sharing of tunable ones in Clos-type SPN under synchronous uniform traffic. The reason is that the fixed WCs in C-SPW can be accessible by all incoming packets, instead of a subset of them. Furthermore, an analytical model is derived to calculate the DP and converter utilization rate when C-SPW is operated in a synchronous mode under uniform traffic. The proposed analytical model fits well with the simulation results.

© 2009 IEEE

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  1. K.-C. Lee, V. O. K. Li, "A wavelength-convertible optical network," J. Lightw. Technol. 11, 962-970 (1993).
  2. T. Chai, T. Cheng, G. Shen, C. Lu, "Design and performance of optical cross-connect architectures with converter sharing," Opt. Netw. Mag. 3, 73-84 (2002).
  3. J. Comellas, J. Conesa, G. Junyent, "Design and performance analysis of a simple OXC," Photon. Netw. Commun. 5, 81-88 (2003).
  4. P. G. Hu, Y. Wang, W. S. Hu, "A new grouped limited-wavelength conversion optical cross-connect and its scalability performance," Opt. Transmission, Switching, and Subsystems II, Proc. SPIE (2005) pp. 1040-1047.
  5. C. Clos, "A study of nonblocking switching networks," Bell Syst. Tech. J. 32, 406-24 (1953).
  6. J. M. Yates, M. P. Rumsewicz, "Wavelength converters in dynamically reconfigurable WDM networks," Commun. Surveys Tuts. 2, 2-15 (1999).
  7. H. Zang, J. P. Jue, B. Mukherjee, "A review of routing and wavelength assignment approaches for wavelength-routed optical WDM networks," Opt. Netw. Mag. SPIE 1, 47-60 (2000).
  8. V. Eramo, M. Listanti, P. Pacifici, "A comparison study on the number of wavelength converters needed in synchronous and asynchronous all-optical switching architectures," J. Lightw. Technol. 21, 340-355 (2003).
  9. V. Eramo, M. Listanti, "Packet loss in a bufferless WDM switch employing shared tunable wavelength converters," J. Lightw. Technol. 18, 1818-1833 (2000).
  10. Y. Mingwu, L. Zengji, W. Aijun, "Accurate and approximate evaluations of asynchronous tunable-wavelength-converter sharing schemes in optical burst-switched networks," J. Lightw. Technol. 23, 2807-2815 (2005).
  11. S. Jiang, G. Hu, S. Y. Liew, H. J. Chao, "Scheduling algorithms for shared fiber-delay-line optical packet switches—Part ii: The three-stage Clos-network case," J. Lightw. Technol. 23, 1601-1609 (2005).
  12. F. Yan, W. Hu, W. Sun, W. Guo, Y. Jin, H. He, Y. Dong, "Placements of shared wavelength converter groups inside a cost-effective permuted Clos network," IEEE Photon. Technol. Lett. 19, 981-983 (2007).
  13. H. Chao, Z. Jing, S. Liew, "Matching algorithms for three-stage bufferless Clos network switches," IEEE Commun. Mag. 41, 46-54 (2003).
  14. Z. Zhang, Y. Yang, "Performance modeling of bufferless WDM packet switching networks with limited-range wavelength conversion," IEEE Trans. Commun. 54, 1473-1480 (2006).

2007 (1)

F. Yan, W. Hu, W. Sun, W. Guo, Y. Jin, H. He, Y. Dong, "Placements of shared wavelength converter groups inside a cost-effective permuted Clos network," IEEE Photon. Technol. Lett. 19, 981-983 (2007).

2006 (1)

Z. Zhang, Y. Yang, "Performance modeling of bufferless WDM packet switching networks with limited-range wavelength conversion," IEEE Trans. Commun. 54, 1473-1480 (2006).

2005 (2)

Y. Mingwu, L. Zengji, W. Aijun, "Accurate and approximate evaluations of asynchronous tunable-wavelength-converter sharing schemes in optical burst-switched networks," J. Lightw. Technol. 23, 2807-2815 (2005).

S. Jiang, G. Hu, S. Y. Liew, H. J. Chao, "Scheduling algorithms for shared fiber-delay-line optical packet switches—Part ii: The three-stage Clos-network case," J. Lightw. Technol. 23, 1601-1609 (2005).

2003 (3)

H. Chao, Z. Jing, S. Liew, "Matching algorithms for three-stage bufferless Clos network switches," IEEE Commun. Mag. 41, 46-54 (2003).

J. Comellas, J. Conesa, G. Junyent, "Design and performance analysis of a simple OXC," Photon. Netw. Commun. 5, 81-88 (2003).

