The Performance of Synchronization Algorithm in Real-time OFDM—PON System

Du, Yongle; Zhang, Jingxian

doi:10.11591/telkomnika.v10i7.1576

Cited by 10 publications

(4 citation statements)

References 18 publications

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“…n n x t S n x t S n (11) The RC4 algorithm is widely used in popular protocols. Although some defects are found in the key, the binary stream generated by the RC4 has a good random performance.…”

Section: Fips 140-2 Testmentioning

confidence: 99%

A Bidirectional Generalized Synchronization Theorem -Based Chaotic Pseudorandom Number Generator

Han

Lee

2013

TELKOMNIKA

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Keywords: sinkronisasi tergeneralisasi; urutan acak semu (pseudo-random sequence), tes FIPS-140-2, sistem diskret dua arah Abstract In order to design good pseudorandom number generator, using a bidirectional generalized synchronization theorem for discrete chaos system, this paper introduces a new 5-dimensional bidirectional generalized chaos synchronization system (BGCSDS), whose prototype is a novel chaotic system. Numerical simulation showed that two pair variables of the BGCSDS achieve generalized chaos synchronization via a transform H. A chaos-based pseudorandom number generator (CPNG) was designed by the new BGCSDS. Using the FIPS-140-2 tests issued by the National Institute of Standard and Technology (NIST) verified the randomness of the 1000 binary number sequences generated via the CPNG and the RC4 algorithm respectively. The results showed all the tested sequences passed the FIPS-140-2 tests. The confidence interval analysis showed the statistical properties of the randomness of the sequences generated via the CPNG and the RC4 algorithm do not have significant differences. So, the CPNG is suitable to be used in the information security filed.

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Section: Fips 140-2 Testmentioning

confidence: 99%

A Bidirectional Generalized Synchronization Theorem -Based Chaotic Pseudorandom Number Generator

Han

Lee

2013

TELKOMNIKA

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“…Although WDM PON can resolved this matter but still this technology has not been commercially adopted due to its cost and requirement of separate optical fibers for every ONU from OLT [11][12]. OFDM PON is another ideal candidate for future energy efficient PONs, but it suffered from synchronization problem and its complex digital signal processing operations like FFT and IFFT, which require additional computational resources [13].…”

Section: Introductionmentioning

confidence: 99%

Energy Efficient Frame Structure for Gigabit Passive Optical Networks

Butt

Idrus

Radzi

et al. 2016

IJECE

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Increasing power consumption in information and communication access networks is one of the major cause of greenhouse gas emissions. These emissions are harmful for life on earth. Passive Optical Networks (PONs) are comparatively energy efficient network but the broadcast nature of downstream traffic leads to unnecessary frames processing by the optical network units and cause of energy wastage. Bi-PON technique has solved this problem by changing the XGPON / GPON frame structure into an interleaved pattern. However, this structure also requires additional hardware changings at the optical network units. In this paper, we have tried to achieve the same objective by making a few changings in the GPON frame structure without modifying the existing hardware structure. The simulation results show that 25.25% processing energy of an ONU can be saved by incorporating these changes.

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“…Coherent WDM systems typically have few subcarriers and do not use training symbols, but rely on blind channel estimation instead [6], [7], [8], [9]. OFDM is a special class of multi carrier modulation (MCM) [10], [11], [12]. The MCM transmitted signal s(t) is represented as given in equations 1, 2 and 3.…”

Section: Introductionmentioning

confidence: 99%

Implementation of optical OFDM based system for optical networks

Rindhe

Digge

Narayankhedkar

2014

2014 International Conference on Advances in Communication and Computing Technologies (ICACACT 2014)

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Orthogonal frequency division multiplexing (OFDM), a frequency division multiplexing scheme utilized as a digital multi-carrier modulation technique, implemented using optical fiber link for practical applications thereby developing optical OFDM using OptSim simulation. OFDM has many advantages over other modulation techniques such as a high resistance to inter-symbol interference (ISI) and it is robust against fading caused by multipath propagation. Optical fiber cable (OFC) as a transmission media is used for distortion less transmission of data at a very higher data speed. OFC cable has a lot of advantages over other media. And OFDM over OFC cable will provide data speeds at a very high speed and with very less losses. In this work optical transmitter and receiver for OFDM based optical network has designed for high speed data transmission over optical fiber. While modeling the system we have also used post, pre and symmetric compensation technique to reconfigure the bandwidth along with add drop multiplexer, tunable filters and optical amplifiers to achieve high performance with minimum distortion and low bit error rate (BER). Index Terms-CD CO-OFDM, DSF FTTH FWM GVD , ISI MZIM , OSNR PMD SPM SBS, SRS SMF, XPM

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The Performance of Synchronization Algorithm in Real-time OFDM—PON System

Cited by 10 publications

References 18 publications

A Bidirectional Generalized Synchronization Theorem -Based Chaotic Pseudorandom Number Generator

A Bidirectional Generalized Synchronization Theorem -Based Chaotic Pseudorandom Number Generator

Energy Efficient Frame Structure for Gigabit Passive Optical Networks

Implementation of optical OFDM based system for optical networks

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