WO2013056520A1 - Procédé de communication par courants porteurs en ligne basé sur la technologie cognitive des canaux - Google Patents

Procédé de communication par courants porteurs en ligne basé sur la technologie cognitive des canaux Download PDF

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Publication number
WO2013056520A1
WO2013056520A1 PCT/CN2012/070313 CN2012070313W WO2013056520A1 WO 2013056520 A1 WO2013056520 A1 WO 2013056520A1 CN 2012070313 W CN2012070313 W CN 2012070313W WO 2013056520 A1 WO2013056520 A1 WO 2013056520A1
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Prior art keywords
power line
channel
communication
code
communication method
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PCT/CN2012/070313
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English (en)
Chinese (zh)
Inventor
陆超
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上海炜呈智能电力科技有限责任公司
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Publication of WO2013056520A1 publication Critical patent/WO2013056520A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
    • H04B2203/5416—Methods of transmitting or receiving signals via power distribution lines by adding signals to the wave form of the power source

Definitions

  • Power line carrier communication technology is a communication method for transmitting data information by using a power line as a communication medium, and generally includes: high-voltage power line carrier communication using a high-voltage transmission line of a voltage level of 35 kV or higher as a communication medium; with a voltage level of 10 kV Medium voltage power line carrier communication using medium voltage transmission line as communication medium; and low voltage power line carrier communication using 380V or 220V low voltage transmission line as communication medium.
  • the traditional power line carrier communication mainly uses a high-voltage transmission line as a transmission channel of a high-frequency signal, and is limited to transmitting a remote control signal, etc., and has a narrow application range and a low transmission rate.
  • power carrier communication is turning to low-voltage distribution network for carrier communication, which makes the development and application of low-voltage power line carrier communication appear in the ascendant situation.
  • the channel conditions that power line carrier communication needs to face have the following characteristics: strong time-varying, and exhibiting a cyclic smoothing characteristic that varies with the power frequency signal; large channel attenuation; strong intensity of the interference signal and the noise signal, The signal to noise ratio and the signal are relatively poor.
  • Conventional power line carrier communication uses spread spectrum, narrowband modulation or phase modulation techniques, with fixed carrier frequency and communication bandwidth, and fixed communication time. In general, conventional power line carrier communication uses one or two fixed carrier frequencies and communication bandwidths to transmit and/or receive signals at all times in a fixed modulation method.
  • An object of the present invention is to provide a power line communication method based on channel cognition technology, which is used to solve the problems of poor communication reliability, spectrum utilization, and low power consumption utilization of existing power line carrier communication.
  • the present invention provides a power line communication method based on channel cognition technology, comprising: recognizing a power line channel and obtaining a channel model; determining a configuration parameter of the communication device according to the obtained channel model; and configuring the device according to the determined configuration parameter a communication transceiver in the communication device; performing data transmission by the communication device having the configuration parameters configured.
  • recognizing the power line channel and obtaining the channel model comprises: performing open-loop cognitive and/or closed-loop recognition on the power line channel to obtain a channel model.
  • performing open-loop awareness of the power line channel includes: measuring, by the sender or the receiver of the communication, frequency domain characteristics and time domain characteristics of the channel separately; the measuring includes: time domain of interference introduced in the channel Estimating characteristics and frequency domain characteristics; the interference includes narrowband interference or wideband interference; estimating time domain characteristics and frequency domain characteristics of noise introduced in the channel; the noise includes burst noise.
  • the closed loop awareness of the power line channel comprises: jointly measuring the frequency domain characteristics and the time domain characteristics of the channel by the sender and the receiver of the communication; the measuring comprises: performing the attenuation characteristic and the time variation of the channel Domain and frequency domain estimates.
  • determining configuration parameters of the communication device according to the channel model includes: determining configuration parameters of the communication device according to the obtained channel model and predetermined determination criteria.
  • the determining criterion includes a lowest bit error rate, a lowest packet loss rate, a signal to noise ratio threshold, or a signal to interference ratio threshold.
