Abstract

A random-access protocol for an optical direct-detection code-division-multiple-access (CDMA) packet network is proposed. This protocol is called a round-robin receiver/transmitter (R^3T) protocol. A mathematical description of the protocol is presented using a detailed state diagram. Several performance measures, namely, steady-state system throughput, protocol efficiency, and average packet delay, are derived based on the equilibrium point-analysis technique. The effect of several design parameters on the above performance measures have been examined with the aid of a set of numerical examples. In our numerical calculations chip-level models have been adopted at the receiver side. Our results reveal that an efficiency of more than 90% can be reached easily with mild system parameters. Further an asymptotic efficiency almost equal to 100% is also achievable.

© 2004 IEEE

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J. Lightwave Technol. (5)

R. M. Gagliardi, A. J. Mendez, M. R. Dale and E. Park, "Fiber-optic digital video multiplexing using optical CDMA", J. Lightwave Technol., vol. 11, pp. 20-26, Jan. 1993.

T. Ohtsuki, "Performance analysis of direct-detection optical asynchronous CDMA systems with double optical hard-limiters", J. Lightwave Technol., vol. 15, pp. 452-457, Mar. 1997.

H. M. H. Shalaby, "Chip-level detection in optical code-division multiple-access", J. Lightwave Technol., vol. 16, pp. 1077-1087, June 1998 .

S. Zahedi and J. A. Salehi, "Analytical comparison of various fiber-optic CDMA receiver structures", J. Lightwave Technol., vol. 18, pp. 1718-1727, Dec. 2000.

H. M. H. Shalaby, "Optical CDMA random access protocols with and without pretransmission coordination", J. Lightwave Technol., vol. 21, pp. 2455-2462, Nov. 2003.

Other (15)

J. P. Jue, M. S. Borella and B. Mukherjee, "Performance analysis of the rainbow WDM optical network prototype", IEEE J. Select. Areas Commun., vol. 14, pp. 945-951, June 1996.

C.-T. Chen, Linear System Theory and Design, 3rd ed. New York: Oxford Univ. Press, 1999.

J.-R. Sack and J. Urrutia, Handbook of Computational Geometry, North Holland: The Netherlands: Elsevier, 2000.

T. W. F. Chang and E. H. Sargent, "Optical CDMA using 2-D codes: the optimal single-user detector", IEEE Commun. Lett., vol. 5, pp. 169-171, Apr. 2001.

H. M. H. Shalaby, "Complexities, error probabilities and capacities of optical OOK-CDMA communication systems", IEEE Trans. Commun., vol. 50, pp. 2009-2015, Dec. 2002.

C.-S. Hsu and V. O. K. Li, "Performance analysis of slotted fiber-optic code-division multiple-access (CDMA) packet networks", IEEE Trans. Commun., vol. 45, pp. 819-828, July 1997.

C.-S. Hsu and V. O. K. Li, "Performance analysis of unslotted fiber-optic code-division multiple-access (CDMA) packet networks", IEEE Trans. Commun. , vol. 45, pp. 978-987, Aug. 1997.

J. Mückenheim and K. Iversen, "A new design method for optical CDMA computer networks", in Proc. IEEE Symp. Computers and Communications (ISCC '97) , Alexandria, Egypt,July 1-3 1997, pp. 589-593.

A. Stok and E. H. Sargent, "System performance comparison of optical CDMA and WDMA in a broadcast local area network", IEEE Commun. Lett., vol. 6, pp. 409-411, Sept. 2002.

T. Ohtsuki, "Direct-detection optical asynchronous CDMA systems with double optical hard-limiters: APD noise and thermal noise", in Proc. IEEE Global Telecommun. Conf. (GLOBECOM'98) , Sydney, Australia,Nov. 8-12 1998, pp. 1616-1621.

F. R. K. Chung, J. A. Salehi and V. K. Wei, "Optical orthogonal codes: Design, analysis and applications", IEEE Trans. Inform. Theory, vol. 35, pp. 595-604, May 1989.

J. A. Salehi and C. A. Brackett, "Code division multiple-access techniques in optical fiber networks-Part II: Systems performance analysis", IEEE Trans. Commun., vol. 37, pp. 834-842, Aug. 1989.

M. Brandt-Pearce and B. Aazhang, "Performance analysis of single-user and multiuser detectors for optical code division multiple access communication systems", IEEE Trans. Commun., vol. 43, pp. 435-444, Feb./Mar./Apr. 1995.

H. M. H. Shalaby, "Performance analysis of optical synchronous CDMA communication systems with PPM signaling", IEEE Trans. Commun., vol. 43, pp. 624-634, Feb./Mar./Apr. 1995.

J. G. Zhang, "High-speed optical fiber networks using code-division multiple access for future real-time computer communications", IEICE Trans. Commun., vol. E79-B, pp. 932-938, July 1996.

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