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Ghafour Amouzad Mahdiraji Mohamad Khazani Abdullah Makhfudzah Mokhtar Amin Malek Mohammadi Ahmad Fauzi Abas Safuraa Mohd Basir Raja Syamsul Azmir Raja Abdullah 《Photonic Network Communications》2010,19(3):233-239
The performance of ASK over DCDM for up to seven channels is reported. The aggregate bit rate of 70 Gb/s is achieved with
only 160-GHz modulation bandwidth. The clock and data recovery are realized at 10-GHz clock rate, which is very economic and
efficient. At 7 × 10 Gb/s, the worst receiver sensitivity of −10 dBm, OSNR of 41.5 dB and chromatic dispersion tolerance of
±7 ps/nm are achieved. Whereas, for the best channel, the receiver sensitivity, OSNR, and chromatic dispersion tolerance are
−23.5 dBm, 29 dB, and ±36 ps/nm, respectively. 相似文献
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Hajiyat Zahraa Raad Mayoof Sali Aduwati Mokhtar Makhfudzah Hashim Fazirulhisyam 《Wireless Personal Communications》2019,106(2):377-400
Wireless Personal Communications - Some channel coding schemes for 5G mobile communication system is facing difficulty in satisfying the user requirements in machine-type communication. This paper... 相似文献
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Amin Malekmohammadi Ghafour Amouzad Mahdiraji Ahmad Fauzi Abas Mohamad Khazani Abdullah Makhfudzah Mokhtar Mohd Fadlee A. Rasid 《Optical Fiber Technology》2009,15(4):337-343
An electrical multiplexing technique, namely Absolute Polar Duty Cycle Division Multiplexing (AP-DCDM) is reported for high-speed optical fiber communication systems. It is demonstrated that 40 Gb/s (4 × 10 Gb/s) AP-DCDM system shows a clear advantage over conventional 40 Gb/s RZ-OOK with 50% duty cycle in terms of dispersion tolerance and spectral efficiency. At 40 Gb/s its tolerance to chromatic dispersion (CD) is 124 ps/nm and 194 ps/nm for the worst and the best user, respectively. These values are higher than that of 40 Gb/s RZ-OOK, which is around 100 ps/nm. The spectral efficiency, receiver sensitivity and OSNR for different number of channels are discussed. Comparison against other modulation formats namely duobinary, Non-Return-to-Zero (NRZ)-OOK and RZ-Differential Quadrature Phase-Shift Keying (RZ-DQPSK) at 40 Gb/s are made. It is shown that AP-DCDM has the best receiver sensitivity (−32 dBm) and better CD tolerance (±200 ps/nm) than NRZ-OOK and RZ-DQPSK. In reference to duobinary, AP-DCDM has better receiver sensitivity but worse dispersion tolerance. 相似文献
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