  • the configuration parameters include: a communication system, a frequency and bandwidth occupied by the signal, a scrambling code type and a modulation ratio parameter, a modulation mode, a type of the error correction code, a code rate, an interleaving manner, a generation matrix, and a network collaboration and organization
  • a communication system is one or more of narrowband modulation, spread spectrum, and orthogonal frequency division multiplexing.
  • the scrambling code type includes a long code or a short code.
  • the type of the error correction code includes a BCH code, a cyclic code, a convolutional code, an RS coding, a Turbo coding, and a low Density parity check encodes one or more of LDPCs.
  • the method for power line communication based on channel cognition technology of the present invention is capable of recognizing a current channel and obtaining a channel model; learning and analyzing according to the obtained channel model, selecting a most suitable communication mode for the power line communication device
  • the configuration parameters of the communication transceiver are configured to operate the entire power line communication system in an optimum state, thereby improving the reliability, stability, and communication rate of the power line communication, and at the same time improving spectrum utilization and power consumption utilization.
  • FIG. 1 is a schematic flow chart of a power line communication method based on channel cognition technology in an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a power line communication method based on a channel cognition technology for identifying a power line channel and generating configuration parameters in an embodiment according to the present invention.
  • 3 is a schematic diagram of the configuration of the frequency response of the communication transceiver.
  • 4 is a structural block diagram of a power line communication device to which a power line communication method based on a channel cognitive technology is applied in one embodiment.
  • FIG. 1 is a flow chart showing the power line communication method based on the channel cognition technology of the present invention in one embodiment. As shown in FIG. 1, the power line communication method includes:
  • Step S101 Cognizing a power line channel and obtaining a channel model
  • Step S103 Determine, according to the obtained channel model, configuration parameters of the communication device.
  • Step S105 configuring a communication transceiver in the communication device according to the determined configuration parameter
  • Step S107 Perform data transmission by using the communication device configured with the configuration parameter.
  • Step S101 Cognizing the power line channel and obtaining a channel model.
  • the multipath effect and attenuation characteristics of the power line channel are not fixed, not only with the application.
  • the scene varies from scene to scene and has a strong time-varying nature. Therefore, it is necessary to recognize the power line channel and obtain its channel characteristics.
  • the knowledge of the power line channel and the resulting channel model can be achieved by open loop cognition and/or closed loop recognition.
  • Open-loop awareness of the power line channel includes: measuring the frequency domain characteristics and time domain characteristics of the channel by the sender or receiver of the communication.
  • the measurements include, but are not limited to, estimating time domain patterns and frequency domain characteristics of interference introduced in the channel (e.g., narrowband interference or wideband interference), and time domain characteristics of noise (including burst noise) introduced in the channel. Estimated with frequency domain characteristics. Since the measurement of the frequency domain characteristics and the time domain characteristics by a communication terminal (sender or receiver) unidirectional channel is a prior art well known to those skilled in the art, it will not be described.
  • Closed-loop awareness of the power line channel includes: The sender and receiver of the communication jointly measure the frequency domain characteristics and time domain characteristics of the channel.
  • a specific communication signal or a communication signal having a specific mode is transmitted by the sender of the communication, and the communication signal is received by the receiver of the communication after passing through the power line channel to be tested, and the receiver according to the received communication signal And a communication signal sent by the sender, analyzing the characteristics of the power line channel.
  • the measurements include, but are not limited to: time and frequency domain estimation of the attenuation characteristics and time-varying of the channel. Since the frequency domain characteristics and the time domain characteristics of the channel are jointly measured by the sender and the receiver, the prior art is well known to those skilled in the art, and therefore will not be described.
  • the power line channel can be measured to obtain a basic model of the power line channel characteristics.
  • the channel characteristics include time domain and frequency domain distribution of interference signals such as channel (e.g., narrowband interference signals and burst noise), amplitude-frequency response of the channel, and time-varying characteristics thereof.
  • Step S103 Determine configuration parameters of the communication device according to the obtained channel model.
  • determining the configuration parameters of the communication device according to the channel model comprises: determining configuration parameters adopted by the communication device in the current communication according to the obtained channel model and predetermined determination criteria.
