CN106059713B - A method of first kind tapping channel is constructed by BSBC - Google Patents
A method of first kind tapping channel is constructed by BSBC Download PDFInfo
- Publication number
- CN106059713B CN106059713B CN201610586991.5A CN201610586991A CN106059713B CN 106059713 B CN106059713 B CN 106059713B CN 201610586991 A CN201610586991 A CN 201610586991A CN 106059713 B CN106059713 B CN 106059713B
- Authority
- CN
- China
- Prior art keywords
- channel
- legitimate
- listener
- information
- sequence
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
- H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
- H04L1/0618—Space-time coding
- H04L1/0675—Space-time coding characterised by the signaling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03178—Arrangements involving sequence estimation techniques
- H04L25/03312—Arrangements specific to the provision of output signals
- H04L25/03318—Provision of soft decisions
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/30—Network architectures or network communication protocols for network security for supporting lawful interception, monitoring or retaining of communications or communication related information
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Technology Law (AREA)
- Computer Hardware Design (AREA)
- Artificial Intelligence (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Quality & Reliability (AREA)
- Error Detection And Correction (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
A method of first kind tapping channel being constructed by BSBC, legitimate receiver sends feedback information to legitimate sender by Binary Symmetric broadcast channel；Legitimate sender and listener-in respectively receive the feedback information of the legitimate receiver by noise jamming, and legitimate sender is handled encoded information to be sent according to the feedback information received, are then sent out by the common signal channel of zero defect；Legitimate receiver passes through bit log-likelihood ratio information needed for ad hoc fashion extracts Soft decision decoding first, then the information received is decoded by Soft decision decoding mode, reduce the wrong bitrate of main channel, improve channel reliability, and then expand quality difference between main channel and tapping channel, improve the safe capacity of first kind tapping channel；The information that listener-in's passive wiretapping legitimate sender is sent, and the information received is decoded by way of Soft decision decoding.The present invention realizes that difficulty is low, and channel safety capacity is high, good communication quality.
Description
Technical field
It is specifically a kind of that first kind tapping channel is constructed by BSBC the invention belongs to technical field of communication safety and comprising
Method.
Background technique
With the fast development of information technology, personal information and business information transmission to the dependence of cordless communication network just
It is remarkably reinforced, thus the attention rate of derivative communication system inherently safe problem is also improving rapidly.Based on open system interconnection 7
Layer protocol, the Information Security Mechanism of legacy communications system be built upon network layer and its more than each layer, core technology is key
Encryption mechanism, with the proviso that unimpeded and error-free transmission link has been provided in the physical layer of agreement bottom, physical layer information is asked safely
Topic does not cause enough attention.However, due to the opening and versatility of electromagnetic signal transmission environment, in the effective of transmission power
In coverage area, any third party for possessing suitable equipment can quietly access network and steal other people information, to wireless communication
Privacy and safety bring great threat.With the diversification of the high speed and wireless traffic of wireless data transmission, especially
In the 5th Generation Mobile Communication System scene that there is " height conversion, high density and high speed " to require, information stealth bring
Harm and loss are difficult to estimate.Therefore, compared to the cable network of physical transmission medium relative closure, the object of cordless communication network
It is more serious to manage layer information security issue, it is studied extremely urgent.
Wyner proposes WTC-I model 1975, and in WTC-I model, legitimate receiver and listener-in receive hair simultaneously
The data that the side of sending is sent out.It is inferior to main channel in listener-in's channel quality, i.e. the channel of legitimate correspondence both sides will have in quality
Under advantageous assumed condition, sharing key is not depended on, by reasonable under the premise of transmission rate is no more than safe capacity
Perfect confidential corespondence can be realized in secure coding schemes.But listener-in's channel quality is inferior to the assumed condition of main channel in reality
It is difficult to ensure that, for example listener-in is close apart from private information sender, and receiving antenna power is high, then can guarantee easily in border
It receives the bit error rate and is lower than legitimate receiver.The model also demonstrates the realizability of unconditional security communication, does not suggest that
How WTC and reasonable secure coding schemes are constructed.As it can be seen that building WTC and safe coding are the two of unconditional security communication
Big key technology.
