CN113644954B - High-throughput satellite system-level power and bandwidth resource joint distribution method - Google Patents

High-throughput satellite system-level power and bandwidth resource joint distribution method Download PDF

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CN113644954B
CN113644954B CN202110679579.9A CN202110679579A CN113644954B CN 113644954 B CN113644954 B CN 113644954B CN 202110679579 A CN202110679579 A CN 202110679579A CN 113644954 B CN113644954 B CN 113644954B
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秦鹏飞
衣龙腾
周业军
禹航
肖永轩
秦兆涛
缪中宇
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China Academy of Space Technology CAST
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
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    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18513—Transmission in a satellite or space-based system
    • H—ELECTRICITY
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    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
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Abstract

A joint distribution method of high-flux satellite system-level power and bandwidth resources mainly comprises the steps of collecting user communication capacity requirements and the distribution condition of the power and bandwidth resources of a current satellite, joint distribution of the on-satellite power and bandwidth resources, output power, a bandwidth distribution scheme, calculation of system capacity errors and the like. In the joint allocation of the power and bandwidth resources on the satellite, a combined optimization method is adopted. The problem that the traditional satellite is uneven in busy and idle wave beams when the user requirements change and the problem that the utilization efficiency of satellite resources is not high when a single power resource or bandwidth resource adjusting scheme is used are solved, and the resource utilization rate of the satellite is improved on the premise of meeting the communication quality of users.

Description

High-throughput satellite system-level power and bandwidth resource joint allocation method
Technical Field
The invention relates to a high-throughput satellite resource allocation method, in particular to a system-level power and bandwidth resource joint allocation method based on an on-satellite flexible power technology and a flexible filtering technology
Background
After being transmitted, the satellite resources of the traditional satellite are statically fixed, so that some wave beam capacities cannot meet the user requirements, and some wave beam capacities are idle, so that 'busy and idle unevenness' among wave beams is caused, the satellite resources are seriously wasted, and the user requirements cannot be well met. The on-satellite power resource and bandwidth resource are important parameters influencing capacity, and the on-satellite resource adjustment is to dynamically adjust the power and bandwidth resource of a beam according to the change of the communication requirement of a user, so that the communication requirement of the user is met, and the utilization rate of the on-satellite resource is improved.
The power resource adjustment of the satellite can increase the transmitting carrier power of the satellite, compensate signal attenuation and improve beam capacity. When satellite resources are allocated, the traditional method is to adjust power and bandwidth resources independently, and three important defects exist in the method.
(1) For a beam with fixed bandwidth, the improvement of unit capacity needs more power resources, and the single adjustment of power may not meet the requirement of high-capacity communication; for fixed power beams, beams with poor channel conditions may be at risk of service interruption when the bandwidth resources are adjusted singly.
(2) The power and the bandwidth simultaneously influence the capacity of the wave beam, the single adjustment of the power or bandwidth resource can cause the waste of satellite resources, and the adjustment of the capacity of the wave beam needs to consider the joint optimization of the power and the bandwidth resource.
(3) For a high-throughput satellite communication system, a common method for bandwidth allocation is to convert an allocation problem into a mathematical model for optimal solution, and such algorithms have high computational complexity and large algorithm delay.
Disclosure of Invention
The invention solves the technical problems that: the method overcomes the defects of the prior art, provides a high-throughput satellite system-level power and bandwidth resource joint allocation method, provides a high-throughput satellite system-level power and bandwidth joint allocation algorithm based on a loading scheme of a multi-port amplifier and a flexible filter, improves the satellite resource utilization rate, and simultaneously ensures the communication quality of users.