  • the determining criterion includes the lowest bit error rate or the lowest packet loss rate, but is not limited thereto. In other embodiments, the determining criterion may also be other communication indicators. For example, in one embodiment, when the signal to interference ratio due to narrowband interference is within a certain range (e.g., the signal to interference ratio is less than 0 dB), the narrowband interference should be avoided when selecting an available communication band.
  • FIG. 2 is a schematic diagram showing the power line communication method based on the channel cognition technology provided by the present invention in an embodiment to recognize the power line channel and generate configuration parameters.
  • the time and frequency resources that can be used for communication can be represented by a band-slotted grid map.
  • there are five frequency bands that can be used for communication numbered 0, 1, 2, 3, and 4; there are six time slots that can be used for communication, numbered 0, 1, and 2 respectively. , 3, 4, 5.
  • the time-frequency resources used for communication can be determined to be available frequency bands 0, 2, 3 according to predetermined criteria, and punctured at available time slots 3.
  • Step S105 configuring a communication transceiver in the communication device according to the determined configuration parameter.
  • step S103 according to the configuration parameters determined in step S103, the configuration parameters of the communication transceiver in the communication device are changed accordingly, so that the communication device has a corresponding function.
  • the configuration parameters include: communication system, frequency and bandwidth occupied by the signal, scrambling code type and modulation ratio parameter, modulation The manner, the type of error correcting code, the code rate, the interleaving pattern, the generation matrix, the network cooperation and organization form, the parameters of the digital to analog and analog to digital converter, and one or more of the frequency response of the communication transceiver.
  • the communication transceiver can be configured as one or more of narrowband modulation (such as binary frequency shift keying BFSK, etc.), spread spectrum (such as direct sequence spread spectrum DSSS, etc.), or orthogonal frequency division multiplexing (OFDM). kind.
  • narrowband modulation such as binary frequency shift keying BFSK, etc.
  • spread spectrum such as direct sequence spread spectrum DSSS, etc.
  • OFDM orthogonal frequency division multiplexing
  • the frequency and bandwidth occupied by the signal including the bandwidth occupied by the communication signal and the carrier frequency (communication signal center frequency).
  • Scrambling code type and modulation ratio parameter The scrambling code type means that the communication transceiver can be configured to use a long code or a short code as the scrambling code, and the generator polynomial of the scrambling code can be specified; the modulation ratio parameter refers to the scrambling code chip rate. The ratio to the symbol rate.
  • the modulation method of the communication signal can be configured as one or more of modulation methods such as amplitude modulation ASK, frequency modulation FSK, and quadrature amplitude modulation QAM.
  • the type of error correcting code means that the error correcting code used by the communication transceiver can be configured as BCH code, cyclic code, convolutional code, RS code, Turbo code or Low density parity check encoding one or more of encoding modes such as LDPC.
  • the code rate means that the code rate of the channel coding used by the communication transceiver can be configured to one or more of 1/3, 1/2, 3/4, and the like.
  • Network collaboration and organization Includes parameters such as the maximum order of the repeaters used for communication.
  • Digital-to-analog converters used in communication transceivers, DACs, and analog-to-digital converters. ADC accuracy, dynamic range, and sampling rate.
  • Frequency response of the communication transceiver The frequency response of the communication transceiver (including the amplitude-frequency response and the phase-frequency response) can be configured, such as the bandwidth, attenuation, and center frequency of the filter of the communication transceiver.
  • the frequency response of the communication transceiver includes parameters of the notch filter for narrowband interference: For narrowband interference in the frequency domain, the communication transceiver can be eliminated using a notch filter.
  • the notch frequency of the notch filter and the order of the notch filter can be configured to different values.
  • FIG. 3 shows a schematic diagram of the configuration of the frequency response of the communication transceiver.
  • the frequency response of the configurable power line communication transceiver can be configured in two modes: a narrowband mode 301 with a corner frequency of fl and a notch filter with a corner frequency of f2 and a notch frequency of fn Broadband mode 302.