Currently, based on the single antenna communications system building research of WTC-I and few, as domestic first single antenna WTC-I
The invention of model, Chinese patent " CN200910058796.5 " disclosed " constructing wire-tapI by feedback and with LDPC code " is special
What is proposed in benefit is received significant attention based on the WTC-I model interactively communicated, realizes that process has two big distinguishing features: (1)
The noise of main channel is transferred on listener-in's channel in interactive process by the design of reasonable algorithm, fundamentally establishes master
Channel quality advantage；(2) Hard decision decoding algorithm threshold effect is utilized, realizes improvement optimization and the listener-in's letter of main channel quality
Road quality degradation is kept, thus the channel quality advantage that " amplification " has built up.But the program still has some shortcomings:
(1) legitimate sender is needed by the transmission for having the common signal channel made an uproar to carry out information, it is therefore necessary to by reducing information transmission speed
Rate simultaneously combines the technological means such as strong error correcting code to make common signal channel completely reliable, adds additional the complexity of system realization
Degree；(2) the weaker error correcting capability of Hard decision decoding algorithm causes main channel reliability not high, makes to the channel matter having built up
The expansion effect of amount advantage is not obvious, also will cause Subsequent secure and the maximum safe transmission rate-limit that reliably encodes not
It is high.
Summary of the invention
In order to solve deficiency in the prior art, the present invention provides one kind under Binary Symmetric broadcast channel, and utilization is soft
Judgement decoding makes main channel safe capacity and the higher secure channels model of reliability to substitute Hard decision decoding.
A method of first kind tapping channel being constructed by BSBC, legitimate receiver passes through Binary Symmetric broadcast channel
Feedback information is sent to legitimate sender；Legitimate sender and listener-in respectively receive by noise jamming legitimate receiver it is anti-
Feedforward information, legitimate sender are handled encoded information to be sent according to the feedback information received, then pass through nothing
The common signal channel of mistake is sent out, and the auxiliary channel without safety guarantee is selected as to the common signal channel of zero defect, is reduced system and is realized
Complexity；Bit log-likelihood ratio information needed for legitimate receiver extracts Soft decision decoding first, then by soft
Judgement decoded mode decodes the information received, reduces the wrong bitrate of main channel, improves channel reliability, Jin Erkuo
Quality difference between big main channel and tapping channel, improves the safe capacity of first kind tapping channel；Listener-in's passive wiretapping closes
The information that method sender sends, and the information received is decoded by way of Soft decision decoding.
Concrete implementation step of the present invention are as follows:
Step 1: legitimate receiver is randomly generated, t (t >=1) is a mutually indepedent and each N long binary system sequence more general than top grade
ColumnAnd send it by Binary Symmetric broadcast channel, legitimate sender and listener-in receive respectively
To t sequenceWithWherein ej=[eJ, i] and eaj=[eaJ, i] it is that Binary Symmetric is wide
The error vector of channel is broadcast,Indicate 2 He of mould, and 1≤i≤N；
Step 2: legitimate sender generates t-1 mutually indepedent and each N long binary sequence cs more general than top grade at randomj
[cJ, i] spare, wherein 1≤j≤t-1,1≤i≤N；
Step 3: legitimate sender is secret to sent K long using binary (N, the K) linear block codes for approaching shannon limit
Information x obtains N long message sequence c=[c after being encodedi], 1≤i≤N；By c and { cj, 1≤j≤t-1 } and generate t-th of N long
Sequence ct:
Step 4: by t-1 sequence in step 2 and the c in step 3tTotal t N long Sequence composition set { cj, 1≤j
≤ t }, by { cjIn element and setMiddle element is gathered with after according to subscript one-to-one correspondence progress mould 2
{y′j, 1≤j≤t }, i.e.,Legitimate sender is by { y 'jSent by the common signal channel of zero defect；
Step 5: the information for assuming that listener-in transmits common signal channel is also passive wiretapping, without usurping to it
Other operations such as change, then legitimate receiver and listener-in can free of errors receive { y 'j, legitimate receiver is by oneself in step
The zero defect arrangement set possessed in rapid oneWith { y 'jIn sequence carry out whole 2 He of mould, i.e., by each position
It sets corresponding element and carries out 2 He of mould, obtain N long sequence1≤i≤N, listener-in then connect oneself in step 1
The arrangement set by noise jamming receivedWith { y 'jIn sequence carry out whole mould 2 and obtain N long sequence1≤i≤N, i.e.,
Step 6: firstly, for 1≤i≤N, 1≤j≤t, legitimate receiver and listener-in respectively by following formula (1) and
Formula (2)
It calculatesWithBit error probabilityWithWherein αJ, iFor channel error vector ejI-th of bit eJ, i
For the probability of " 1 ", βJ, iFor channel error vector eajI-th of bit eaJ, iFor the probability of " 1 ", secondly, for 1≤i≤N,
Legitimate receiver and listener-in are respectively by following formula (3) and formula (4)
Calculate the bit log-likelihood ratio value about c；
Step 7: the bit log-likelihood ratio value acquired using formula (3) and formula (4), legitimate receiver and listener-in's difference
K long secret information is recovered after being decoded using soft-decision algorithm respectivelyWith
As a preferred embodiment, [N, the K] linear block codes of binary described in step 3 is low density parity check code.
