CN114584181A - Spread spectrum communication method and system based on power line, transmitting module and receiving module - Google Patents
Spread spectrum communication method and system based on power line, transmitting module and receiving module Download PDFInfo
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- 238000001514 detection method Methods 0.000 claims description 19
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- 238000007476 Maximum Likelihood Methods 0.000 claims description 6
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Abstract
The invention relates to the technical field of power line communication, and discloses a spread spectrum communication method and system based on a power line, a sending module and a receiving module. When the sending module sends signals, the signals to be sent are divided into a plurality of information blocks comprising index bits and modulation bits, the index bits are mapped into sending time slices, the modulation bits are mapped into spreading codes, analog signals are generated according to the sending time slices and the spreading codes and are transmitted to a power line channel, the receiving module detects the signals of the power line channel, corresponding demapping is carried out on the detected signals, the index bits and the modulation bits are recovered according to demapping results, and output signals are obtained according to the index bits and the modulation bits. The invention can solve the technical problems of larger noise interference, lower signal-to-noise ratio and low communication speed of the existing power line communication method, and realizes high-speed and reliable power line communication.
Description
Technical Field
The present invention relates to the field of power line communication technologies, and in particular, to a spread spectrum communication method and system based on a power line, a transmitting module, and a receiving module.
Background
Power line communication uses a power transmission line as a transmission medium of signals to transmit data such as telephone, telegraph, telemechanical data, and remote protection signals. Because the power line is an energy transmission line, the power line is used for data transmission, and the defects of high noise interference, low signal-to-noise ratio, low communication speed and the like are caused. In view of this drawback, it is necessary to study a new power line communication method.
Disclosure of Invention
The invention provides a spread spectrum communication method, a spread spectrum communication system, a transmitting module and a receiving module based on a power line, solves the technical problems of high noise interference, low signal to noise ratio and low communication rate of the conventional power line communication method, and can realize high-speed and reliable power line communication.
The invention provides a spread spectrum communication method based on a power line, which is applied to a sending module and comprises the following steps:
dividing a signal to be transmitted into a plurality of information blocks, wherein each information block comprises index bits and modulation bits, and the sum of the number of the index bits and the number of the modulation bits is equal to the number of bits of the corresponding information block;
mapping the index bits to transmit time slices and mapping the modulation bits to spreading codes;
and generating an analog signal according to the transmission time slice and the spreading code, and transmitting the analog signal through a power line channel.
According to a manner that can be realized by the first aspect of the present invention, the mapping the index bits to the transmission time slice includes:
mapping the index bits into sending time slices according to the following quantity relation:
in the formula, p2Is the number of index bits, N is the total number of chips transmitted, NsFor the number of mapped transmission time slices,
represents a down-rounding function, and C (·) represents a binomial coefficient.
According to a manner that can be realized by the first aspect of the present invention, the dividing the signal to be transmitted into a plurality of information blocks includes:
the number of index bits in each of the information blocks is made the same as the number of modulation bits.
According to a possible implementation manner of the first aspect of the present invention, the generating an analog signal according to the transmission time slice and the spreading code is specifically:
a burst signal or a continuous wave signal is generated based on the transmission time slice and the spreading code.
The second aspect of the present invention provides a spread spectrum communication method based on a power line, applied to a receiving module, including:
acquiring an analog signal, wherein the analog signal is a pulse signal or a continuous wave signal;
de-mapping the analog signal, obtaining index bits according to the obtained sending time slice, determining a spreading code according to the information in the sending time slice after de-indexing, and obtaining corresponding modulation bits according to the determined spreading code;
and obtaining an output signal according to the index bit and the modulation bit.
According to a manner in which the second aspect of the present invention can be realized, the acquiring an analog signal includes:
coherent detection and/or non-coherent detection is performed on a signal of the power line channel.
According to an implementable manner of the second aspect of the present invention, the demapping the analog signal includes:
and based on a maximum likelihood criterion or a maximum posterior probability criterion, the analog signal is subjected to demapping.
A third aspect of the present invention provides a transmitting module, including:
a bit allocation unit, configured to divide a signal to be transmitted into a plurality of information blocks, where each information block includes an index bit and a modulation bit, and a sum of numbers of the index bit and the modulation bit is equal to a number of bits of a corresponding information block;
a time slice index mapping unit, configured to map the index bits into sending time slices;
a spreading code mapping unit for mapping the modulation bits to spreading codes;
and a transmission signal generation unit configured to generate an analog signal from the transmission time slice and the spreading code, and transmit the analog signal through a power line channel.