The technical solution of the invention is as follows:
a joint allocation method for high-throughput satellite system-level power and bandwidth resources comprises the following steps:
1) Sequentially selecting each wave beam combination to obtain the current bandwidth value B of each wave beam in the wave beam combination i While obtaining the communication capacity requirement R of each beam i (ii) a According to the capacity requirement R of each beam i Sum bandwidth value B i Determining the spectral utilization efficiency eta of each beam i ；i∈[1,N](ii) a The satellite downlink comprises K beam combinations, and each beam combination comprises N beams; wherein N is a positive integer, and the value range of N is 4-8; k is a positive integer and is greater than or equal to 8;
2) Spectral utilization η of each beam according to step 1) i And link budget, calculating work of each beam separatelyValue of the rate P i ；
3) According to the sum of the power of all beams in each beam combination
Figure BDA0003122363040000021
Judging whether the distribution condition is met, if the distribution condition is met, directly setting the current bandwidth value B of each beam i And the power value P of each beam obtained in step 2) i Outputting the power bandwidth allocation scheme to a satellite transponder system, otherwise, entering step 4);
4) According to the DVB protocol, determining the spectrum utilization efficiency of each beam corresponding to different modulation coding modes, and obtaining the spectrum utilization efficiency eta of the beam i in the modulation coding mode j ij So as to obtain the corresponding power value P of the beam i under the modulation coding mode j ij ；
5) According to the step 4), the spectrum utilization efficiency eta of the wave beam i under the modulation coding mode j ij Calculating the limit bandwidth B of the wave beam i in the modulation coding mode j ij ；
6) According to the limit bandwidth B of the wave beam i obtained in the step 5) when the coding mode j is modulated ij Extracting B or less from the optional bandwidth set B ij The bandwidth elements form a bandwidth set b of the beam i under the modulation coding mode j ij ；
7) According to the bandwidth set b of all the wave beams under different modulation coding modes ij Obtaining the bandwidth combination of all beams;
8) According to all bandwidth combinations obtained in the step 7), respectively obtaining each element B in each bandwidth combination ip Corresponding power value P ip Accumulating to obtain the sum of the powers of all beams corresponding to each bandwidth combination
Figure BDA0003122363040000031
Simultaneously, respectively obtaining the sum of all elements in each bandwidth combination as the sum of all bandwidths corresponding to each bandwidth combination
Figure BDA0003122363040000032
p is the modulation coding mode corresponding to the element;
9) Screening to obtain the sum of all powers
Figure BDA0003122363040000033
Less than or equal to the total power P total And sum of bandwidths
Figure BDA0003122363040000034
Less than or equal to the total bandwidth B total As an optional combination;
10 Respectively calculating the capacity error D of each optional combination;
11 Select the selectable combination with the smallest D as the beam combination result to obtain the bandwidth value B of each beam in the beam combination result ip Sum power value P ip Outputting the power bandwidth allocation scheme to a satellite transponder system;
12 Repeating the steps 1) to 11) for K times, obtaining a power bandwidth distribution scheme of K x N wave beams of the satellite downlink, and outputting the power bandwidth distribution scheme to the satellite transponder system.
Optionally, the determining of the spectral utilization efficiency η of each beam of step 1) is performed by i The method specifically comprises the following steps:
η i ＝R i /B i 。
optionally, the determining whether the allocation condition is satisfied in step 3) specifically includes:
if it is
Figure BDA0003122363040000035
Judging that the distribution condition is met; otherwise, judging that the distribution condition is not met;
wherein, P total Is the total power.
Optionally, the limit bandwidth B of the beam i in the modulation and coding scheme j in step 5) is calculated ij The method specifically comprises the following steps:
B ij ＝R i /η ij 。
optionally, the selectable bandwidth set B in step 6) is specifically:
B＝{b 1 ，b 2 ，b 3 ，…，b n }; value range b n ∈(0，2500MHz)。
Optionally, the step size range of two adjacent elements in the selectable bandwidth set B is [1 to 50MHz ].
Optionally, the bandwidth set b ij The number of the middle element is k ij 。
Optionally, bandwidth set b ij The maximum value of the medium element is less than or equal to the limit bandwidth B ij 。
Optionally, the bandwidth combination of all beams in step 7) specifically includes:
71 Obtaining the bandwidth set b of the wave beam i under any modulation coding mode according to the wave beam number ij Any one of the elements, constituting a bandwidth combination;
72 Repeat step 71)
Figure BDA0003122363040000041
And then, carrying out permutation and combination to obtain all bandwidth combinations.
Optionally, the calculating the capacity error D of each optional combination in step 10) specifically includes:
for any one of the optional combinations, according to each element B in the optional combination ip Spectrum utilization ratio eta corresponding to each element ip And according to the communication capacity requirement R of the corresponding wave beam of the element i Determining a capacity error D of the selectable combination;
Figure BDA0003122363040000042
and p is the modulation coding mode corresponding to the element.
