Broadband radio-over-fiber-based wireless access with 10 Gbits/s data rates

Insua, Ignacio González; Plettemeier, Dirk; Schäffer, C.

doi:10.1364/jon.8.000077

Cited by 10 publications

(4 citation statements)

References 8 publications

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“…kHz to MHz), with linewidths well below the bit rate of the data to be transmitted. Consequently, heterodyned lasers do not necessarily need to be correlated in phase or frequency to be used in mm-wave RoF systems [16][17][18]. RoF systems employing such uncorrelated lasers can overcome the relevant phase-noise effects by applying incoherent demodulation, such as RF self-homodyning.…”

Section: Introductionmentioning

confidence: 99%

Simplification of millimeter-wave radio-over-fiber system employing heterodyning of uncorrelated optical carriers and self-homodyning of RF signal at the receiver

Islam¹,

Bakaul²,

Nirmalathas³

et al. 2012

Opt. Express

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A simplified millimeter-wave (mm-wave) radio-over-fiber (RoF) system employing a combination of optical heterodyning in signal generation and radio frequency (RF) self-homodyning in data recovery process is proposed and demonstrated. Three variants of the system are considered in which two independent uncorrelated lasers with a frequency offset equal to the desired mm-wave carrier frequency are used to generate the transmitted signal. Uncorrelated phase noise in the resulting mm-wave signal after photodetection was overcome by using RF self-homodyning in the data recovery process. Theoretical analyses followed by experimental results and simulated characterizations confirm the system's performance. A key advantage of the system is that it avoids the need for high-speed electro-optic and electronic devices operating at the RF carrier frequency at both the central station and base stations.

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Section: Introductionmentioning

confidence: 99%

Simplification of millimeter-wave radio-over-fiber system employing heterodyning of uncorrelated optical carriers and self-homodyning of RF signal at the receiver

Islam¹,

Bakaul²,

Nirmalathas³

et al. 2012

Opt. Express

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“…As mm-wave links in these systems will be an integral part of low-cost FTTH infrastructure, and will largely rely on the characteristics of optical signal at the ONU, reinvention of various methods in photonic and mm-wave processing is essential to adapt to the changing circumstances. We briefly proposed such a concept in [11], where a simpler optical heterodyning [12,13] is exploited to generate both baseband and mm-wave signal together. This paper extends the previous work by proposing a transparent FTTH and mm-wave interface and demonstrating and it for various bit rates at 2.5 Gbps, 1.25 Gbps and 155 Mbps.…”

Section: Introductionmentioning

confidence: 99%

In-house seamless and transparent internet on the move through cordless access to FTTH

Bakaul

Islam

Nirmalathas

et al. 2012

2012 IEEE International Topical Meeting on Microwave Photonics

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The recent proliferation of modern portable devices and applications demands to deploy in-house high-speed Internet on the move. Millimeter-wave (mm-wave) wireless with its inherent multi-Gb/s capacities is seen as an alternative to fiber-tothe-home (FTTH) that has benchmarked the access of future Internet through fiber. This paper investigates a suitable approach to interface FTTH with mm-waves that enables inhouse transparent and seamless access to Internet on the move through cordless access to FTTH. In such case, in addition to fixed point access, in-house optical network unit (ONU) establishes mm-wave cordless communications without any translation of FTTH data or modulation format.

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“…This paper proposes a modified ONU scheme to generate such fixed and mobile signals simultaneously. The use of unlocked heterodyning and RF self-homodyning respectively in mobile signal generation and recovery processes greatly simplify the modifications [6,7]. another optical carrier λ 2 , separated from λ 1 by a mmwave frequency, is coupled with the actual FTTH signal as shown in inset of Fig.…”

Section: Introductionmentioning

confidence: 99%

“…1(c) depicts RF self-homodyning scheme to recover mobile data. This scheme, due to square-law characteristics, produces sum and difference frequencies of original RF signal and results in baseband data, free from phase-noise effects [6,7]. Therefore, although unlocked heterodyning was used to generate mm-wave RF signal, the mobile baseband data recovered through RF self-homodyning is free from any phase-noise effect.…”

Section: Introductionmentioning

confidence: 99%

Provisioning in-house mobility for FTTH customers by incorporating modifications in optical network unit (ONU)

Bakaul

Islam

Nirmalathas

et al. 2011

IEEE Photonic Society 24th Annual Meeting

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Fig. 1: (a): Schematic diagram of in-house simultaneous fixed and mobile access for FTTH customers; (b): Configuration of the proposed modified ONU enabling FTTH services to both fixed and mobile media, potentially at equal speeds; and (c): Mechanism to recover mobile data Abstract-A modified ONU provisioning in-house mobility for FTTH customers is proposed and demonstrated. This scheme, in addition to fixed point access, distributes FTTH services wirelessly, potentially at equal speeds.

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Broadband radio-over-fiber-based wireless access with 10 Gbits/s data rates

Cited by 10 publications

References 8 publications

Simplification of millimeter-wave radio-over-fiber system employing heterodyning of uncorrelated optical carriers and self-homodyning of RF signal at the receiver

Simplification of millimeter-wave radio-over-fiber system employing heterodyning of uncorrelated optical carriers and self-homodyning of RF signal at the receiver

In-house seamless and transparent internet on the move through cordless access to FTTH

Provisioning in-house mobility for FTTH customers by incorporating modifications in optical network unit (ONU)

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