  • the wideband mode 302 corresponds to the channel condition shown in Fig. 2
  • the notch frequency fn corresponds to the narrowband interference 201 at the available frequency band 1 in Fig. 2.
  • step S105 the configuration parameters of the communication transceiver in the communication device are configured.
  • Step S107 Perform data transmission by using the communication device configured with the configuration parameter.
  • step S107 the communication device can be used for data transmission.
  • the communication method adopted by the communication device at this time is obtained based on the current power line channel cognitive learning, so the method of the present invention can provide better communication stability and communication rate.
  • the power line communication method based on the channel cognition technology of the present invention can recognize the current channel and obtain a channel model; learn and analyze according to the obtained channel model, and select the most suitable communication method for the power line
  • the configuration parameters of the communication transceiver in the communication device are configured to make the entire power line communication system work in the most suitable state, thereby improving the reliability, stability and communication rate of the power line communication, and at the same time improving spectrum utilization and power consumption utilization.
  • FIG. 4 a structural block diagram of a power line communication device applied in one embodiment of a power line communication method based on channel cognitive technology.
  • the power line communication device includes: a parameter configurable power line communication transceiver 401, a channel awareness module 403, and a cognitive control module 405.
  • a parameter configurable power line communication transceiver 401 is a parameter configurable power line communication transceiver 401.
  • the configuration parameters include: communication standard, frequency and bandwidth occupied by the signal, scrambling code type and modulation ratio parameter, modulation mode, type of error correction code, code rate, interleaving mode, generation matrix, network cooperation and organization form, digital mode And one or more of the parameters of the analog to digital converter and the frequency response of the communication transceiver.
  • the communication transceiver can be configured as one or more of narrowband modulation (such as binary frequency shift keying BFSK, etc.), spread spectrum (such as direct sequence spread spectrum DSSS, etc.), or orthogonal frequency division multiplexing (OFDM). kind.
  • narrowband modulation such as binary frequency shift keying BFSK, etc.
  • spread spectrum such as direct sequence spread spectrum DSSS, etc.
  • OFDM orthogonal frequency division multiplexing
  • the frequency and bandwidth occupied by the signal including the bandwidth occupied by the communication signal and the carrier frequency (communication signal center frequency).
  • Scrambling code type and modulation ratio parameter The scrambling code type means that the communication transceiver can be configured to use a long code or a short code as the scrambling code, and the generator polynomial of the scrambling code can be specified; the modulation ratio parameter refers to the scrambling code chip rate. The ratio to the symbol rate.
  • the modulation method of the communication signal can be configured as one or more of modulation methods such as amplitude modulation ASK, frequency modulation FSK, and quadrature amplitude modulation QAM.
  • the type of error correcting code means that the error correcting code used by the communication transceiver can be configured as BCH code, cyclic code, convolutional code, RS code, Turbo code or Low density parity check encoding one or more of encoding modes such as LDPC.
  • the code rate means that the code rate of the channel coding used by the communication transceiver can be configured to one or more of 1/3, 1/2, 3/4, and the like.
  • Network collaboration and organization Includes parameters such as the maximum order of the repeaters used for communication.
  • Parameters of the digital-to-analog and analog-to-digital converter The accuracy, dynamic range, and sampling rate of the digital-to-analog converter DAC and analog-to-digital converter ADC used in the communication transceiver.
  • Frequency response of the communication transceiver The frequency response of the communication transceiver (including the amplitude frequency response and the phase frequency response) can be configured, such as the bandwidth, attenuation, and wave parameters of the filter of the communication transceiver can be configured.
  • the frequency response of the communication transceiver includes parameters of the notch filter for narrowband interference: For narrowband interference in the frequency domain, the communication transceiver can be eliminated using a notch filter.
  • the notch frequency of the notch filter and the order of the notch filter can be configured to different values.
  • the channel awareness module 403 is configured to recognize the power line channel and obtain a channel model.
  • the multipath effect and attenuation characteristics of the power line channel are not fixed, not only with the application.
  • the scene varies from scene to scene and has a strong time-varying nature. Therefore, it is necessary to recognize the power line channel to obtain its channel model.