Compared with the prior art, the invention has the advantages that:
(1) According to the invention, through calculating the capacity error, the beam power bandwidth allocation scheme with the highest capacity matching rate is obtained in the range of the total on-satellite power and the total bandwidth, so that the problem of uneven busy and idle beams when the user demand changes in the conventional satellite is solved, the on-satellite resource utilization rate is improved, the service quality of the user is ensured, and meanwhile, certain fairness of the system is maintained;
(2) By jointly distributing the power and bandwidth resources, the problem that the high-capacity communication requirement cannot be met when the power resources are singly adjusted and the problem that communication interruption exists in a user when the bandwidth resources are singly adjusted are solved, and the utilization rate of satellite resources is further improved;
(3) The discrete power value is used as the power value set, the value set of the bandwidth is determined according to the power value, a plurality of discrete power bandwidth groups are formed for subsequent optimized distribution, the problem of large algorithm calculation amount is solved, and the method has good use value.
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FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
A resource control method for a high-throughput satellite mainly comprises the steps of collecting user communication capacity requirements and the allocation condition of power and bandwidth resources of the current satellite, on-satellite power and bandwidth resource joint allocation, output power, a bandwidth allocation scheme, calculating system capacity errors and the like. In the joint allocation of the on-satellite power and bandwidth resources, a combinatorial optimization method is adopted, as shown in fig. 1, which mainly comprises the following steps:
acquiring K wave beam combinations in a satellite downlink, wherein each wave beam combination comprises N wave beams; n is a positive integer, and the value range of N is 4-8; k is a positive integer and K is greater than or equal to 8. Acquiring the total number M of modulation coding mode types of a satellite communication system, numbering beams by using i and numbering modulation coding modes by using j in each beam combination; obtaining the total power P of each beam combination total And total bandwidth B total ；
1) Sequentially selecting each beam combination to obtain the current bandwidth value B of each beam in the beam combination i While obtaining the communication capacity requirement R of each beam i (ii) a According to the capacity requirement R of each beam i And bandwidth value B i According to the formula eta i ＝R i /B i Calculating the spectral utilization efficiency eta of each beam i ；i∈[1,N](ii) a Satellite down linkThe method comprises the steps of K wave beam combinations, wherein each wave beam combination comprises N wave beams; wherein N is a positive integer, and the value range of N is 4-8; k is a positive integer and is greater than or equal to 8;
2) Spectral utilization η of each beam according to step 1) i And link budget, calculating power value P of each beam respectively i (ii) a The method for calculating the definite power value P and the spectrum utilization efficiency eta of the wave beam calculates the carrier-to-noise ratio C/N of the wave beam according to the link budget when the power of the wave beam is P, and calculates the spectrum utilization efficiency eta of the wave beam according to the DVB standard protocol. In the method, a function f is defined as eta = f (P), a function g is defined as P = g (eta), and the function g is an inverse function of the function f, wherein P and eta are power and spectrum utilization efficiency values of a beam, respectively;
3) Determining the sum of the powers of all beams in each beam combination
Figure BDA0003122363040000051
Whether less than or equal to the total power P total If at all
Figure BDA0003122363040000052
The current bandwidth value B of each beam is directly used i And the power value P of each beam obtained in step 2) i Outputting the power bandwidth allocation scheme to a satellite transponder system, otherwise, entering step 4);
4) According to the DVB protocol, determining the spectrum utilization efficiency of each beam corresponding to different modulation coding modes, and obtaining the spectrum utilization efficiency eta of the beam i in the modulation coding mode j ij So as to obtain the corresponding power value P of the beam i under the modulation coding mode j ij ；
For example, when the modulation coding scheme j is selected for the beam i, the frequency utilization efficiency is η ij Calculating the power P of the beam i and the modulation and coding scheme j ij ＝g(η ij )；
5) According to the step 4), the spectrum utilization efficiency eta of the wave beam i under the modulation coding mode j ij Calculating the limit bandwidth B of the wave beam i in the modulation coding mode j ij ＝R i /η ij ；
6) According to the limit bandwidth B of the wave beam i obtained in the step 5) when the coding mode j is modulated ij Extracting B or less from the optional bandwidth set B ij The bandwidth elements form a bandwidth set b of the beam i under the modulation coding mode j ij ；
Wherein B = { B = { (B) 1 ，b 2 ，b 3 ，…，b n }; value range b n Belongs to (0, 2500MHz), and the step length value range is from [1 to 50MHz]；
Set of bandwidths b ij The number of the middle element is k ij (ii) a Set of bandwidths b ij The maximum value of the medium element is less than or equal to the limit bandwidth B ij ；
That is, the bandwidth value when defining the beam i and the modulation coding mode j is set b ij ＝{b m |b m <＝B ij ，b m ∈B}；
7) According to the bandwidth set b of all the wave beams under different modulation coding modes ij Obtaining the bandwidth combination of all the beams; the method specifically comprises the following steps:
71 Obtaining the bandwidth set b of the wave beam i under any modulation coding mode according to the wave beam number ij Any one element of (a) to form a bandwidth combination;
72 Repeat step 71)
Figure BDA0003122363040000061
And thirdly, carrying out permutation and combination to obtain all bandwidth combinations.
When the wave beam i selects the modulation coding mode j, the bandwidth dereferencing number of the wave beam i in the modulation coding mode j is k ij (ii) a The number of bandwidth combinations that the beam i can select is
Figure BDA0003122363040000062
Sequentially selecting bandwidth combinations of beam 1 to beam N, and sharing
Figure BDA0003122363040000063
A selection scheme is adopted;
8) According to all the bandwidth combinations obtained in the step 7), respectively obtaining each element B in each bandwidth combination ip Corresponding power value P ip Accumulating to obtain the sum of the powers of all beams corresponding to each bandwidth combination
Figure BDA0003122363040000071
Simultaneously, respectively obtaining the sum of all elements in each bandwidth combination as the sum of all bandwidths corresponding to each bandwidth combination
Figure BDA0003122363040000072
p is the modulation coding mode corresponding to the element;
9) Screening to obtain the sum of all powers
Figure BDA0003122363040000073
Less than or equal to the total power P total And sum of bandwidths
Figure BDA0003122363040000074
Less than or equal to the total bandwidth B total As an optional combination;
10 Respectively calculating the capacity error D of each optional combination, specifically as follows:
for any one of the optional combinations, according to each element B in the optional combination ip Spectrum utilization ratio eta corresponding to each element ip And according to the communication capacity requirement R of the corresponding wave beam of the element i Determining a capacity error D of the selectable combination;
Figure BDA0003122363040000075
p is the modulation coding mode corresponding to the element;
11 Selecting the selectable combination with the minimum D as the beam combination result to obtain the bandwidth value B of each beam in the beam combination result ip Sum power value P ip Outputting the power bandwidth allocation scheme to a satellite transponder system; combining each element B in the beam combination result ip Each element corresponds to a modulation code as a bandwidth of a corresponding beamPower of mode P ip As the power of the corresponding beam;
12 Repeating the steps 1) to 11) for K times, obtaining a power bandwidth distribution scheme of K x N wave beams of the satellite downlink, and outputting the power bandwidth distribution scheme to the satellite transponder system.
Aiming at the defects of the prior art, the invention provides a high-throughput satellite system-level power and bandwidth resource joint allocation method, which solves the problems of uneven busy and idle wave beams when the user requirements of the traditional satellite are changed and low satellite resource utilization efficiency when a single power resource or bandwidth resource adjusting scheme is used, and improves the resource utilization rate of the satellite on the premise of meeting the communication quality of the user, and comprises the following steps:
(1) Acquiring a power and bandwidth scheme of the current satellite, sequentially selecting each beam combination, and acquiring the bandwidth Bi and the communication capacity requirement Ri of all beams in the beam combination;
(2) Obtaining a modulation mode required by each wave beam according to the capacity requirement Ri and the bandwidth Bi of the wave beam, and calculating the power Pi of each wave beam according to the modulation mode and the channel condition of each wave beam;
(3) If the sum of the powers of all the beams in each beam combination is less than or equal to the total power, then step 10) is entered, otherwise step 4) is entered;
(4) And calculating the power value Pij of the beam i under the modulation mode j according to the channel condition of the beam, and calculating the maximum bandwidth value Bij when the power value of the beam i is Pij according to the capacity requirement. The bandwidth of the wave beam i under the modulation mode j is set which is less than or equal to Bij;
(5) The length of the building is Pi A i Ai is the number of power and bandwidth combinations of the beam i, and locates the iterator index at the 1 st bit of the data stream;
(6) Sequentially selecting the power Pij and the bandwidth Bij of each beam by taking index =1 as a starting point until i is the maximum value;
(7) If the sum of the powers of all the beams is less than the total power and the sum of the bandwidths of all the beams is less than the total bandwidth, calculating a difference D1 between the actual capacity of the beams and the communication requirement, and entering the step 8); otherwise, entering step 9);
(8) If index =1, D = D1. Saving the current power and bandwidth allocation scheme; otherwise, if the difference D1 is smaller than the stored difference D, replacing D with D1, and storing the current power and bandwidth allocation scheme;
(9) index = index +1, repeating steps 6) to 8) until all power and bandwidth combinations have been selected;
(10) And outputting the final power and bandwidth allocation scheme.
Example (b):
in an embodiment, there are 8 beam combinations in the satellite downlink, each beam combination comprising 4 beams; the total number of modulation and coding mode types of the satellite communication system is 28, and the total power P total =400W, total bandwidth B total =1000MHz; the spectrum utilization efficiency corresponding to each modulation coding scheme is shown in table 1:
table 1 correspondence table of modulation coding scheme and frequency utilization efficiency
Figure BDA0003122363040000081
Figure BDA0003122363040000091
The maximum value of the bandwidth of each wave beam is 1000MHz, the step length is 25MHz, and the selectable set of the bandwidths is B = {25,50,75, \8230;, 975,1000};
the initial value of the power bandwidth in each beam group is the average distribution total power and the total bandwidth, the initial value of the bandwidth of all the beams is 250MHz, and the initial value of the power is 100W;
the communication capacity requirement of the wave beam i is Ri, the wave beam capacity is Ci after the power bandwidth is distributed, and the capacity matching rate is defined as
Figure BDA0003122363040000101
The communication capacity requirements of each beam in the input group of beam combinations are respectively as follows: r1=950mbps, R2=430mbps, R3=600mbps, and R4=1480mbps, the power bandwidth allocation calculated according to the method described in this patent is as shown in the following table:
table 2 power bandwidth allocation scheme for first group of beams
Beam numbering Bandwidth (MHz) Power (W)
1 300 157.86
2 100 39.45
3 175 94.47
4 425 97.29
According to the power bandwidth allocation scheme obtained through calculation, the capacity matching rate reaches 95.59%, and is improved by about 22% compared with the capacity matching rate of 72.92% in a fixed average allocation mode.
The same method is used to calculate the power bandwidth allocation scheme for the other 7 sets of beams.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above.
Those skilled in the art will appreciate that those matters not described in detail in the present specification are well known in the art.

Claims (8)

1. A joint allocation method for high-throughput satellite system-level power and bandwidth resources is characterized by comprising the following steps:
1) Sequentially selecting each wave beam combination to obtain the current bandwidth value B of each wave beam in the wave beam combination i While obtaining the communication capacity requirement R of each beam i (ii) a According to the capacity requirement R of each beam i Sum bandwidth value B i Determining the spectral utilization efficiency eta of each beam i ；i∈[1,N](ii) a The satellite downlink comprises K beam combinations, and each beam combination comprises N beams; wherein N is a positive integer, and the value range of N is 4-8; k is a positive integer and is greater than or equal to 8;
2) Spectral utilization η of each beam according to step 1) i And link budget, respectively calculating power value P of each beam i ；
3) According to the sum of the power of all beams in each beam combination
Figure FDA0003693716000000011
Judging whether the allocation condition is met, if so, directly setting the current bandwidth value B of each beam i And the power value P of each beam obtained in step 2) i Outputting the power bandwidth allocation scheme to a satellite transponder system, otherwise, entering step 4);
4) According to DVB protocol, determining the spectrum utilization efficiency of each beam corresponding to different modulation coding modes,obtaining the spectrum utilization efficiency eta of the wave beam i under the modulation coding mode j ij So as to obtain the corresponding power value P of the beam i under the modulation coding mode j ij ；
5) According to the step 4), the spectrum utilization efficiency eta of the wave beam i under the modulation coding mode j ij Calculating the limit bandwidth B of the wave beam i in the modulation coding mode j ij ；
6) According to the limit bandwidth B of the wave beam i obtained in the step 5) when the wave beam is modulated in the coding mode j ij Extracting B or less from the optional bandwidth set B ij The bandwidth elements form a bandwidth set b of the beam i under the modulation coding mode j ij ；
7) According to the bandwidth set b of all the wave beams under different modulation coding modes ij Obtaining the bandwidth combination of all the beams;
8) According to all bandwidth combinations obtained in the step 7), respectively obtaining each element B in each bandwidth combination ip Corresponding power value P ip Accumulating to obtain the sum of the powers of all beams corresponding to each bandwidth combination
Figure FDA0003693716000000021
Simultaneously, respectively obtaining the sum of all elements in each bandwidth combination as the sum of all bandwidths corresponding to each bandwidth combination
Figure FDA0003693716000000022
p is the modulation coding mode corresponding to the element;
9) Screening to obtain the sum of all powers
Figure FDA0003693716000000023
Less than or equal to the total power P total And sum of bandwidths
Figure FDA0003693716000000024
Less than or equal to the total bandwidth B total As an optional combination;
10 Respectively calculating the capacity error D of each optional combination;
11 Selecting the selectable combination with the minimum D as the beam combination result to obtain the bandwidth value B of each beam in the beam combination result ip Sum power value P ip Outputting the power bandwidth allocation scheme to a satellite transponder system;
12 Repeating the steps 1) to 11) for K times to obtain a power bandwidth distribution scheme of K x N wave beams of a satellite downlink, and outputting the power bandwidth distribution scheme to a satellite transponder system;
step 3) judging whether the distribution condition is met, specifically:
if it is
Figure FDA0003693716000000025
Judging that the distribution condition is met; otherwise, judging that the distribution condition is not met;
wherein, P total Is the total power;
step 10) calculating the capacity error D of each selectable combination, specifically:
for any one of the optional combinations, according to each element B in the optional combination ip Spectrum utilization ratio eta corresponding to each element ip And according to the communication capacity requirement R of the corresponding wave beam of the element i Determining a capacity error D of the selectable combination;
Figure FDA0003693716000000026
and p is the modulation coding mode corresponding to the element.
2. The method of claim 1 for joint allocation of high throughput satellite system-level power and bandwidth resources, wherein: step 1) determining the spectral efficiency η of each beam i The method specifically comprises the following steps:
η i ＝R i /B i 。
3. the joint high throughput satellite system-level power and bandwidth resource allocation method according to claim 1, wherein: step 5) calculating the beam i on the modulation coding sideUltimate bandwidth B in equation j ij The method specifically comprises the following steps:
B ij ＝R i /η ij 。
4. the joint high throughput satellite system-level power and bandwidth resource allocation method according to claim 1, wherein: step 6) the selectable bandwidth set B is specifically:
B＝{b 1 ，b 2 ，b 3 ，…，b n }; value range b n ∈(0，2500MHz)。
5. The joint high throughput satellite system-level power and bandwidth resource allocation method according to claim 4, wherein: the step length value range of two adjacent elements in the optional bandwidth set B is [ 1-50 MHz ].
6. The method of claim 1 for joint allocation of high throughput satellite system-level power and bandwidth resources, wherein: the bandwidth set b ij The number of the middle element is k ij 。
7. The method of claim 6, wherein the joint allocation of high throughput satellite system level power and bandwidth resources comprises: set of bandwidths b ij The maximum value of the middle element is less than or equal to the limit bandwidth B ij 。
8. The method according to claim 6, wherein the bandwidth combination of all beams in step 7) is specifically:
71 Obtaining the bandwidth set b of the wave beam i under any modulation coding mode according to the wave beam number ij Any one of the elements, constituting a bandwidth combination;
72 Repeat step 71)
Figure FDA0003693716000000031
And thirdly, carrying out permutation and combination to obtain all bandwidth combinations.
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