CN103269518A - HF (High Frequency) radio state networking method based on resource distributing policy - Google Patents
HF (High Frequency) radio state networking method based on resource distributing policy Download PDFInfo
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Abstract
The invention discloses an HF (High Frequency) radio state networking method based on a resource distributing policy. The network is of a star topologic structure which comprises a central part and peripheral nodes. The central part comprises a network controller and a group of HF transmitters and a group of HF receiver, respectively connected with the network controller. The peripheral nodes comprise a half-duplex HF radio station for executing the steps of uploading service data and control signaling of the peripheral nodes and receiving the commands and the control signaling of the central part. The central part is used for receiving centralized service data and control signaling of the peripheral nodes and issuing the commands and the control signaling of the central part. The network controller controls the work state of the HF transmitters and the HF receivers. The transmitter, the receiver and communication frequency possibly used form a resource pond, and uplink and downlink frequencies are selected through uplink and downlink chains. According to the method provided by the invention, the performance is reliable, and the network has good expandability.
Description
Technical field
Patent of the present invention relates to wireless communication technology networking field, especially relates to the limited a kind of HF radio station network-building method based on resource allocation policy of bandwidth.
Background technology
For in large-scale HF(High frequency, high frequency) the signals collecting network, peripheral node quantity U will reach up to a hundred.General way is that big net is divided into subnet, and subnet is divided into microgrid again, and network topology as shown in Figure 1.
All peripheral nodes are divided into K grouping according to its residing geographical position, communication condition, on average have peripheral node member V=U/K in each grouping.Each grouping is corresponding with a pair of transreceiver at center.Each subnet or microgrid form some Star Network to multiple spot (P2MP).Can carry out the planning of frequency to different subnets or microgrid like this.It is multiplexing to adopt different channels or frequency to carry out FDMA between grouping, adopts same channel or frequency utilization TDMA or CSMA to carry out multiplexing in the grouping.Because employed frequency difference, in fact these subnets or microgrid are separate work, but and the fixed allocation method general character of subnet or microgrid can not get guaranteeing.
Based on the low rate Star Network of HF, main application fields is the regular short message communication of marine vessel at present.The general character that this class is used is that channel condition is relatively than balance, because the transmission of surface wave is arranged; The data age requirement is lower; The data volume of communication is less.Based on these characteristics, the general employing of HF Star Network solves the race problem of shared channel based on the class TDMA agreement of poll strategy.There is absolute control at the center, can determine to inquire about a certain peripheral node a moment, and the node that only is queried has the use shared channel to carry out the right of signal feedback.This HF Star Network based on poll is not enough in ability aspect the solution transducer burst real-time Transmission.
Aspect the transmission of radar data information, still adopt multi-receiver at present at the center, form and the man-to-man reception of peripheral node.Generally will dispose fairly large HF receiving center, dispose the huge HF of quantity simultaneously and receive unit, cost is higher.These class networking means also are not suitable for civilian low-cost the application and the concentrated collection of demblee form data.
Summary of the invention
Goal of the invention: technical problem to be solved by this invention is at the deficiencies in the prior art, and a kind of HF radio station network-building method based on resource allocation policy is provided.
In order to solve the problems of the technologies described above, the invention discloses a kind of HF radio station network-building method based on resource allocation policy, stelliform connection topology configuration is adopted in described networking, comprises core and peripheral node; Described core comprises network controller, and one group of HF transmitter and one group of HF receiver of being connected respectively with network controller; Peripheral node comprises one group of half-duplex HF radio station;
Half-duplex HF radio station is used for uploading of execution peripheral node business datum, control signaling and core instruction, controls the receiving step of signaling;
Core is used for carrying out peripheral node business datum, the control signaling concentrated and receives and core instruction, control transmitting signaling downwards, by network controller the operating state of HF transmitter and HF receiver is controlled;
Transmitter, receiver and the communication frequency that may use are formed resource pool, realize choosing of upstream frequency, downstream frequency by up link and down link.
Among the present invention, the up link in the networking of HF radio station comprises with the lower part:
In each time period, core and each peripheral node are all safeguarded same uplink communication frequency meter, safeguard a MASK matrix simultaneously, and uplink communication frequency meter structure is as follows:.
