Duty Cycle Division Multiplexing Technique for Wireless Communications

A new multiplexing technique which is called duty cycle division multiplexing (DCDM) is presented in this paper. Theoretical and simulation studies have been carried out to evaluate the performance of this technique based on the signal energy and symbol error rate (SER). A wireless channel based on free space propagation model is considered for the simulation study. Two modulation schemes of PSK and QAM are used to evaluate the technique, against the number of users and data rates. Also, the performance of the multiplexing technique is compared with the conventional time division multiplexing (TDM) technique as well as with the multilevel M-ary signaling. The study shows that the energy per bit in the DCDM technique, unlike that of the TDM technique increases with the number of users. The simulation results correspond with the theoretical study in which the DCDM technique has better SER than that of TDM.

[1]  G. Keiser.  Optical Fiber Communications , 1983 .

[2]  Fulvio Babich,et al.  Considerations on adaptive techniques for time-division multiplexing radio systems , 1999 .

[3]  Pierre A. Humblet,et al.  On the number of wavelengths and switches in all-optical networks , 1994, IEEE Trans. Commun..

[4]  Gerard J. Foschini,et al.  Using spread-spectrum in a high-capacity fiber-optic local network , 1988 .

[5]  D. Cotter,et al.  Ultra-high-bit-rate networking: from the transcontinental backbone to the desktop , 1997, IEEE Commun. Mag..

[6]  Dennis Roddy,et al.  Satellite Communications , 1989 .

[7]  Andrew D. Ellis,et al.  Optical time division multiplexing: systems and networks , 1994, IEEE Communications Magazine.

[8]  Wei Huang,et al.  Coherent optical CDMA (OCDMA) systems used for high-capacity optical fiber networks-system description, OTDMA comparison, and OCDMA/WDMA networking , 2000, Journal of Lightwave Technology.

[9]  K. Kikuchi,et al.  Clock recovery and demultiplexing of high-speed OTDM signal through combined use of bismuth oxide nonlinear fiber and erbium-doped bismuth oxide fiber , 2005, IEEE Photonics Technology Letters.

[10]  E. Tangdiongga,et al.  Clock recovery by a fiber ring laser employing a linear optical amplifier , 2004, IEEE Photonics Technology Letters.

[11]  Wei Huang,et al.  Coherent optical pulse CDMA systems based on coherent correlation detection , 1999, IEEE Trans. Commun..

[12]  T. Miyazaki,et al.  Simultaneous demultiplexing and clock recovery for 160-gb/s OTDM signal using a symmetric Mach-Zehnder switch in electrooptic feedback loop , 2003, IEEE Photonics Technology Letters.

[13]  Haim Kobrinski,et al.  Application of Wavelength Division Multiplexing to Communication Network Architectures , 1986, ICC.

[14]  H. Tsuchida.  160-gb/s optical clock recovery using a regeneratively mode-locked laser diode , 2006, IEEE Photonics Technology Letters.

[15]  F. Znidarsic,et al.  Realization of a commercial 10 Gbit/s TDM transmission system , 1996, Proceedings of International Conference on Communication Technology. ICCT '96.

[16]  Thomas M. Cover,et al.  Cooperative broadcasting , 1974, IEEE Trans. Inf. Theory.

[17]  Marc Moeneclaey,et al.  Extending the capacity of multiple access channels , 2000 .

[18]  Paul R. Prucnal,et al.  Spread spectrum fiber-optic local area network using optical processing , 1986 .

[19]  D. M. Spirit,et al.  20 Gbit/s, 205 km optical time division multiplexed transmission system , 1991 .

[20]  M. Suzuki,et al.  40-Gb/s optical clock recovery using an injection-locked optoelectronic oscillator , 2005, IEEE Photonics Technology Letters.

[21]  Charles A. Brackett,et al.  Dense Wavelength Division Multiplexing Networks: Principles and Applications , 1990, IEEE J. Sel. Areas Commun..

[22]  Andrew Lord,et al.  Optical multiplexing techniques for future Gbit/s transmission systems , 1988, IEEE International Conference on Communications, - Spanning the Universe..

[23]  Martlesham Heath.  OPTICAL MULTIPLEXING TECHNIQUES FOR FUTURE GBIT/S TRANSMISSION SYSTEMS. , 1988 .

[24]  J. Mork,et al.  Timing jitter analysis for clock recovery circuits based on an optoelectronic phase-locked loop (OPLL) , 2005, (CLEO). Conference on Lasers and Electro-Optics, 2005..

[25]  Pierre A. Humblet,et al.  Models of Blocking Probability in All-Optical Networks with and Without Wavelength Changers , 1995, IEEE J. Sel. Areas Commun..

[26]  Bahram Honary,et al.  Multimedia multiplexing protocol for future wireless communication channels , 2004 .

[27]  Theodore S. Rappaport,et al.  Wireless communications - principles and practice , 1996 .

[28]  H. Vincent Poor,et al.  Effects of Laser Phase Drift on Coherent Optical CDMA , 1995, IEEE J. Sel. Areas Commun..

[29]  Vincent W. S. Chan,et al.  All-Optical Network Consortium - Ultrafast TDM Networks (Invited Paper) , 1996, IEEE J. Sel. Areas Commun..

[30]  Paul R. Prucnal,et al.  Transparent Optical Networks with Time-Division Multiplexing (Invited Paper) , 1996, IEEE J. Sel. Areas Commun..

[31]  Jawad A. Salehi,et al.  Code division multiple-access techniques in optical fiber networks. I. Fundamental principles , 1989, IEEE Trans. Commun..