According to an implementable aspect of the third aspect of the present invention, the time slice index mapping unit is specifically configured to:
mapping the index bits into sending time slices according to the following quantity relation:
in the formula, p2Is the number of index bits, N is the total number of chips transmitted, NsFor the number of mapped transmission time slices,
represents a down-rounding function, and C (·) represents a binomial coefficient.
According to an implementable manner of the third aspect of the present invention, the bit allocation unit is specifically configured to:
when a signal to be transmitted is divided into a plurality of information blocks, the number of index bits in each information block is the same as the number of modulation bits.
According to an implementable aspect of the third aspect of the present invention, the transmission signal generating unit is specifically configured to:
a burst signal or a continuous wave signal is generated based on the transmission time slice and the spreading code.
A fourth aspect of the present invention provides a receiving module, including:
the signal detection unit is used for acquiring an analog signal, wherein the analog signal is a pulse signal or a continuous wave signal;
a time slice index demapping unit, configured to demap the analog signal, and obtain an index bit according to the obtained sending time slice;
a spreading code demapping unit for determining a spreading code based on the information in the de-indexed transmission slot, and obtaining a corresponding modulation bit based on the determined spreading code;
and the signal output unit is used for obtaining an output signal according to the index bit and the modulation bit.
According to an implementable manner of the fourth aspect of the present invention, the signal detection unit is specifically configured to:
coherent detection and/or non-coherent detection is performed on a signal of the power line channel.
According to an implementable manner of the fourth aspect of the present invention, the time slice index demapping unit is specifically configured to:
and based on a maximum likelihood criterion or a maximum a posteriori probability criterion, the analog signal is subjected to demapping.
A fifth aspect of the present invention provides a power line-based spread spectrum communication system, comprising:
a sending module as described in any one of the above implementable manners;
a power line channel;
and a receiving module as described in any one of the above implementable manners.
According to the technical scheme, the invention has the following advantages:
when the sending module sends signals, the signals to be sent are divided into a plurality of information blocks comprising index bits and modulation bits, the index bits are mapped into sending time slices, the modulation bits are mapped into spreading codes, analog signals are generated according to the sending time slices and the spreading codes and are transmitted to a power line channel, the receiving module detects the signals of the power line channel, corresponding demapping is carried out on the detected signals, the index bits and the modulation bits are recovered according to demapping results, and output signals are obtained according to the index bits and the modulation bits; the invention determines the time slice position of the sending signal through the time slice index, utilizes the time slice index to carry extra information bits, is beneficial to reducing the interference generated by other nodes in the system while improving the communication rate, and is beneficial to improving the signal to noise ratio of the sending signal by mapping the modulation bits into the spreading codes, thereby effectively realizing the high-speed and reliable power line communication on the whole.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a block diagram illustrating a structure of a power line-based spread spectrum communication system according to an alternative embodiment of the present invention;
fig. 2 is a flowchart of a power line-based spread spectrum communication method applied to a transmitting module according to an alternative embodiment of the present invention;
fig. 3 is a flowchart of a power line-based spread spectrum communication method applied to a receiving module according to an alternative embodiment of the present invention.
Reference numerals:
1-a sending module; 2-power line channel; 3-a receiving module; 11-bit allocation unit; 12-a slice index mapping unit; 13-spreading code mapping unit; 14-a transmission signal generating unit; 31-a signal detection unit; 32-time slice index demapping unit; 33-spreading code demapping unit; 34-a signal output unit.
Detailed Description
The embodiment of the invention provides a spread spectrum communication method, a spread spectrum communication system, a transmitting module and a receiving module based on a power line, which are used for solving the technical problems of larger noise interference, lower signal-to-noise ratio and low communication rate of the existing power line communication method and can realize high-speed and reliable power line communication.
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a spread spectrum communication system based on a power line.
Referring to fig. 1, fig. 1 is a block diagram illustrating a structure of a spread spectrum communication system based on a power line according to an embodiment of the present invention.
The spread spectrum communication system based on the power line comprises a sending module 1, a power line channel 2 and a receiving module 3, wherein the sending module 1 is connected with the receiving module 3 through the power line channel 2.