The uplink communication frequency meter:
Wherein, N is the receiver number, and L is the scanning channel number, and both counterparts are communication frequency point f;
The MASK matrix is that the L * N of a corresponding uplink communication frequency meter ties up matrix, and initial condition matrix all elements is 1 entirely, represents that all the communication frequency points in the corresponding with it communication frequency table all can use;
The Frequency point that the receiver of core is shown to set in communication frequently scans, networking dynamically is each peripheral node allocate communications Frequency point, becoming every row at last until the MASK matrix, an element is only arranged is 1, and other element is 0 matrix, and communication resource distribution finishes;
After the business data transmission service ending of peripheral node, inform core by upstream control signaling, this moment, core discharged its corresponding receiver, and MASK matrix respective column is set to complete 0.The data of up (peripheral node is to the core receiver) comprising: business datum (from the peripheral node transducer) and control signaling.The data of descending (the core transmitter is to peripheral node) comprising: instruction and control signaling.
Among the present invention, the down link in the networking of HF radio station comprises following part: core and each peripheral node safeguard as next downlink communication frequency meter that the every row of downlink communication frequency meter represents the work primary frequency g of a period
MzAnd reserve frequency
Downlink communication frequency meter structure is as follows:
The downlink communication frequency meter:
Wherein m is any natural number among 1～M, and z is any natural number among 1～Z, and M is the transmitter number, the time hop count of Z for dividing;
Peripheral node is when the primary frequency of arbitrary period of scanning, form a signal quality queuing tabulation in this locality, and in upstream control signaling is mutual, this node station number, communication frequency point sequence number two tuples are fed back to core, core is according to the feedback of each peripheral node, form the communications status table, the communications status table is preserved peripheral node station number and the access node quantity that each transmitter inserts;
If the arbitrary transmitter of core can not be got in touch with any one peripheral node on primary frequency, namely the access peripheral node quantity of its correspondence is 0, and then this transmitter will adopt reserve frequency to launch; If peripheral node scanning is used communication frequency less than the main of a transmitter, then will scan the reserve frequency of this transmitter in the next cycle.
Among the present invention, the HF networking comprises that the peripheral node network sets up flow process, may further comprise the steps:
If 36, according to the transmitting acknowledgement instruction of receiving, would then upgrade link;
If 37, if receive MASK matrix update status command, would then upgrade the MASK matrix;
5, a kind of HF radio station network-building method based on resource allocation policy according to claim 4 is characterized in that, the HF networking comprises that the network controller network sets up flow process, may further comprise the steps:
The HF transmitter of core and HF receiver carry out foundation and the maintenance of network under the control of network controller (NCU:Network Control Unit);
The present invention in large-scale HF signals collecting network, a plurality of transmitters, a plurality of receiver and their the employed communication frequencys of gathering center configuration become the resource of HF radio station network.How patent research of the present invention distributes these communication resources, to reach the efficient running of HF radio station network.
Beneficial effect: the HF radio station network-building method biggest advantage based on resource allocation policy of the present invention is exactly that resource distribution is flexible, down link can be selected optimum frequency, but up link at first guarantees the general character, and through statistics after a while, probability that can be higher is selected better channel.Aspect system extension, can be according to factors such as the quantity of peripheral node, professional qos requirement and investment funds, the quantity of choose reasonable first stage of construction centraltransmitter and receiver is to reach the best ratio of performance to price.In the follow-up construction, can increase transmitter, the receiver quantity at center according to condition, with the performance of further raising system, improve the service quality of each peripheral node.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is done further to specify, above-mentioned and/or otherwise advantage of the present invention will become apparent.
Fig. 1 is traditional HF subnet topological structure.
The HF network topology structure that Fig. 2 adopts for the present invention.
Fig. 3 sets up flow process for HF peripheral node network.
Fig. 4 sets up flow process for the network controller network.
Embodiment
The structure of HF signals collecting network of the present invention as shown in Figure 2, it is star-like that network topology totally is, each peripheral node disposes one group of half-duplex HF radio station (TRx:Transceiver) 4, carry out the reception of uploading and instruction of signal, the signal reception and instruction that N HF receiver 3 of core configuration and M HF transmitter 1 are concentrated issues, and they pass through network controller (NCU:Network Control Unit) 2 collaborative works.Network controller 2 is connected with HF transmitter (Tx:Transmitter) 1 and HF receiver (Rx:Receiver) 3, and the operating state of HF transmitter 1 and HF receiver 3 is controlled.
Up link design of the present invention is as follows:
Based on the networking strategy that resource is distributed transmitter, the receiver of core and the communication frequency that may use are formed the utilizable resource pool of group network system, the access of each peripheral node all will utilize existing resources to realize.
Precondition:
Core and each peripheral node are all safeguarded same communication frequency table, safeguard a MASK matrix simultaneously;
The communication frequency sheet form is as follows:
The communication frequency table comprises HF receiver sequence, the Frequency point of scanning channel sequence and both correspondences.
