Complementary Unipolar Duty Cycle Division Multiplexing (CUDCDM): a Novel and Economical Multiplexing Technique

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A new multiplexing technique based on duty cycle division is proposed, under the name: Complementary Unipolar Duty Cycle Division Multiplexing (CUDCDM). CUDCDM can be applied in both electrical and optical domains. The new technique allows for more efficient use of time slots as well as the spectrum taking advantage of both the conventional time division multiplexing TDM and FDM.  The basic properties based on theoretical analysis as well as simulation studies have been done to evaluate the performance of this technique based on the signal energy and symbol error rate (SER). In this paper the performance of complementary unipolar duty cycle division multiplexing compared with multi level M-ary signaling as well as the conventional (TDM) technique. The simulation has been set for wireless transmission based on free space propagation model with adaptive white Gaussian noise (AWGN). PSK and QAM are used as modulation schemes to evaluate these techniques against data rate and number of users. The study shows that the energy per bit in CUDCDM, unlike that of TDM technique, increases with the number of users. The simulation results correspond with the theoretical study in which the CUDCDM technique has better SER than that of TDM, even in more distances.
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Multiplexing Technique; Duty Cycle; Wireless Systems

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Wayne Tomasi. Advanced Electronic Communications Systems 4th Edition, Prentice Hall PTR, 1998

Edmond zahedi, Digital Data communication prentice-Hall , inc 2002

Jayalath, A.D.S., Rajatheva, R.M.A.P., Ahmed, K.M, Coded orthogonal frequency division multiplexing for wireless” Vehicular Technology Conference, 1999 IEEE 49thVolume 3, Issue, Jul 1999 Page(s):2049 - 2053 vol.3.

R. S. Tucker, G. Eisenstein, S. K. Korotky, “Optical time division multiplexing for very high bit-rate transmission”, Journal. Light wave Technology, Volume 6, Issue 11, Nov. 1988, pp. 1737 – 1749

M. D. Spirit, A. D. Ellis, and P. E. Barnsley, "Optical time division multiplexing: Systems and networks," IEEE Commun. Mag., vol. 32, no.12, pp. 56-62, Dec. 1994.

F. Babich, "Considerations on adaptive techniques for time-division multiplexing radio systems," IEEE Trans. on Vehicular Tech., vol. 48,no. 6, pp. 1862-1873, Nov. 1999.

S. A. Aljunid, M. Ismail, A. R. Ramli, B. M. Ali, M. K. Abdullah, “A new family of optical code sequences for spectral-amplitude-coding optical CDMA systems”, Photon. Technol. Lett., Vol. 16, Issue 10, Oct. 2004, pp. 2383 – 2385

J. A. Salehi, "Code division multiple-access techniques in optical fiber networks Parts I: Fundamental principles," IEEE Trans. Commun., vol.37, pp. 824-833, Aug. 1989.

Joseph c.Palais. Fiber optic communications,4th edition, Prentice Hall,1998.

M. K. Abdullah, M. F. Abdalla, A. F. Abas” Novel and Economical Optical Multiplexing and Electrical Demultiplexing technique for High Speed Fiber Optics Networks” Wireless and Optical Communications Networks, 2007.

Mahdiraji, M.K.Abdullah,A.F.Abus ,” Duty Cycle Division Multiplexing Technique for Wireless Communications ”Wireless and Optical Communications Networks, 2007.

Leon W.Couch II. Digital and analog communication systems Macmillan publishing company,Inc.USA.1993

T. S. Rappaport. Wireless communications: principles and practice. 2nd Edition, Prentice-Hall, Inc., USA, 2002.

Harold kolimbiris. Digital communication systems with satellite and fiber optics applications. Prentice-Hall, Inc., USA 2000

Bahaa E.A.saleh, Maluin carl Teich. Fundamentals of photonics.john wilay &sons.Inc 1994.

A. F. A. Ismail, D. Sandel, A. Hidayat, B. Milivojevic, S. Bhandare, H. Zhang, R. Noe, “2.56 Tbit/s, 1.6 bit/s/Hz, 40 Gbaud RZ-DQPSK polarization division multiplex transmission over 273 km”, 9th Optoelectronics and Communications Conference/3rd International Conference on Optical Internet (OECC/COIN2004), , PD1-4, Yokohama, Japan, July 12-16, 2004.

D. Roddy. Satellite communications 3rd Edition, McGraw-Hill, Singapore,2001.


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