Wherein, the sending module 1 comprises:
a bit allocation unit 11, configured to divide a signal to be transmitted into a plurality of information blocks, where each information block includes an index bit and a modulation bit, and a sum of numbers of the index bit and the modulation bit is equal to a number of bits of a corresponding information block;
a time slice index mapping unit 12, configured to map the index bits into sending time slices;
a spreading code mapping unit 13 for mapping the modulation bits to spreading codes;
a transmission signal generation unit 14 for generating an analog signal from the transmission time slice and the spreading code and transmitting the analog signal through the power line channel 2.
In a specific implementation manner, when the signal to be transmitted is divided into a plurality of information blocks, a specific length may be set, and the signal to be transmitted is segmented according to the specific length, so as to be allocated into the plurality of information blocks.
Let the number of bits contained in the information block be p and the number of modulation bits be p1The number of index bits is p2If p is equal to p1+p2And p, p1And p2Are all positive integers greater than 0. When bit allocation is performed, p may be selected from the start position of the segment information of the corresponding information block2The number of bits is used as index bits and the remaining number of bits is used as modulation bits, thereby dividing the bits in the corresponding information block into index bits and modulation bits.
As a preferred embodiment, the number of index bits in each of the information blocks is the same as the number of modulation bits.
In one implementation manner, after mapping the index bits to the transmission time slices, a relationship among the number of index bits, the number of mapped transmission time slices, and the total number of transmission time slices is as follows:
in the formula, p2Is the number of index bits, N is the total number of chips transmitted, NsFor the number of mapped transmission time slices,
represents a down-rounding function, and C (·) represents a binomial coefficient.
In an implementation manner, the transmission signal generating unit 14 is specifically configured to:
a burst signal or a continuous wave signal is generated based on the transmission time slice and the spreading code.
The receiving module 3 of the embodiment of the present invention includes:
the signal detection unit 31 is configured to acquire an analog signal, where the analog signal is a pulse signal or a continuous wave signal;
a time slice index demapping unit 32, configured to demap the analog signal, and obtain an index bit according to the obtained sending time slice;
a spreading code demapping unit 33 for determining a spreading code from the information in the post-indexing transmission chip, and obtaining a corresponding modulation bit from the determined spreading code;
a signal output unit 34, configured to obtain an output signal according to the index bit and the modulation bit.
Wherein, when performing demapping operation, the chip index demapping unit 32 and spreading code demapping unit 33 can be performed simultaneously to achieve simultaneous chip index demapping and spreading code demapping. In another embodiment, the chip index demapping unit 32 and the spreading code demapping unit 33 may be performed in sequence to achieve chip index demapping and spreading code demapping in sequence.
In an implementation manner, the signal detection unit 31 is specifically configured to:
coherent detection and/or non-coherent detection is performed on the signal of the power line channel 2.
In an implementation manner, the time slice index demapping unit 32 is specifically configured to:
and based on a maximum likelihood criterion or a maximum posterior probability criterion, the analog signal is subjected to demapping.
Based on the transmitting module 1 in the above embodiment of the present invention, the present invention further provides a spread spectrum communication method based on the power line, and the method is applied to the transmitting module 1.
As shown in fig. 2, a spread spectrum communication method based on a power line provided in an embodiment of the present invention includes:
step S1, dividing the information to be transmitted into a plurality of information blocks, each information block comprises index bits and modulation bits, and the sum of the number of the index bits and the number of the modulation bits is equal to the number of the bits of the corresponding information block;
step S2, mapping the index bits to transmit chips, and mapping the modulation bits to spreading codes;
step S3, generating an analog signal from the transmission time slice and the spreading code, and transmitting the analog signal through the power line channel 2.
In one implementation, the mapping the index bits to the transmission time slices includes:
mapping the index bits into sending time slices according to the following quantity relation:
in the formula, p2Is the number of index bits, N is the total number of chips transmitted, NsFor the number of mapped transmission time slices,
represents a down-rounding function, and C (·) represents a binomial coefficient.
In one implementation, the dividing the information to be transmitted into a plurality of information blocks includes:
the number of index bits in each of the information blocks is made the same as the number of modulation bits.
In one implementation manner, the generating an analog signal according to the transmission time slice and the spreading code includes:
a burst signal or a continuous wave signal is generated based on the transmission time slice and the spreading code.