As a preferred embodiment, soft-decision algorithm described in step 7 is that low-density is odd under Binary Symmetric broadcast channel
The belief propagation algorithm of even parity check code.
The utility model has the advantages that the present invention selects the common signal channel of zero defect as auxiliary between legitimate sender and legitimate receiver
Channel is helped, the complexity of system realization can be greatly reduced；Based on ad hoc fashion extract bit log-likelihood ratio information into
And the reliability of main channel can be significantly improved using the construction method of Soft decision decoding, and the bit error probability of listener-in is being translated
Code front and back is held essentially constant, therefore the channel quality advantage of legitimate correspondence is greatly enhanced, to increase entire steal
Listen the safe capacity of channel model, moreover it is possible to the upper limit of maximum safe transmission rate for improving Subsequent secure and reliably encoding.
Detailed description of the invention
Fig. 1 is physical layer unconditional security traffic model schematic diagram；
Fig. 2 is based on WTC-I (IWTC-I) model schematic interactively communicated；
Fig. 3 is simulation result diagram.
Specific embodiment
A specific embodiment of the invention are as follows:
A method of first kind tapping channel being constructed by BSBC, legitimate receiver (being denoted as Bob) passes through binary system pair
Broadcast channel (BSBC) is claimed to send feedback information to legitimate sender (being denoted as Alice)；Legitimate sender and listener-in (are denoted as
Eve the feedback information of the legitimate receiver by noise jamming) is respectively received, legitimate sender is according to the feedback information pair received
Encoded information to be sent is handled, and is then sent out by the common signal channel of zero defect, and the auxiliary of safety guarantee will be not necessarily to
Channel is selected as the common signal channel of zero defect, reduces the complexity that system is realized；Legitimate receiver is mentioned by ad hoc fashion first
Then bit log-likelihood ratio information needed for taking out Soft decision decoding carries out the information received by Soft decision decoding mode
Decoding reduces the wrong bitrate of main channel, improves channel reliability, and then expands of poor quality between main channel and tapping channel
It is different, improve the safe capacity of first kind tapping channel；The information that listener-in's passive wiretapping legitimate sender is sent, and sentenced by soft
The mode certainly decoded decodes the information received.