The MASK matrix is that one L * N ties up 0/1 matrix, and initial condition is complete 1, and expression all frequencies in the corresponding communication frequency table with it all can be used.
MASK shows each channel that receiver scans that is listed as corresponding core, supposes that the number of channel of scanning is L.During initialization, the Frequency point that the receiver of core is shown to set in communication is frequently done scanning.Because the communication frequency quantity of table is bigger frequently, can think to arbitrary peripheral node to have at least a class frequency to communicate by letter.Peripheral node is selected a communication frequency f in the table frequently randomly in communication
NlCarrying out signal uploads.In case signal is successfully received by n receiver, this receiver will withdraw from scanning mode, and the center will (n, l) individual element all puts 0 outward, and (n l) broadcasts away with sequence number by all M of down channel transmitter except the the n of MASK matrix row.Certainly, also the signal to noise ratio (snr) threshold gamma can be set
Th, only as received signal to noise ratio γ〉and γ
ThThe time, just make this receiver withdraw from scanning mode.Peripheral node is received the MASK matrix of each self refresh oneself behind the broadcast singal, keeps consistent with the center.
Subsequently, other peripheral node will be selected communication frequency at random in being shown frequently by the communication behind the MASK matrix mask, its selected probability only takies an available communication frequency owing to withdraw from the receiver n of scanning mode before, so will reduce L doubly with respect to other receiver.This can reduce the probability of the same channel of a plurality of peripheral node contentions of starting stage to a certain extent.Certainly, the data that other peripheral node also can utilize synchronous MASK matrix to provide, the preferential corresponding communication frequency of center receiver of selecting to be in scanning mode.If the communication frequency of selecting is f
Pq, then
So, group network system dynamically is each peripheral node allocate communications resource always, and becoming every row at last until the MASK matrix, an element is only arranged is 1, and other element is 0 matrix.At this moment, communication resource distribution finishes, and the node of back only can be realized inserting by competition.
Because the sensors observe signal of peripheral node is bursty data, after the peripheral node data transmission service finishes, can be by up signaled core.This moment, core discharged the resource of the corresponding receiver n of its institute, and receiver n enters scanning mode, and MASK matrix n row all elements is put 1, and will comprise the release signaling broadcasting of sequence number n, so that each peripheral node renewal MASK matrix.
Down link design of the present invention is as follows:
M HF transmitter of core configuration, so also there is corresponding scheduling problem in down link.If it is lower that the transmission delay of instruction and signal requires, can adopt and the up link similar design, namely transmitter is selected the frequency emission at random in a class frequency storehouse, and each peripheral node is in scanning mode at one's leisure.
Consider the requirement of real-time, down link considers to adopt following design:
At first, core and each peripheral node safeguard as next and open frequency meter that every row represents the work primary frequency g of certain period
MzAnd reserve frequency
Frequency meter:
Peripheral node scans the primary frequency g of certain period z
Mz(m=1,2 ..., M), through M emission cycle, peripheral node can be determined best at present downlink communication frequency
Form simultaneously a signal quality queuing tabulation in this locality, and in up Signalling exchange with this node station number, frequency point number two tuples
Feed back to core.Core forms the communications status table according to the feedback of each peripheral node, preserves peripheral node sequence number and quantity that each transmitter inserts.
Signal quality queuing tabulation:
The communications status table:
If certain transmitter m of center can not get in touch with any one peripheral node on primary frequency, i.e. its corresponding access node quantity e
m=0, then transmitter m will adopt reserve frequency to launch.If peripheral node scanning is used communication frequency less than the main of certain centraltransmitter, then will scan the reserve frequency of this transmitter in the next cycle.
Peripheral node after the networking will utilize the best frequency of selecting in a period of time
(with certain transmitter correspondence of center) carries out downlink communication with the center.The peripheral node that does not also have to network will continue scanning, up to finding one can lead to frequency, then carry out data-transmission mode.
The important instruction at center will be gone out by all transmitter broadcasts of center as changing frequency, public message etc., so that each peripheral node can successfully receive; (n l) waits the signal relevant with the particular peripheral node, can pass through all transmitter broadcasts, also can go out by center corresponding transmitter m clean culture or multicast for MASK matrix update sequence number.
Can also comprise the up signal to noise ratio (snr) of peripheral node in downlink broadcast, the multicast signal, be to continue to use this frequency for communication or reselect communication frequency in order to allow peripheral node select.Through accumulation after a while, each peripheral node just can be known at present communication frequency preferably, can select these Frequency points with higher weights in follow-up uplink.
