Bidirectional Radio-Over-Fiber System With Phase-Modulation Downlink and RF Oscillator-Free Uplink Using a Reflective SOA

Yu, Xianbin; Gibbon, Timothy Braidwood; Monroy, Idelfonso Tafur

doi:10.1109/lpt.2008.2009947

Cited by 34 publications

(10 citation statements)

References 14 publications

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“…Thus, the UL signal can be filtered out from the signal that is photo-detected at the BS. Furthermore, it is possible to phase-modulate the optical carrier during its DL transmission and then intensity modulate the same optical carrier for its UL transmission as detailed below [123], [124], [6]. As shown in Fig.…”

Section: ) Optical Carrier Recovery and Re-use (Ocrr)mentioning

confidence: 99%

“…65 was employed in conjugation with DL frequency quadrupling. 2008 Yu et al [123] Implemented ORM by employing optical phase modulation in the DL, while employing 2009 Ji et al [124] optical intensity modulation in the UL. 2013 Thomas et al [3] Implemented wavelength re-use by incorporating the performance improving Digitized ROF (DROF) technique in the UL of Fig.…”

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confidence: 99%

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Performance Improvement and Cost Reduction Techniques for Radio Over Fiber Communications

Thomas

El‐Hajjar

Hanzo

2015

IEEE Commun. Surv. Tutorials

141

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Abstract-Advanced cost reduction and performance improvement techniques conceived for Radio Over Fiber (ROF) communications are considered. ROF techniques are expected to form the backbone of the future 5G generation of wireless networks. The achievable link performance and the associated deployement cost constitute the most salient metrics of a ROF architecture. In this paper, we commence by providing a rudimentary overview of the ROF architecture and then elaborate on ROF techniques designed for improving the attainable system performance. We conclude by describing the ROF techniques conceived for reducing the ROF system installation costs.

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Section: ) Optical Carrier Recovery and Re-use (Ocrr)mentioning

confidence: 99%

mentioning

confidence: 99%

Performance Improvement and Cost Reduction Techniques for Radio Over Fiber Communications

Thomas

El‐Hajjar

Hanzo

2015

IEEE Commun. Surv. Tutorials

141

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“…A time delay is used to avoid collisions in a two optical directions. Fig.5 illustrates the output reflected signal from RSOA, the noise level in the graph which is due to phase to intensity modulation conversion inside RSOA [6,7]. The uplink receiver consists of a photodetector PD followed by a low pass filter LPF; the BER is displayed at the central office using BER analyzer.…”

Section: System Architecturementioning

confidence: 99%

Comparison between OQPSK and DPSK Bidirectional Radio over Fiber Transmission Systems

El-Nahal¹,

Salha²

2013

ujeee

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Radio over fiber is becoming an increasingly important technology for the wireless market since it introduces a higher data transmission rate and large bandwidth. In this paper, we have compared OQPSK and DPSK bidirectional radio over fiber ROF systems, where an offset quadrature phase shift keying (OQPSK) or differential phase shift keying (DPSK) signals are used for down-link and an on-off keying (OOK) signal re-modulated for up-link. Several measurements were performed including Bit Error Rate (BER) curves for uplink and downlink, RSOA gain curve and noise figure with the variation of input power and temperature for each system.

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“…In our WDM-PON system, the onoff keying (OOK) upstream signal at an ONU is generated by reusing differential quadrature phase-shift keying (DPSK) downstream wavelengths [8] (CO). N wavelengths (e.g., Ȝ 1 -Ȝ n ) are designated for the up/downstream traffic of the N individual ONUs, and they are chosen to match with the transmission passbands of the 1 x N AWG.…”

Section: Introductionmentioning

confidence: 99%

Intra and inter-PON ONU to ONU virtual private networking using OFDMA in a ring topology

Deng

Zhao

Pang

et al. 2011

2011 International Topical Meeting on Microwave Photonics Jointly Held With the 2011 Asia-Pacific Microwave Photonics Conferenc

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Abstract-In this paper, we propose a novel WDM-PON architecture to support efficient and bandwidth-scalable virtual private network (VPN) emulation over both inter-PON and intra-PON. The virtual ring link for the VPN communications among ONUs is realized by using additionally low-cost optical passive components and OFDMA technology. Moreover, the downstream traffic wavelength is reused for the upstream traffic signal by using re-modulation technology. We report on a successful transmission of 10.7 Gbps OOK upstream and 10.7 Gbps DPSK downstream, together with 1.25 Gbps 16-QAM OFDM VPN traffic, over 20 km no-zero dispersion shifted fiber (NZDSF). Keywords-Optical access networks; virtual private network (VPN); orthogonal frequency division multiple access (OFDMA); passive optical network (PON)

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Bidirectional Radio-Over-Fiber System With Phase-Modulation Downlink and RF Oscillator-Free Uplink Using a Reflective SOA

Cited by 34 publications

References 14 publications

Performance Improvement and Cost Reduction Techniques for Radio Over Fiber Communications

Performance Improvement and Cost Reduction Techniques for Radio Over Fiber Communications

Comparison between OQPSK and DPSK Bidirectional Radio over Fiber Transmission Systems

Intra and inter-PON ONU to ONU virtual private networking using OFDMA in a ring topology

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