Specific implementation steps are as follows:
Step 1: Bob is randomly generated, t (t >=1) is a mutually indepedent and each N long binary sequence more general than top grade(1
≤ j≤t), and it is sent by BSBC, Alice and Eve receive t sequence respectivelyWithWherein ej=[eJ, i] and eaj=[eaJ, i] be BSBC error vector,Indicate 2 He of mould, and 1
≤i≤N；
Step 2: Alice generates t-1 mutually indepedent and each N long binary sequence cs more general than top grade at randomj=
[cJ, i] spare, wherein 1≤j≤t-1,1≤i≤N；
Step 3: Alice utilizes binary (N, the K) linear block codes for approaching shannon limit to sent K long secret information x
N long message sequence c=[c is obtained after being encodedi], 1≤i≤N；By c and { cj, 1≤j≤t-1 } and generate t-th of N long sequence
ct:
Step 4: by t-1 sequence in step 2 and the c in step 3tTotal t N long Sequence composition set { cj, 1≤j
≤ t }, by { cjIn element and setMiddle element is collected with after according to subscript one-to-one correspondence progress mould 2
Close { y 'j, 1≤j≤t }, i.e.,Alice is by { y 'jSent by the common signal channel of zero defect；
Step 5: the information transmitted in Eve to common signal channel is also passive wiretapping, without carrying out distorting etc. it to it
In the case that he operates, Bob and Eve can free of errors receive { y 'j, the indifference that Bob possesses oneself in step 1
Wrong arrangement setWith { y 'jIn sequence carry out whole 2 He of mould, i.e., by element corresponding on each position
2 He of mould is carried out, N long sequence is obtained1≤i≤N, Eve then oneself is received in step 1 by noise jamming
Arrangement setWith { y 'jIn sequence carry out whole mould 2 and obtain N long sequence1≤i≤N, i.e.,
Step 6: 1≤j≤t, Bob and Eve are respectively by following formula (1) and formula (2) firstly, for 1≤i≤N
It calculatesWithBit error probabilityWithWherein αJ, iFor channel error vector ejI-th of bit eJ, i
For the probability of " 1 ", βJ, iFor channel error vector eajI-th of bit eaJ, iFor the probability of " 1 ", secondly, for 1≤i≤N,
Bob and Eve is respectively by following formula (3) and formula (4)
Calculate the bit log-likelihood ratio value about c；
Step 7: the bit log-likelihood ratio value acquired using formula (3) and formula (4), soft-decision is respectively adopted in Bob and Eve
Algorithm recovers K long secret information after being decoded respectivelyWith
As a preferred embodiment, [N, the K] linear block codes of binary described in step 3 is low density parity check code.
As a preferred embodiment, soft-decision algorithm described in step 7 is the confidence of low density parity check code under BSBC
Propagation algorithm.
The theoretical foundation of the step 6 are as follows:
Firstly, byWith
It is found thatEqual to ej=[eJ, i] in comprising " 1 " total amount be odd number probability,Equal to ej=[eJ, i] and eaj=[eaJ, i]
In comprising " 1 " total amount be odd number probability.
Secondly, it has been known that there is theorems: a n long binary sequence, if the probability that its jth position is " 1 " is pj, then entirely
It include the probability of odd number " 1 " in sequence are as follows:Then according to known to the theorem:
Wherein αJ, iFor channel error vector ejI-th of bit eJ, iFor 1 probability, βJ, iFor channel error vector eaj's
I-th of bit eaJ, iFor 1 probability, 1≤j≤t, 1≤i≤N.α in formula (5) and formula (6)J, iAnd βJ, iThe as mistake of BSBC
Transition probability.
Finally, extracting LLR value by taking Bob as an example.ByIt is found that working asShi You
WhenShi You
By similar methods, Eve can obtain the LLR value about c.
From the figure 3, it may be seen that notional result and the simulation result goodness of fit of the invention is higher, it was demonstrated that bit after interaction of the invention
Error probability expression formula is completely reliable, and the bit log-likelihood ratio value extracted accordingly is completely credible, by Soft decision decoding building the
The method of a kind of tapping channel is feasible and highly-safe, performance is good.
Although not providing the simulation result of Hard decision decoding, Soft decision decoding algorithm well known in the art is considered
Can be better than Hard decision decoding, therefore it can be concluded that relative to using Hard decision decoding construction method, base of the present invention
Bit log-likelihood ratio information is extracted in ad hoc fashion and then uses Soft decision decoding that main channel quality is significantly improved,
And the noise level of listener-in is still higher than decoding threshold, therefore decode front and back bit error probability and be held essentially constant, therefore it is entire
The safe capacity of tapping channel model is significantly improved.