Based on the receiving module 3 in the above embodiment of the present invention, the present invention further provides a spread spectrum communication method based on the power line, and the method is applied to the receiving module 3.
As shown in fig. 3, a power line-based spread spectrum communication method according to an embodiment of the present invention includes:
step S10, acquiring an analog signal, wherein the analog signal is a pulse signal or a continuous wave signal;
step S20, de-mapping the analog signal, obtaining index bit according to the obtained sending time slice, determining spreading code according to the information in the sending time slice after de-indexing, and obtaining corresponding modulation bit according to the determined spreading code;
and step S30, obtaining an output signal according to the index bit and the modulation bit.
In one implementation, the acquiring an analog signal includes:
coherent detection and/or non-coherent detection is performed on the signal of the power line channel 2.
In one implementation, the demapping the analog signal includes:
and based on a maximum likelihood criterion or a maximum posterior probability criterion, the analog signal is subjected to demapping.
In the above embodiment of the present invention, the slot position of the transmission signal is determined by the slot index, the slot index carries additional information bits, which is beneficial to reducing interference generated by other nodes in the system while increasing the communication rate, and the modulation bits are mapped to the spreading code, which is beneficial to increasing the signal-to-noise ratio of the transmission signal, thereby effectively realizing high-speed and reliable power line communication as a whole.
In the several embodiments provided in this application, it should be understood that the disclosed system, module, and method may be implemented in other ways. For example, the above-described module embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and there may be other divisions when actually implementing, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (15)
1. A spread spectrum communication method based on a power line is applied to a sending module and is characterized by comprising the following steps:
dividing a signal to be transmitted into a plurality of information blocks, wherein each information block comprises index bits and modulation bits, and the sum of the number of the index bits and the number of the modulation bits is equal to the number of bits of the corresponding information block;
mapping the index bits to transmit time slices and mapping the modulation bits to spreading codes;
and generating an analog signal according to the transmission time slice and the spreading code, and transmitting the analog signal through a power line channel.
2. The powerline-based spread spectrum communication method of claim 1, wherein mapping the index bits to transmit time slices comprises:
mapping the index bits into sending time slices according to the following quantity relation:
in the formula, p2Is the number of index bits, N is the total number of chips transmitted, NsFor the number of mapped transmission time slices,
represents a down-rounding function, and C (·) represents a binomial coefficient.
3. The power-line-based spread spectrum communication method according to claim 1, wherein the dividing the signal to be transmitted into a plurality of information blocks comprises:
the number of index bits in each of the information blocks is made the same as the number of modulation bits.
4. The power-line-based spread spectrum communication method according to claim 1, wherein the generating an analog signal according to the transmission time slice and the spreading code is specifically:
a burst signal or a continuous wave signal is generated based on the transmission time slice and the spreading code.
5. A spread spectrum communication method based on a power line is applied to a receiving module and is characterized by comprising the following steps:
acquiring an analog signal, wherein the analog signal is a pulse signal or a continuous wave signal;
de-mapping the analog signal, obtaining index bits according to the obtained sending time slice, determining a spreading code according to the information in the sending time slice after de-indexing, and obtaining corresponding modulation bits according to the determined spreading code;
and obtaining an output signal according to the index bit and the modulation bit.
6. The power-line-based spread spectrum communication method according to claim 5, wherein the acquiring an analog signal comprises:
coherent detection and/or non-coherent detection is performed on a signal of the power line channel.
7. The power-line based spread spectrum communication method according to claim 5, wherein said demapping said analog signal comprises:
and based on a maximum likelihood criterion or a maximum posterior probability criterion, the analog signal is subjected to demapping.
8. A transmit module, comprising:
a bit allocation unit, configured to divide a signal to be transmitted into a plurality of information blocks, where each information block includes an index bit and a modulation bit, and a sum of numbers of the index bit and the modulation bit is equal to a number of bits of a corresponding information block;
a time slice index mapping unit, configured to map the index bits into sending time slices;
a spreading code mapping unit for mapping the modulation bits to spreading codes;
and a transmission signal generation unit for generating an analog signal from the transmission time slice and the spreading code and transmitting the analog signal through a power line channel.
9. The sending module according to claim 8, wherein the time slice index mapping unit is specifically configured to:
mapping the index bits into sending time slices according to the following quantity relation:
in the formula, p2Is the number of index bits, N is the total number of chips transmitted, NsFor the number of mapped transmission time slices,
represents a floor function and C (·) represents a binomial coefficient.
10. The transmission module according to claim 8, wherein the bit allocation unit is specifically configured to:
when a signal to be transmitted is divided into a plurality of information blocks, the number of index bits in each information block is the same as the number of modulation bits.
11. The transmission module according to claim 8, wherein the transmission signal generation unit is specifically configured to:
a burst signal or a continuous wave signal is generated based on the transmission time slice and the spreading code.
12. A receiving module, comprising:
the signal detection unit is used for acquiring an analog signal, wherein the analog signal is a pulse signal or a continuous wave signal;
a time slice index demapping unit, configured to demap the analog signal, and obtain an index bit according to the obtained sending time slice;
a spreading code demapping unit for determining a spreading code based on the information in the de-indexed transmission slot, and obtaining a corresponding modulation bit based on the determined spreading code;
and the signal output unit is used for obtaining an output signal according to the index bit and the modulation bit.
13. The receiving module of claim 12, wherein the signal detection unit is specifically configured to:
coherent detection and/or non-coherent detection is performed on a signal of the power line channel.
14. The receiving module of claim 12, wherein the time slice index demapping unit is specifically configured to:
and based on a maximum likelihood criterion or a maximum posterior probability criterion, the analog signal is subjected to demapping.
15. A power line based spread spectrum communication system, comprising:
the transmitting module of any one of claims 8-11;
a power line channel;
and a receiving module according to any one of claims 12-14.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115208435A (en) * | 2022-09-15 | 2022-10-18 | 华东交通大学 | Smart power grid signal transmission method based on spatial modulation technology |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060226958A1 (en) * | 2005-03-16 | 2006-10-12 | Domosys Corporation | System and method for power line communication |
| CN107395546A (en) * | 2017-08-30 | 2017-11-24 | 重庆物奇科技有限公司 | The method for carrying out frequency domain information extension in power line carrier communication to data symbol |
| CN110391891A (en) * | 2019-07-09 | 2019-10-29 | 中国地质大学（武汉） | OFDM method and system based on two stages index modulation |
| CN111988062A (en) * | 2020-08-31 | 2020-11-24 | 厦门大学 | Index modulation based multi-sequence spread spectrum system and method |
| CN112073352A (en) * | 2020-08-28 | 2020-12-11 | 西北工业大学深圳研究院 | Index modulation-based single-carrier high-speed spread spectrum underwater acoustic communication method |
| CN112713912A (en) * | 2020-12-23 | 2021-04-27 | 北京升哲科技有限公司 | Spread spectrum index modulation, demodulation communication method, transmitter, receiver and storage medium |
| CN113938162A (en) * | 2021-10-13 | 2022-01-14 | 广东电网有限责任公司江门供电局 | Index time division multiple access method and device based on power transmission line |
-
2022
- 2022-03-01 CN CN202210199228.2A patent/CN114584181B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060226958A1 (en) * | 2005-03-16 | 2006-10-12 | Domosys Corporation | System and method for power line communication |
| CN107395546A (en) * | 2017-08-30 | 2017-11-24 | 重庆物奇科技有限公司 | The method for carrying out frequency domain information extension in power line carrier communication to data symbol |
| CN110391891A (en) * | 2019-07-09 | 2019-10-29 | 中国地质大学（武汉） | OFDM method and system based on two stages index modulation |
| CN112073352A (en) * | 2020-08-28 | 2020-12-11 | 西北工业大学深圳研究院 | Index modulation-based single-carrier high-speed spread spectrum underwater acoustic communication method |
| CN111988062A (en) * | 2020-08-31 | 2020-11-24 | 厦门大学 | Index modulation based multi-sequence spread spectrum system and method |
| CN112713912A (en) * | 2020-12-23 | 2021-04-27 | 北京升哲科技有限公司 | Spread spectrum index modulation, demodulation communication method, transmitter, receiver and storage medium |
| CN113938162A (en) * | 2021-10-13 | 2022-01-14 | 广东电网有限责任公司江门供电局 | Index time division multiple access method and device based on power transmission line |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115208435A (en) * | 2022-09-15 | 2022-10-18 | 华东交通大学 | Smart power grid signal transmission method based on spatial modulation technology |
| CN115208435B (en) * | 2022-09-15 | 2022-12-09 | 华东交通大学 | Smart power grid signal transmission method based on spatial modulation technology |
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