  • the knowledge of the power line channel and the resulting channel model can be achieved by open loop cognition and/or closed loop recognition.
  • the open-loop awareness of the power line channel includes: measuring the frequency domain characteristics and time domain characteristics of the channel by the sender or receiver of the communication.
  • the measurements include, but are not limited to, estimating time domain patterns and frequency domain characteristics of interference introduced in the channel (e.g., narrowband interference or wideband interference), and time domain characteristics of noise (including burst noise) introduced in the channel. Estimated with frequency domain characteristics. Since the measurement of the frequency domain characteristics and the time domain characteristics by a communication terminal (sender or receiver) unidirectional channel is known in the art, it will not be described.
  • Closed-loop awareness of the power line channel includes: The sender and receiver of the communication jointly measure the frequency domain characteristics and time domain characteristics of the channel. Specifically, a specific communication signal or a communication signal having a specific mode is transmitted by the sender of the communication, and the communication signal is received by the receiver of the communication after passing through the power line channel to be tested, and the receiver according to the received communication signal And a communication signal sent by the sender, analyzing the characteristics of the power line channel.
  • the measurements include, but are not limited to, time and frequency domain estimation of the attenuation characteristics and time-varying of the channel. Since the frequency domain characteristics and the time domain characteristics of the channel are jointly measured by the sender and the receiver, the prior art is well known to those skilled in the art, and therefore will not be described.
  • the power line channel can be measured to obtain a basic model of the power line channel characteristics.
  • the channel characteristics include time domain and frequency domain distribution of interference signals such as channel (e.g., narrowband interference signals and burst noise), amplitude-frequency response of the channel, and time-varying characteristics thereof.
  • the cognitive control module 405 is configured to learn according to the channel model obtained by the channel cognitive module 403 to determine and configure configuration parameters of the communication transceiver in the communication device.
  • Determining configuration parameters of the communication device according to the channel model includes: determining configuration parameters adopted by the communication device in the current communication according to the obtained channel model and predetermined determination criteria.
  • the criterion includes a bit error rate Minimum, lowest packet loss rate or signal to noise ratio (signal to interference ratio) threshold.
  • the power line communication device based on the channel cognition technology of the present invention can use the channel cognition module to recognize the current channel and obtain a channel model; and the cognitive control module is configured to obtain according to the channel cognition module
  • the channel model is learned and analyzed to determine and configure the configuration parameters of the communication transceiver in the communication device, so that the entire power line communication system works in the most appropriate state, thereby improving the reliability, stability and communication rate of the power line communication. At the same time, it can improve spectrum utilization and power consumption.
  • the communication device using the above-described channel cognitive technology-based power line communication method can also constitute a communication system.
  • the communication system configures an uplink communication transceiver and a downlink communication transceiver by performing an uplink and downlink communication manner that best matches the current channel quality by identifying the current power line channel, so that the entire communication system works at the most Excellent state.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

La présente invention se rapporte à un procédé de communication par courants porteurs en ligne basé sur la technologie cognitive des canaux. Le procédé selon l'invention consiste : à exécuter une opération de cognition sur un canal de communication par courants porteurs en ligne et à obtenir un modèle de canal ; à déterminer des paramètres de configuration d'un dispositif de communication, sur la base du modèle de canal obtenu ; à configurer un appareil émetteur-récepteur de communication dans le dispositif de communication, sur la base des paramètres de configuration déterminés ; et à exécuter une transmission de données au moyen du dispositif de communication configuré sur la base des paramètres de configuration. Par comparaison avec l'état de la technique, la présente invention est apte à configurer les paramètres de configuration de l'appareil émetteur-récepteur de communication dans le dispositif de communication par courants porteurs en ligne. De cette manière, le système de communication par courants porteurs en ligne peut globalement fonctionner dans un état nettement plus approprié. Par voie de conséquence, d'une part, la fiabilité, la stabilité et le débit de transmission des communications par courants porteurs en ligne se trouvent considérablement améliorés ; et, d'autre part, l'utilisation du spectre de fréquences et le taux d'utilisation de la consommation de puissance se font de façon plus judicieuse.