The present invention further sets up flow process referring to the network controller network that the HF peripheral node network of Fig. 3 is set up flow process and Fig. 4.The wherein network control of HF peripheral node inner realization in the radio station also can realize by the network control module (NCM:Network Control Module) that is connected with the radio station; The network of HF core is set up with control by receiving network controller (NCU) enforcement that unit is connected with HF emission unit with HF.
Fig. 3 sets up flow chart for the peripheral node network, and the wherein network control of HF peripheral node inner realization in the radio station also can realize by the network control module (NCM:Network Control Module) that is connected with the radio station.Namely enter the reception scanning mode after the peripheral node start, through maximum 2M emission cycles (if M centraltransmitter all launched with reserve frequency) in M emission cycle (if M centraltransmitter all launched with primary frequency)
As shown in Figure 3, the HF networking comprises that the peripheral node network sets up flow process, may further comprise the steps:
If 36, according to the transmitting acknowledgement instruction of receiving, would then upgrade link;
If 37, if receive MASK matrix update status command, would then upgrade the MASK matrix;
As shown in Figure 4, the HF networking comprises that the network controller network sets up flow process, may further comprise the steps:
The HF transmitter of core and HF receiver carry out foundation and the maintenance of network under the control of network controller (NCU:Network Control Unit);
The invention provides a kind of HF radio station network-building method based on resource allocation policy; method and the approach of this technical scheme of specific implementation are a lot; the above only is preferred implementation of the present invention; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.In the present embodiment not clear and definite each part all available prior art realized.
Claims (5)
1. the HF radio station network-building method based on resource allocation policy is characterized in that, stelliform connection topology configuration is adopted in described networking, comprises core and peripheral node; Described core comprises network controller, and one group of HF transmitter and one group of HF receiver of being connected respectively with network controller; Peripheral node comprises one group of half-duplex HF radio station;
Half-duplex HF radio station is used for uploading of execution peripheral node business datum, control signaling and core instruction, controls the receiving step of signaling;
Core is used for carrying out peripheral node business datum, the control signaling concentrated and receives and core instruction, control transmitting signaling downwards, by network controller the operating state of HF transmitter and HF receiver is controlled;
Transmitter, receiver and the communication frequency that may use are formed resource pool, realize choosing of upstream frequency, downstream frequency by up link and down link.
2. a kind of HF radio station network-building method based on resource allocation policy according to claim 1 is characterized in that the up link in the networking of HF radio station comprises with the lower part:
In each time period, core and each peripheral node are all safeguarded same uplink communication frequency meter, safeguard a MASK matrix simultaneously, and uplink communication frequency meter structure is as follows:.
The uplink communication frequency meter:
Wherein, N is the receiver number, and L is the scanning channel number, and both counterparts are communication frequency point f;
The MASK matrix is that the L * N of a corresponding uplink communication frequency meter ties up matrix, and initial condition matrix all elements is 1 entirely, represents that all the communication frequency points in the corresponding with it communication frequency table all can use;
The Frequency point that the receiver of core is shown to set in communication frequently scans, networking dynamically is each peripheral node allocate communications Frequency point, becoming every row at last until the MASK matrix, an element is only arranged is 1, and other element is 0 matrix, and communication resource distribution finishes;
After the business data transmission service ending of peripheral node, inform core by upstream control signaling, this moment, core discharged its corresponding receiver, and MASK matrix respective column is set to complete 0.
3. a kind of HF radio station network-building method based on resource allocation policy according to claim 2 is characterized in that the down link in the networking of HF radio station comprises following part:
Core and each peripheral node safeguard as next downlink communication frequency meter that the every row of downlink communication frequency meter represents the work primary frequency g of a period
MzAnd reserve frequency
Downlink communication frequency meter structure is as follows:
The downlink communication frequency meter:
Wherein m is any natural number among 1～M, and z is any natural number among 1～Z, and M is the transmitter number, the time hop count of Z for dividing;
Peripheral node is when the primary frequency of arbitrary period of scanning, form a signal quality queuing tabulation in this locality, and in upstream control signaling is mutual, this node station number, communication frequency point sequence number two tuples are fed back to core, core is according to the feedback of each peripheral node, form the communications status table, the communications status table is preserved peripheral node station number and the access node quantity that each transmitter inserts;
If the arbitrary transmitter of core can not be got in touch with any one peripheral node on primary frequency, namely the access peripheral node quantity of its correspondence is 0, and then this transmitter will adopt reserve frequency to launch; If peripheral node scanning is used communication frequency less than the main of a transmitter, then will scan the reserve frequency of this transmitter in the next cycle.
