Robust synchronization algorithm for broadband PLC based on Wavelet-OFDM

Nombela, Francisco; García, Enrique; Ureña, J.; Hernández, Álvaro; Poudereux, Pablo

doi:10.1109/etfa.2015.7301480

Cited by 2 publications

(2 citation statements)

References 18 publications

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“…Figure 2 shows a block diagram of the proposed synchronization algorithm, as well as the channel estimation and equalization modules. The proposed pilot-based symbol timing estimation uses cross-correlation techniques for PLC channel as it provides a better performance than the auto-correlation metric [ 33 , 34 ], and due to the negligible Doppler effect in PLC channels.…”

Section: Proposed Synchronization Algorithmmentioning

confidence: 99%

Efficient Implementation of a Symbol Timing Estimator for Broadband PLC

Nombela

García

Mateos

et al. 2015

Sensors

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Broadband Power Line Communications (PLC) have taken advantage of the research advances in multi-carrier modulations to mitigate frequency selective fading, and their adoption opens up a myriad of applications in the field of sensory and automation systems, multimedia connectivity or smart spaces. Nonetheless, the use of these multi-carrier modulations, such as Wavelet-OFDM, requires a highly accurate symbol timing estimation for reliably recovering of transmitted data. Furthermore, the PLC channel presents some particularities that prevent the direct use of previous synchronization algorithms proposed in wireless communication systems. Therefore more research effort should be involved in the design and implementation of novel and robust synchronization algorithms for PLC, thus enabling real-time synchronization. This paper proposes a symbol timing estimator for broadband PLC based on cross-correlation with multilevel complementary sequences or Zadoff-Chu sequences and its efficient implementation in a FPGA; the obtained results show a 90% of success rate in symbol timing estimation for a certain PLC channel model and a reduced resource consumption for its implementation in a Xilinx Kyntex FPGA.

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Section: Proposed Synchronization Algorithmmentioning

confidence: 99%

Efficient Implementation of a Symbol Timing Estimator for Broadband PLC

Nombela

García

Mateos

et al. 2015

Sensors

Self Cite

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“…In extremely unfavorable cases, they can prevent communication completely. One of the ways to avoid such problems with a connection is to create an appropriate communication protocol using the appropriate modulation for the signal transmission [29][30][31][32]. Unfortunately, in many cases [33], the application of even the most sophisticated communication protocol does not solve the problems connected with the transmission of a useful signal.…”

Section: Introductionmentioning

confidence: 99%

Disturbance and Signal Filter for Power Line Communication

et al. 2019

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Today, to use home automation, intelligent home controls or remote controls in the office, electronic equipment is moving away from wireless communication in favor of Power Line Communication (PLC). In the standard PLC solutions, the corrections that result from error transmissions are based on complex digital modulation methods and algorithms for validating the transmitted data without paying attention to the causes of the errors. This article focuses on the implementation of a filtering system for interference and signals in the 120–150 kHz band (CENELEC band C), which is injected into the network by transmitters. Such a filter separates the desired signal from the interference that is occurring in the network, which can result in communication errors. Moreover, when used properly, the filter can be used as a subsystem separation element. The paper presents the requirements, design, construction, simulation and test results that were obtained under actual operating conditions. It is possible to use less complex methods for correcting errors in transmission signals and to guarantee an improvement in the transmission rate using the proposed filter system.

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Robust synchronization algorithm for broadband PLC based on Wavelet-OFDM

Cited by 2 publications

References 18 publications

Efficient Implementation of a Symbol Timing Estimator for Broadband PLC

Efficient Implementation of a Symbol Timing Estimator for Broadband PLC

Disturbance and Signal Filter for Power Line Communication

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