V. Eramo, M. Listanti, P. Pacifici, "A comparison study on the number of wavelength converters needed in synchronous and asynchronous all-optical switching architectures," J. Lightw. Technol. 21, 340-355 (2003).

2002 (1)

T. Chai, T. Cheng, G. Shen, C. Lu, "Design and performance of optical cross-connect architectures with converter sharing," Opt. Netw. Mag. 3, 73-84 (2002).

2000 (2)

V. Eramo, M. Listanti, "Packet loss in a bufferless WDM switch employing shared tunable wavelength converters," J. Lightw. Technol. 18, 1818-1833 (2000).

H. Zang, J. P. Jue, B. Mukherjee, "A review of routing and wavelength assignment approaches for wavelength-routed optical WDM networks," Opt. Netw. Mag. SPIE 1, 47-60 (2000).

1999 (1)

J. M. Yates, M. P. Rumsewicz, "Wavelength converters in dynamically reconfigurable WDM networks," Commun. Surveys Tuts. 2, 2-15 (1999).

1993 (1)

K.-C. Lee, V. O. K. Li, "A wavelength-convertible optical network," J. Lightw. Technol. 11, 962-970 (1993).

1953 (1)

C. Clos, "A study of nonblocking switching networks," Bell Syst. Tech. J. 32, 406-24 (1953).

Bell Syst. Tech. J. (1)

C. Clos, "A study of nonblocking switching networks," Bell Syst. Tech. J. 32, 406-24 (1953).

Commun. Surveys Tuts. (1)

J. M. Yates, M. P. Rumsewicz, "Wavelength converters in dynamically reconfigurable WDM networks," Commun. Surveys Tuts. 2, 2-15 (1999).

IEEE Commun. Mag. (1)

H. Chao, Z. Jing, S. Liew, "Matching algorithms for three-stage bufferless Clos network switches," IEEE Commun. Mag. 41, 46-54 (2003).

IEEE Photon. Technol. Lett. (1)

F. Yan, W. Hu, W. Sun, W. Guo, Y. Jin, H. He, Y. Dong, "Placements of shared wavelength converter groups inside a cost-effective permuted Clos network," IEEE Photon. Technol. Lett. 19, 981-983 (2007).

IEEE Trans. Commun. (1)

Z. Zhang, Y. Yang, "Performance modeling of bufferless WDM packet switching networks with limited-range wavelength conversion," IEEE Trans. Commun. 54, 1473-1480 (2006).

J. Lightw. Technol. (5)

K.-C. Lee, V. O. K. Li, "A wavelength-convertible optical network," J. Lightw. Technol. 11, 962-970 (1993).

V. Eramo, M. Listanti, P. Pacifici, "A comparison study on the number of wavelength converters needed in synchronous and asynchronous all-optical switching architectures," J. Lightw. Technol. 21, 340-355 (2003).

V. Eramo, M. Listanti, "Packet loss in a bufferless WDM switch employing shared tunable wavelength converters," J. Lightw. Technol. 18, 1818-1833 (2000).

Y. Mingwu, L. Zengji, W. Aijun, "Accurate and approximate evaluations of asynchronous tunable-wavelength-converter sharing schemes in optical burst-switched networks," J. Lightw. Technol. 23, 2807-2815 (2005).

S. Jiang, G. Hu, S. Y. Liew, H. J. Chao, "Scheduling algorithms for shared fiber-delay-line optical packet switches—Part ii: The three-stage Clos-network case," J. Lightw. Technol. 23, 1601-1609 (2005).

Opt. Netw. Mag. (1)

T. Chai, T. Cheng, G. Shen, C. Lu, "Design and performance of optical cross-connect architectures with converter sharing," Opt. Netw. Mag. 3, 73-84 (2002).

Opt. Netw. Mag. SPIE (1)

H. Zang, J. P. Jue, B. Mukherjee, "A review of routing and wavelength assignment approaches for wavelength-routed optical WDM networks," Opt. Netw. Mag. SPIE 1, 47-60 (2000).

Photon. Netw. Commun. (1)

J. Comellas, J. Conesa, G. Junyent, "Design and performance analysis of a simple OXC," Photon. Netw. Commun. 5, 81-88 (2003).

Other (1)

P. G. Hu, Y. Wang, W. S. Hu, "A new grouped limited-wavelength conversion optical cross-connect and its scalability performance," Opt. Transmission, Switching, and Subsystems II, Proc. SPIE (2005) pp. 1040-1047.

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