20 Gbit/s, 205 km optical time division multiplexed transmission system

Wickens, G.E.; Spirit, D.M.; Blank, L.C.

doi:10.1049/el:19910607

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Comparison Of Dcdm With M-ary and Tdm Technique1

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2007

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Cited by 19 publications

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“…For example, as far as transmitter design is concerned, the OTDM technique requires one modulator for each user [27,28]. The use of multiple modulators is costly and may lead to cross-talks [4].…”

Section: Comparison Of Dcdm With M-ary and Tdm Techniquementioning

confidence: 99%

A new duty cycle based digital multiplexing technique

Abdullah

Mahdiraji

Elhag

2007

2007 IEEE International Conference on Telecommunications and Malaysia International Conference on Communications

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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 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.

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Section: Comparison Of Dcdm With M-ary and Tdm Techniquementioning

confidence: 99%