Progress In Electromagnetics Research
ISSN: 1070-4698, E-ISSN: 1559-8985
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By N. G. Tarhuni, M. Elmusrati, and T. Korhonenn

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In this paper we use optical power control to support multirate transmission over temporal optical CDMA networks. We apply the centralized power control algorithm to set the transmit power of the users' optical sources in order to satisfy a given target QoS. In addition, optical amplifiers are included to enhance the overall system performance while the Amplified Spontaneous Emission (ASE) is considered as the main noise source. The objective function defined as the sum of the transmitted optical power from all nodes is minimized subject to a signal-to-interference (SIR) constraint. Moreover, the network feasibility, defined as the ability to evaluate a power vector that satisfy the target SIR, is discussed in terms of the spectral radius of the network interference matrix. Next, the spectral radius of the network interference matrix is investigated and modeled as a truncated Gaussian distribution. Last, a rate reduction algorithm, categorized in terms of the number of nodes involved in the process of rate reduction, is proposed to increase the network feasibility. As more nodes are added to the rate reduction campaign, the network feasibility is significantly enhanced. For typical network parameters we find by simulating 104 random network realizations that a threenode rate reduction results in 99% network feasibility.

Citation: (See works that cites this article)
N. G. Tarhuni, M. Elmusrati, and T. Korhonenn, "Multi-Class Optical-CDMA Network Using Optical Power Control," Progress In Electromagnetics Research, Vol. 64, 279-292, 2006.

1. Kitayama, K., H. Sotobayashi, and N. Wada, "Optical Code Division Multiplexing (OCDM) and its application to photonic networks," IEICE Trans: Fundamentals, Vol. E82-A, No. 12, 82, 1999.

2. Yashima, H. and T. Kobayashi, "Optical CDMA with timehopping and power control for multimedia networks," Journal of Lightwave Tech., Vol. 21, No. 3, 695-702, 2003.

3. Intay, E., H. Shalaby, P. Fortier, and L. Rusch, "Multirate optical fast frequency-hopping CDMA system using power control," Journal of Lightwave Tech., Vol. 20, No. 2, 166-177, 2002.

4. Tarhuni, N., T. Korhonen, E. Mutafungwa, and M. Elmusrati, "Multi-class optical orthogonal codes for multi-service optical CDMA networks," Journal of Lightwave Tech., Vol. 24, No. 2, 2006.

5. Tarhuni, N., M. Elmusrati, T. Korhonen, and E. Mutafungwa, Multi-access-interference mitigation using power control in optical-CDMA star networks, IEEE International Conference on Comm. ICC 2005, 16-20, 2005.

6. Tarhuni, N., T. Korhonen, M. Elmusrati, and E. Mutafungwa, "Power control of optical CDMA star networks," Elsevier Optic Comm. Journal.

7. Tarhuni, N., M. Elmusrati, and T. Korhonen, Nonlinear power control for asynchronous fiber-optic CDMA networks, IEEE International Conference on Comm. ICC 2006, 11-15.

8. Baby, V., B. C. Wang, L. Xu, I. Glesk, and P. R. Prucnal, "Highly scalable serial-parallel optical delay line," Optics Communications, Vol. 218, 235-242, 2003.

9. Zhang, J. and G. Picchi, "Tunable prime code encoder/decoder for all-optical CDMA application," Elect. Letters, Vol. 29, 1211-1212, 1993.

10. Ramaswami, R. and K. N. Sivarajan, Optical Networks, a Practical Perspective, Morgan Kaufmann Publishers, 1998.

11. Yang, G. C. and W. C. Kwong, Prime Codes with Applications to CDMA Wireless and Optical Networks, Artech House, 2002.

12. Prucnal, P., M. Santoro, and T. Fan, "Spread spectrum fiber-optic local area network using optical processing," Journal of Lightwave Technology, Vol. 4, No. 5, 547-554, 1986.

13. Salehi, J., "Code division multiple access techniques in optical fiber networks—Part I: Fundamental concepts," IEEE Trans. Comm., Vol. 37, No. 8, 1989.

14. Chung, F. R. K., J. A. Salehi, and V. K. Wei, "Optical orthogonal codes: Design, analysis, and applications," IEEE Trans. on Info. Theory, Vol. 35, No. 3, 1989.

15. Gantmacher, F., The Theory of Matrices, Chelsea Publising Company, 1964.

16. Elmusrati, M., N. Tarhuni, R. Jntti, and H. Koivo, Distributed minimum outage removal algorithm for multi-rate CDMA wireless communication systems, Proc. of the 6th Nordic Signal Processing Symp. NORSIG, 9-11, 2004.

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