PCT/CN2012/070313 2011-10-19 2012-01-13 Procédé de communication par courants porteurs en ligne basé sur la technologie cognitive des canaux WO2013056520A1 (fr)

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CN201110319047.0A CN102355313B (zh) 2011-10-19 2011-10-19 基于信道认知技术的电力线通信方法
CN201110319047.0 2011-10-19

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2871793A1 (fr) * 2013-11-12 2015-05-13 Alcatel Lucent Dispositif et procédé de diagnostic d'un réseau de communications de réseau électrique
WO2017000708A1 (fr) * 2015-06-29 2017-01-05 全球能源互联网研究院 Procédé de reconnaissance de fréquence de ligne de puissance à bandes croisées basé sur une granularité fréquentielle fine
US10594365B1 (en) 2018-11-16 2020-03-17 Wiwynn Corporation Server device and power management method

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102694608B (zh) * 2012-05-22 2014-06-11 广西师范大学 一种无线移动通信系统收发设备传输技术优选方法和装置
CN102904612B (zh) * 2012-10-17 2014-10-29 北京爱朗格瑞科技有限公司 基于电力线的全双工通信方法和装置
CN103297091B (zh) * 2013-05-10 2015-03-04 中国科学院微电子研究所 一种电力线通信发射系统及接收系统
CN103457636B (zh) * 2013-08-09 2015-05-27 国家电网公司 基于频率认知技术的跨频带电力线载波通信方法及系统
CN106533505A (zh) * 2015-09-11 2017-03-22 国网天津市电力公司 一种固定收发场地的电力载波消除谐波噪声干扰的方法
CN106533504A (zh) * 2015-09-11 2017-03-22 国网天津市电力公司 带标准源的固定收发场地电力载波消除谐波噪声干扰方法
CN106936541B (zh) * 2015-12-30 2019-12-17 上海东软载波微电子有限公司 Rs编码加字节交织方法及系统
CN107682047B (zh) * 2017-10-12 2021-06-25 国网湖南省电力公司 一种信道感知的中压电力线通信数据传输方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100197317A1 (en) * 2009-02-01 2010-08-05 Qualcomm Incorporated Multichannel dynamic frequency selection
CN101814935A (zh) * 2009-02-25 2010-08-25 谢炜 电力线通信系统中的自适应调制器
CN102075950A (zh) * 2011-01-07 2011-05-25 哈尔滨工程大学 Mimo-ofdm认知无线电通信方法
CN102118183A (zh) * 2009-12-31 2011-07-06 深圳先进技术研究院 电力载波通信方法及装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100571055C (zh) * 2004-07-02 2009-12-16 清华大学 一种配电网多用户通信方法
EP1784927B1 (fr) * 2004-08-24 2017-08-09 Panasonic Corporation Procédé et appareil pour communication par ligne électrique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100197317A1 (en) * 2009-02-01 2010-08-05 Qualcomm Incorporated Multichannel dynamic frequency selection
CN101814935A (zh) * 2009-02-25 2010-08-25 谢炜 电力线通信系统中的自适应调制器
CN102118183A (zh) * 2009-12-31 2011-07-06 深圳先进技术研究院 电力载波通信方法及装置
CN102075950A (zh) * 2011-01-07 2011-05-25 哈尔滨工程大学 Mimo-ofdm认知无线电通信方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2871793A1 (fr) * 2013-11-12 2015-05-13 Alcatel Lucent Dispositif et procédé de diagnostic d'un réseau de communications de réseau électrique
WO2017000708A1 (fr) * 2015-06-29 2017-01-05 全球能源互联网研究院 Procédé de reconnaissance de fréquence de ligne de puissance à bandes croisées basé sur une granularité fréquentielle fine
US10594365B1 (en) 2018-11-16 2020-03-17 Wiwynn Corporation Server device and power management method
TWI693512B (zh) * 2018-11-16 2020-05-11 緯穎科技服務股份有限公司 伺服器裝置及其電源管理方法

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