Search Results - "Arbab, V.R."

Theoretical and Experimental Investigations of Direct-Detected RF-Tone-Assisted Optical OFDM Systems by Wei-Ren Peng, Xiaoxia Wu, Arbab, V.R., Kai-Ming Feng, Shamee, B., Christen, L.C., Jeng-Yuan Yang, Willner, A.E., Sien Chi

“…In this paper, we propose and experimentally demonstrate a radio frequency (RF)-tone-assisted optical orthogonal frequency-division multiplexing (OFDM)…”
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Advanced Techniques to Increase the Number of Users and Bit Rate in OCDMA Networks by Willner, A.E., Saghari, P., Arbab, V.R.

“…Optical code-division multiple-access (OCDMA) systems have recently become a topic of interest for their potential application in access points and optical…”
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Optical performance monitoring of data degradation by evaluating the deformation of an asynchronously generated I/Q data constellation by Arbab, V.R., Xiaoxia Wu, Willner, A.E., Weber, C.L.

“…We present a technique of using asynchronously generated constellation pattern to simultaneously monitor CD and first order PMD in DQPSK systems. By…”
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Experimental demonstration of multicarrier-CDMA for passive optical networks by Arbab, V.R., Wei-Ren Peng, Xiaoxia Wu, Willner, A.E.

“…Optical multicarrier-CDMA is experimentally demonstrated for the first time. The system supports up to 256 users at a total bit rate of 15-Gb/s with almost no…”
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Tunable optical wavelength conversion of a 10 Gb/s OFDM data signal using a periodically-poled lithium niobate waveguide by Xiaoxia Wu, Wei-Ren Peng, W.-R., Arbab, V.R., Willner, A.E.

“…We experimentally demonstrate tunable wavelength conversion of 10 Gb/s RF-tone assisted OFDM signal with high conversion efficiency over ~30 nm tuning range…”
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Experimental demonstration of a high-speed optical correlator for phase-modulated packets by Salem, R., Nuccio, S., Arbab, V.R., Xiaoxia Wu, Foster, M.A., Geraghty, D.F., Willner, A.E., Gaeta, A.L.

“…A high-speed programmable optical correlator for phase-modulated packets is demonstrated at 40 Gb/s. The system is based on the temporal analogue of the…”
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A near optimum RREQ flooding algorithm in sensor networks by Ghiassi-Farrokhfal, Y., Arbab, V.R., Pakravan, M.R.

“…Most of the energy efficient routing algorithms proposed for sensor networks are reactive routing algorithms. By definition, reactive algorithms are those in…”
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Experimental demonstration of code position modulation in an O-CDMA system to increase the number of users by Saghari, P., Haghi, M., Arbab, V.R., Kumar, S., Gholizadeh, R., Omrani, R., Willner, A.E., Kumar, P.V., Touch, J.

“…A novel, code-position modulation(CPM) that permits increase in the number of active users proposed and experimentally demonstrated. CPM-O-CDMA system with…”
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Analysis on the capacity of wireless ad hoc networks by Arbab, V.R., Zahedi, S., Khalaj, B.H.

“…We deal with ad hoc networks that consist of a group of nodes having the same capabilities and responsibilities and communicating to each other directly or by…”
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Increasing the Number of Users in an Optical CDMA System by Pulse-Position Modulation by Saghari, P., Omrani, R., Arbab, V.R., Willner, A.E., Kumar, P.V.

“…We analytically show that using PPM-OCDMA can increase the spectral efficiency of an OCDMA system up to factor of 3. Utilizing our results we generate the…”
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CD/PMD-Insensitive optical performance monitoring of OSNR degradation in an 80-Gb/s pol-muxed RZ-DPSK system by Yang, J.-Y., Zhang, L., Yue, Y., Arbab, V.R., Agarwal, A., Paraschis, L., Willner, A.E.

“…We experimentally demonstrate an OSNR monitoring technique for 80-Gb/s polarization-multiplexed RZ-DPSK utilizing narrowband optical filter and RF spectrum…”
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Estimation error minimization in sensor networks with mobile agents by Ghiassi-Farrokhfal, Y., Arbab, V.R., Pakravan, M.R.

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Variable Bit Rate Optical CDMA Networks Using Multiple Pulse Position Modulation by Arbab, V.R., Saghari, P., Jayachandran, N.M., Willner, A.E.

“…We have demonstrated multiple-pulse position modulation to achieve a variable bit rate OCDMA system, operating at different bit rates of 2.5, 4.3, and 5.7…”
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Analysis of fiber dispersion effects on phase modulated signals using constellation diagram by Arbab, V.R., Xiaoxia Wu, Christen, L.C., Jeng-Yuan Yang, Dennis, T., Williams, P., Willner, A.E.

“…Effects of CD and first order PMD on the shape of the constellation diagrams of DQPSK systems are presented, and by quantifying variations in the constellation…”
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Experimental demonstration of all-optical "missing chip detection" to alleviate near-far effect in O-CDMA systems by Kumar, S., Saghari, P., Ebrahimi, P., Haghi, M., Arbab, V.R., Wilner, A.E.

“…We demonstrate a novel receiver design for O-CDMA systems based on all-optical missing-chip detection. Penalty due to near-far effect is reduced by >8 dB…”
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