Claims (2)
1. it is a kind of by BSBC construct first kind tapping channel method, it is characterised in that: legitimate receiver by BSBC (two into
Make symmetrical broadcast channel) feedback information is sent to legitimate sender, legitimate sender and listener-in respectively receive by noise jamming
Legitimate receiver feedback information, specific method includes step 1:
Step 1: legitimate receiver is randomly generated t, t >=1 is mutually indepedent and each N long binary sequence more general than top grade And send it by Binary Symmetric broadcast channel, legitimate sender and listener-in receive t sequence respectivelyWithWherein ej=[ej,i] and eaj=ea [j,i] be Binary Symmetric broadcast channel error vector,Indicate 2 He of mould, and 1≤i≤N；
Legitimate sender is handled encoded information to be sent according to the feedback information received, then passes through zero defect
Common signal channel send out, the auxiliary channel without safety guarantee is selected as the common signal channel of zero defect, what reduction system was realized answers
Miscellaneous degree, specific method include step 2 to four；
Step 2: legitimate sender generates t-1 mutually indepedent and each N long binary sequence cs more general than top grade at randomj=
[cj,i] spare, wherein 1≤j≤t-1,1≤i≤N；
Step 3: legitimate sender utilizes binary N, the K linear block codes for approaching shannon limit to sent K long secret information x
N long message sequence c=c is obtained after being encodedi, 1≤i≤N；By c and { cj, 1≤j≤t-1 } and generate t-th of N long sequence ct:Binary [N, K] linear block codes is low density parity check code；
Step 4: by t-1 sequence in step 2 and the c in step 3tTotal t N long Sequence composition set { cj,1≤j≤
T }, by { cjIn element and setElement corresponds according to subscript and carries out 2 He of mould in 1≤j≤t, i.e., will be on each position
Corresponding element carries out 2 He of mould, is then gathered { y'j, 1≤j≤t }, i.e.,Legitimate sender is by { y'jBy nothing
The common signal channel of mistake is sent；
Bit log-likelihood ratio information, then passes through Soft decision decoding needed for legitimate receiver extracts Soft decision decoding first
Mode decodes the information received, reduces the wrong bitrate of main channel, improves channel reliability, and then expand main channel
The quality difference between tapping channel improves the safe capacity of first kind tapping channel, listener-in's passive wiretapping legitimate sender
The information of transmission, and being decoded by way of Soft decision decoding to the information received, specific method include step 5 to seven:
Step 5: the information for assuming that listener-in transmits common signal channel is also passive wiretapping, without distorting etc. to it
Other operations, then legitimate receiver and listener-in can free of errors receive { y'j, legitimate receiver is by oneself in step 1
In the zero defect arrangement set that possessesWith { y'jIn sequence carry out whole mould 2 and obtain N long sequenceThe arrangement set by noise jamming that listener-in then receives oneself in step 1With
{y'jIn sequence carry out whole mould 2 and obtain N long sequenceI.e.
Step 6: 1≤j≤t, legitimate receiver and listener-in are respectively by following formula (1) and formula firstly, for 1≤i≤N
(2)
It calculatesWithBit error probabilityWithWherein αj,iFor channel error vector ejI-th of bit ej,iFor " 1 "
Probability, βj,iFor channel error vector eajI-th of bit eaj,iFor the probability of " 1 ", secondly, for 1≤i≤N, legitimate receipt
Person and listener-in are respectively by following formula (3) and formula (4)
Calculate the bit log-likelihood ratio value about c；
Step 7: the bit log-likelihood ratio value acquired using formula (3) and formula (4), legitimate receiver and listener-in are sentenced using soft
Annual reporting law recovers K long secret information after being decoded respectivelyWith
2. a kind of method for constructing first kind tapping channel by BSBC as described in claim 1, it is characterised in that: step 7
The soft-decision algorithm is the belief propagation algorithm of low density parity check code under Binary Symmetric broadcast channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610586991.5A CN106059713B (en) | 2016-07-25 | 2016-07-25 | A method of first kind tapping channel is constructed by BSBC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610586991.5A CN106059713B (en) | 2016-07-25 | 2016-07-25 | A method of first kind tapping channel is constructed by BSBC |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106059713A CN106059713A (en) | 2016-10-26 |
| CN106059713B true CN106059713B (en) | 2019-01-29 |
Family