4. a kind of HF radio station network-building method based on resource allocation policy according to claim 3 is characterized in that, the HF networking comprises that the peripheral node network sets up flow process, may further comprise the steps:
Step 31, peripheral node start are carried out scan channel, and the communication frequency of the HF transmitter of core is scanned;
Step 32 is judged to have or not available communication frequency point: if do not find the communication frequency of the HF transmitter of core, then return step 31 and continue scanning; If the downstream frequency point that discovery can be led in the scanning of one-period then upgrades the MASK matrix, selects the optimum traffic frequency point by comparing received signal to noise ratio, and two tuples that this node station number, communication frequency point sequence number are formed are fed back;
Step 33 judges whether emission: if emission carry out step 34, otherwise carry out step 35;
Step 34, judge whether first emission: if initial link setup is launched when networking first, then at first check this node MASK matrix, select the communication frequency point at random according to the MASK matrix then, and with the up business datum of the emission of transmitted waveform at random, carry out step 35; Network if not initial link setup, then with the fixed communication Frequency point of determining before, with the up business datum of ejected wave shape emission that takes place frequently surely, carry out step 35;
Step 35, communication frequency point receives service data information;
If 36, according to the transmitting acknowledgement instruction of receiving, would then upgrade link;
If 37, if receive MASK matrix update status command, would then upgrade the MASK matrix;
Step 38 if receiving to change frequently notifies, is then returned step 31, otherwise is returned step 33.
5. a kind of HF radio station network-building method based on resource allocation policy according to claim 4 is characterized in that, the HF networking comprises that the network controller network sets up flow process, may further comprise the steps:
The HF transmitter of core and HF receiver carry out foundation and the maintenance of network under the control of network controller;
Step 41, core network controller send initial link setup signaling;
Step 42 is selected radiation pattern, if multicast then adopts two above HF transmitter emission signalings; If all HF transmitter emission signalings are then adopted in broadcasting; If single HF transmitter emission signaling is then adopted in clean culture;
Step 43, core network controller judge that the HF receiver has no-raster to receive, if having, be networking two tuples that the HF receiver receives new peripheral node, carry out step 45, otherwise, corresponding HF receiver receives uplink business data with the communication frequency point of preceding state, carry out step 44;
Step 44 judges whether peripheral node launches end, if then carry out step 45, otherwise carry out step 46;
Step 45 is upgraded the MASK matrix;
Step 46 is upgraded the downlink communication state table, and network controller returns step 42 according to the downlink communication state table, periodically launches downlink signaling.
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| CN104093193A (en) * | 2014-07-04 | 2014-10-08 | 中国电子科技集团公司第三十研究所 | Dynamic frequency scanning method used for short wave networking link building |
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| CN105554853A (en) * | 2015-12-31 | 2016-05-04 | 陕西烽火电子股份有限公司 | Method for optimizing shortwave boot communication |
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| CN107547305A (en) * | 2017-07-19 | 2018-01-05 | 上海因士环保科技有限公司 | A kind of network communicating system and method |
| CN111693770A (en) * | 2020-06-05 | 2020-09-22 | 中国人民解放军63921部队 | Uplink frequency scanning method for measurement and control station/measurement ship |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104093193A (en) * | 2014-07-04 | 2014-10-08 | 中国电子科技集团公司第三十研究所 | Dynamic frequency scanning method used for short wave networking link building |
| CN104093193B (en) * | 2014-07-04 | 2018-03-06 | 中国电子科技集团公司第三十研究所 | A kind of dynamic frequency scanning method for shortwave networking link setup |
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| CN105554853A (en) * | 2015-12-31 | 2016-05-04 | 陕西烽火电子股份有限公司 | Method for optimizing shortwave boot communication |
| CN105554853B (en) * | 2015-12-31 | 2019-01-11 | 陕西烽火电子股份有限公司 | A kind of optimization method of shortwave booting communication |
| CN106793014A (en) * | 2017-02-06 | 2017-05-31 | 广东轻工职业技术学院 | A kind of method of wireless automatic network-building |
| CN107547305A (en) * | 2017-07-19 | 2018-01-05 | 上海因士环保科技有限公司 | A kind of network communicating system and method |
| CN111693770A (en) * | 2020-06-05 | 2020-09-22 | 中国人民解放军63921部队 | Uplink frequency scanning method for measurement and control station/measurement ship |
| CN111693770B (en) * | 2020-06-05 | 2023-02-03 | 中国人民解放军63921部队 | Uplink frequency scanning method for measurement and control station/measurement ship |
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| CN103269518B (en) | 2015-10-21 |
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