ID=57416760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610586991.5A Expired - Fee Related CN106059713B (en) | 2016-07-25 | 2016-07-25 | A method of first kind tapping channel is constructed by BSBC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106059713B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106533625B (en) * | 2016-11-29 | 2019-09-06 | 河南科技大学 | A kind of safe transmission method of physical layer suitable for ZigBee-network stelliform connection topology configuration |
| CN106789027B (en) * | 2017-01-03 | 2021-01-12 | 电子科技大学 | Method and system for confirming consistency of secret key by using unconditional secure transmission |
| CN109257743B (en) * | 2018-11-21 | 2021-09-14 | 河南科技大学 | Method for constructing WTC-I through stable BSBC (binary-coded binary-block-code) without channel state information |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6965652B1 (en) * | 2000-06-28 | 2005-11-15 | Marvell International Ltd. | Address generator for LDPC encoder and decoder and method thereof |
| CN1798012A (en) * | 2004-12-30 | 2006-07-05 | 松下电器产业株式会社 | Error-correcting method of calibrating reliability based on low density parity code |
| CN1961517A (en) * | 2004-05-28 | 2007-05-09 | 法国电信公司 | Method for error correction coding comprising local error detection codes, corresponding decoding method, transmitting, receiving and storage device and program |
-
2016
- 2016-07-25 CN CN201610586991.5A patent/CN106059713B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6965652B1 (en) * | 2000-06-28 | 2005-11-15 | Marvell International Ltd. | Address generator for LDPC encoder and decoder and method thereof |
| CN1961517A (en) * | 2004-05-28 | 2007-05-09 | 法国电信公司 | Method for error correction coding comprising local error detection codes, corresponding decoding method, transmitting, receiving and storage device and program |
| CN1798012A (en) * | 2004-12-30 | 2006-07-05 | 松下电器产业株式会社 | Error-correcting method of calibrating reliability based on low density parity code |
Non-Patent Citations (1)
| Title |
|---|
| 《基于编码与信噪一体化的窃听信道模型研究》;杨志良,安建平,李祥明;《北京理工大学学报》;20150915;第35卷(第9期);全文 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106059713A (en) | 2016-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107360568B (en) | Method for realizing symmetric encryption and guaranteeing wireless data secure transmission by utilizing fountain codes | |
| CN103414540A (en) | Degraded eavesdropping channel rate compatible method based on Polar code | |
| CN106059713B (en) | A method of first kind tapping channel is constructed by BSBC | |
| CN104780022A (en) | Physical layer secure transmission method and system based on dynamic change of channel encoding matrix | |
| WO2011023129A1 (en) | Method and equipment for ensuring communication security | |
| CN107359929B (en) | Air interface encryption method based on constellation overlapping in bidirectional relay system | |
| Chen et al. | Design and analysis of multi-level physical-layer network coding for Gaussian two-way relay channels | |
| CN102075931A (en) | Information theoretical security-based key agreement method in satellite network | |
| CN107017960B (en) | A kind of AWGN-wiretap channel anti-eavesdropping safeguard construction and its implementation based on polar code | |
| CN109257743A (en) | The method that WTC-I is constructed by steady BSBC when no channel state information | |
| CN106100795A (en) | A kind of based on inversion code word Plotkin structure and the Polar code coding cooperative of information bit heavily dormancy | |
| CN103402185B (en) | A kind of private information transfer method | |
| Lee et al. | Interference mitigation in MIMO interference channel via successive single-user soft decoding | |
| CN106209710B (en) | The method of first kind tapping channel is constructed under a kind of BI-AWGN broadcast channel | |
| Chen et al. | Spectrum-efficient coded modulation design for two-way relay channels | |
| CN107222284B (en) | The anti-eavesdropping transmission method of fountain coding based on channel feedback in a kind of Internet of Things | |
| CN109617655A (en) | A kind of polarization code wireless data safe transmission method based on random scrambling code auxiliary | |
| Chen | Physical layer security for cooperative relaying in broadcast networks | |
| Steinberg | Channels with cooperation links that may be absent | |
| Sun et al. | Secure transmission scheme for parallel relay channels based on polar coding | |
| CN109688582A (en) | Without the method based on BI-AWGN channel build WTC-I under channel state information | |
| CN106533625B (en) | A kind of safe transmission method of physical layer suitable for ZigBee-network stelliform connection topology configuration | |
| CN103957076B (en) | Building method and communication means of the novel non-linearity into shape code | |
| CN108631944A (en) | A kind of channel-polarization secure coding method based on robust orphan distribution | |
| CN111246460B (en) | Low-complexity and low-time-delay secure transmission method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190129 Termination date: 20190725 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |