CN113543183B - Co-existence wireless body area inter-network cooperation method, system and storage medium - Google Patents

Co-existence wireless body area inter-network cooperation method, system and storage medium Download PDF

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CN113543183B
CN113543183B CN202110648115.1A CN202110648115A CN113543183B CN 113543183 B CN113543183 B CN 113543183B CN 202110648115 A CN202110648115 A CN 202110648115A CN 113543183 B CN113543183 B CN 113543183B
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wban
source
relay
collaboration
payment
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CN113543183A (en
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王静贤
全子傲
张景
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China Academy of Electronic and Information Technology of CETC
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China Academy of Electronic and Information Technology of CETC
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/32—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using wireless devices
    • G06Q20/325—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using wireless devices using wireless networks
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
    • G16H40/60—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
    • G16H40/67—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for remote operation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/06—Testing, supervising or monitoring using simulated traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/22—Negotiating communication rate

Abstract

The invention discloses a method, a system and a storage medium for cooperation among coexisting wireless body area networks, wherein the method comprises a relay WBAN and a plurality of source WBANs, the relay WBAN is configured to send data from the plurality of source WBANs to an Access Point (AP), and the cooperation method comprises the following steps: after the relay WBAN establishes communication connection with a plurality of source WBAN, determining available collaboration time length of each source WBAN according to a first profit function through the relay WBAN; and determining a second benefit function by any source WBAN according to the available collaboration time length and the payment amount of other source WBANs, and determining a response strategy of the source WBAN according to the second benefit function. The method of the invention can ensure the self business requirement when the relay WBAN provides the cooperative service.

Description

Co-existence wireless body area inter-network cooperation method, system and storage medium
Technical Field
The present invention relates to the field of wireless body area networks, and in particular, to a method, a system, and a storage medium for co-operating between coexisting wireless body area networks.
Background
As a new medical model, wireless body area networks ((Wireless Body Area Network, WBAN)) offer opportunities and promise for reform in the traditional medical industry. The wireless body area network consists of a group of biomedical sensors arranged on a human body or implanted in the human body and a coordinator, wherein the coordinator collects physiological parameters sensed by sensor nodes and transmits the physiological parameters to a remote control center through WiFi, LTE,5G and other networks. However, when the coordinator fails or the user is not in the network service area, physiological data of the user cannot be transmitted to the remote control center in time, and the interruption of monitoring is intolerable to the wireless body area network for transmitting important physiological parameters of the human body, and even endangers the life safety of the user. There is a need for a method of enabling cooperative communication between wireless body area networks.
Disclosure of Invention
The embodiment of the invention provides a method, a system and a storage medium for cooperation among coexisting wireless body area networks, which are used for achieving cooperative communication through a relay WBAN and a source WBAN under the condition of a coordinator failure, and improving data transmission efficiency while guaranteeing respective service requirements.
According to the method for cooperation between coexisting wireless body area networks disclosed in the present embodiment, the coexisting wireless body area networks WBAN include a relay WBAN and a plurality of source WBANs, the relay WBAN is configured to send data from the plurality of source WBANs to an access point AP, the cooperation method includes:
after the relay WBAN establishes communication connection with a plurality of source WBAN, the relay WBAN determines the available total cooperative time length of the source WBAN according to a first profit function;
and determining a second benefit function by any source WBAN according to the available total cooperative time length and the payment amount of other source WBANs, and determining a response strategy of the source WBAN according to the second benefit function.
In an embodiment, before the relay WBAN determines the total available collaboration duration of the source WBAN according to a first benefit function, the collaboration method further includes:
counting the user scale and the connection parameters of a source WBAN through the relay WBAN;
wherein the connection parameters include at least one of: the maximum transmission rate of each source WBAN on the corresponding channel and the weight factor corresponding to each source WBAN.
In an embodiment, before the relay WBAN determines the total available collaboration duration of the source WBAN according to a first benefit function, the collaboration method further includes:
determining satisfaction degree of the relay WBAN on resource allocation according to the minimum required data rate of the relay WBAN;
the first revenue function is established based on the satisfaction, the equivalent revenue per satisfaction, and the payout value of each of the source WBANs.
In an embodiment, the relay WBAN determining the total available collaboration duration of the source WBAN according to a first benefit function includes:
and establishing an optimization model of the available collaboration time length of the relay WBAN with the maximum profit of the relay WBAN as a target.
In an embodiment, the determining, by the source WBAN, a second profit function according to the available collaboration time length and payment amounts of other source WBANs, the response policy of the source WBAN includes:
establishing a second profit function of any source WBAN according to the equivalent income of the unit data rate of any source WBAN, the corresponding payment value, the available time length and the payment amount of other source WBANs;
establishing a preferred payment strategy of any source WBAN within the range of the available total collaboration duration with the maximum profit of the second profit function of any source WBAN as a target;
and determining the payment value of any source WBAN and the obtained cooperative time length according to the optimization model of the available cooperative time length of the relay WBAN and the preferred payment strategy.
The co-existence wireless body area internetwork cooperation system disclosed by the embodiment comprises an access point, a relay WBAN and a plurality of source WBANs;
the relay WBAN is configured to send data from a number of the source WBANs to an access point AP;
the relay WBAN is configured to determine an available total collaboration duration of the source WBAN according to a first benefit function after establishing a communication connection with a number of the source WBAN;
any of the source WBAN's is configured to determine a second benefit function based on the total available collaboration time period and the collaboration time periods of other source WBAN's to determine its best response strategy based on the determining.
According to one disclosed embodiment, a computer readable storage medium stores a computer program thereon, which when executed by a processor implements the steps of the aforementioned co-existence wireless body area network cooperation method.
The embodiment of the invention plays games through the income function between the source WBAN and the relay WBAN, can ensure the minimum requirement of the own relay WBAN on the data transmission rate, and the collaboration time obtained by each source WBAN is influenced by the self payment amount and the payment amount of other source WBAN, thereby ensuring the own business requirement while providing collaboration service.
The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present invention more readily apparent.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
fig. 1 is a schematic basic structure diagram of a coexisting wireless body area network according to an embodiment of the present disclosure.
Fig. 2 is a basic flowchart of a co-existence wireless body area network-to-network cooperation method according to an embodiment of the present disclosure.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
For the problem of monitoring interruption caused by a failure of a coordinator in a body area network or a lack of a user in a network service area, embodiments of the present disclosure provide a method for co-existence of a wireless body area network, where the co-existence wireless body area network may include a relay WBAN and a plurality of source WBANs, where the relay WBAN is configured to send data from the plurality of source WBANs to an access point AP, where a communication connection is established between the relay WBAN and the plurality of source WBANs. In this embodiment, as shown in fig. 1, when the coordinator fails or the user is not in the network service area, a communication connection may be established between the source WBAN and the relay WBAN, and data of the source WBAN may be transmitted to the AP through the relay WBAN. As shown in fig. 2, the collaboration method proposed in this embodiment may start with: step S201, the relay WBAN determines the available total cooperative time length of the source WBAN according to a first profit function; step S202, any source WBAN determines a second benefit function according to the available total collaboration time length and the payment amounts of other source WBANs, and determines its response policy according to the second benefit function. As an alternative payment method, the source WBAN may pay the relay WBAN for pre-allocated virtual money or virtual money-like data, thereby enabling a game to be formed between the source WBAN and the relay WBAN and each source WBAN, thereby improving the effect of the collaborative service.
In some embodiments, as shown in FIG. 1, the number of sources WBAN may be set to N, S i I=1, 2,..n represents the nearest neighbor body area network as a relay WBAN, denoted R, communicating with an Access Point (AP). f (f) i And g are each from S i The channel gains to R and from R to AP can be defined asg＝κd RA -α . Wherein, gamma i ,/>And kappa is a weight factor,>is S i And R, d RA Is the distance between R and AP and α represents the path loss factor. In order not to lose generality, it may be assumed in this example that the channel gain is fixed during the considered period.
In this example, it is assumed that the transmission powers of the source and the relay are P, respectively S And P R Based on shannon formula, S i And the maximum data rate at unit bandwidth for R is represented as follows:
wherein r is i And r 0 Respectively represent S i And R, N 0 Representing gaussian white noise power.
The total transmission duration may be normalized to 1 in the scheme based on this embodiment, and the relay WBAN as the leader first decides the available total cooperative duration t allocated to the multiple source WBANs, and the duration (1-t) of transmitting data to the AP, to maximize its own transmission satisfaction. And then, each source WBAN decides the collaboration time length and the corresponding payment amount of each purchase according to the total time length available and the demands of other competing source WBAN for the collaboration time length.
The embodiment of the invention plays games through the income function between the source WBAN and the relay WBAN, can ensure the minimum requirement of the own relay WBAN on the data transmission rate, and the collaboration time obtained by each source WBAN is influenced by the self payment amount and the payment amount of other source WBAN, thereby ensuring the own business requirement while providing collaboration service.
In an example, before the determining, by the relay WBAN, the total available collaboration time period for each of the source WBANs according to the first benefit function, the collaboration method further includes: counting the user scale and the connection parameters of a source WBAN through the relay WBAN; wherein the connection parameters at least comprise the followingOne of the following: the maximum transmission rate of the source WBAN on the corresponding channel and the weight factor corresponding to the source WBAN. Specifically, the user scale N of the source WBAN can be counted through the relay WBAN, and the maximum data transmission rate r of each source WBAN on a corresponding channel i ，
In an example, before the determining, by the relay WBAN, the available collaboration time period of each of the source WBANs according to the first benefit function, the collaboration method further includes:
determining satisfaction degree of the relay WBAN on resource allocation according to the minimum required data rate of the relay WBAN;
the first revenue function is established based on the satisfaction, the equivalent revenue per satisfaction, and the payout value of each of the source WBANs.
Specifically, in this embodiment, the relay WBAN determines the cooperative time length; based on the advance knowledge of the best response of the source WBAN, the relay WBAN acts as a leader to determine the best collaboration duration to maximize its utility. The first benefit function of the relay WBAN is defined as follows:
wherein r is min Is the minimum requirement for the data rate by the relay WBAN.Is the satisfaction of relay WBAN to resource allocation, lambda R Is the equivalent revenue per unit of satisfaction; c i Is S i The second half of the function represents revenue derived from the source WBAN.
In an example, the relay WBAN determining the total available collaboration duration of the source WBAN according to a first benefit function includes: and establishing an optimization model of the available total cooperative time length of the relay WBAN with the maximum profit of the relay WBAN as a target.
Specifically, based on the foregoing first benefit function, the relay WBAN may determine that the optimal collaboration duration is:
wherein the method comprises the steps of
In an example, the determining, by the any one of the source WBAN, a second benefit function according to the available collaboration time period and collaboration time periods of other source WBANs, the response policy of the source WBAN includes:
establishing a second profit function of any source WBAN according to the equivalent income of the unit data rate of any source WBAN, the corresponding payment value, the available total collaboration time length and the collaboration time length of other source WBANs;
establishing a preferred payment strategy of any source WBAN within the range of the available total collaboration duration with the maximum profit of the second profit function of any source WBAN as a target;
and determining the payment value of any source WBAN and the obtained cooperative time length according to the optimization model of the available cooperative time length of the relay WBAN and the preferred payment strategy.
Specifically, in this example, the current source WBANs is based on the collaboration time period determined by the relay WBAN and the payment amounts of the other source WBANs i ,And (5) formulating an optimal response strategy. S is S i ,/>The benefit function of (2) is defined as follows:
wherein lambda is S Is the equivalent revenue per unit data rate. S according to formula (5) i Is proportional to its payment amount. By maximizing the revenue function of the source WBAN, the best payment policy formulated by the source WBAN for the collaboration duration t is as follows:
based on this, the stonelberg game equalization solution (t) of the model of the embodiment of the present disclosure can be determined according to formulas (4), (6) * ,c * ) Wherein t is * Optimal collaboration time length, c, determined for relay WBAN * A vector of optimal payment amounts for each source WBAN.
When the cooperative time length allocated by the relay WBAN is longer, the payment amount of each source WBAN is also increased, and at the moment, higher data transmission rate can be purchased through the increase of the unit payment amount, so that the income of the user is greatly increased.
Case one
Method analysis d based on the present disclosure RA Impact on gaming strategy and utility. Setting n=5, according to the method of the present disclosure:
the coordinated duration of relay WBAN allocation is a function of distance d RA As the extended distance results in a reduced data rate for the relay, and thus the relay requires more time to improve its satisfaction.
As the profit obtained per unit of payment amount decreases, the source WBAN reduces the payment to maximize its utility.
Both the source WBAN and the relay WBAN have reduced profits because the payment amount of the source WBAN is reduced and the resulting data transmission rate is reduced; and the total revenue that the relay WBAN receives from the source WBAN is reduced.
Case two
The impact of the size N of the source WBAN user is analyzed based on the methods of the present disclosure. Setting d RA =50m, according to the method of the present disclosure:
as the number of source WBANs increases, the relay WBAN needs to allocate more collaboration time to meet the growing demands of the source WBAN.
When the number of source WBANs is not very large (less than three), the source WBAN may increase its payment value. Since in this case the profit obtained per payment value is higher. However, when the number of source WBANs increases (more than three), the available time resources are insufficient, and thus the source WBAN reduces payments to reduce costs.
The utility of relaying WBAN increases as the number of source WBAN increases such that the total payout increases. But the average effectiveness of the source WBAN is gradually decreasing as more source WBAN results in more aggressive competition.
Case three
AnalysisInfluence of the optimal response strategy for the individual source WBAN. Setting n=10, d RA =50m, andaccording to the method of the present disclosure:
a source WBAN having a smaller distance from the relay WBAN is willing to pay a larger amount for the relay service, whereby the relay WBAN can obtain a larger data rate under the same conditions.
The co-existence wireless body area network cooperation method disclosed by the invention has the following advantages:
the cooperative communication between coexisting wireless body area networks is stimulated by adopting a price-aware time scheduling mechanism, so that the defect that the relay WBAN is supposed to provide service voluntarily in the existing research is overcome.
When the utility function of the relay WBAN is designed, the minimum requirement of the relay WBAN on the data transmission rate is considered, so that the service requirement of the relay WBAN is guaranteed while the cooperative service is provided.
When the utility function of the source WBAN is designed, the competition relationship among the source WBANs is considered, and the collaboration time obtained by each source WBAN is influenced by the payment amount of the source WBAN and the payment amount of other source WBANs, so that the utility function meets the market competition rule.
The embodiment also discloses a co-existence wireless body area internetwork cooperation system, which comprises an access point, a relay WBAN and a plurality of source WBANs;
the relay WBAN is configured to send data from a number of the source WBANs to an access point AP;
the relay WBAN is configured to determine an available total collaboration duration of the source WBAN according to a first benefit function after establishing a communication connection with a number of the source WBAN;
any of the source WBAN is configured to determine a second benefit function based on the total available collaboration time period and the collaboration time periods of other source WBAN to determine its own response policy based on the determination.
The embodiment also discloses a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program realizes the steps of the co-existence wireless body area network cooperation method when being executed by a processor.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.

Claims (4)

1. A method of co-existence wireless body area network, wherein the co-existence wireless body area network WBAN comprises a relay WBAN and a number of source WBANs, the relay WBAN configured to transmit data from the number of source WBANs to an access point AP, the method comprising:
after the relay WBAN establishes communication connection with a plurality of source WBAN, the relay WBAN determines the available total cooperative time length of the source WBAN according to a first profit function;
any source WBAN determines a second benefit function according to the available total cooperative time length and the payment amount of other source WBAN, and determines a response strategy of the source WBAN according to the second benefit function;
before the relay WBAN determines the total available collaboration duration of the source WBAN according to a first profit function, the collaboration method further includes:
determining satisfaction degree of the relay WBAN on resource allocation according to the minimum required data rate of the relay WBAN;
establishing the first benefit function according to the satisfaction degree, the equivalent income of unit satisfaction degree and the payment value of each source WBAN, wherein the first benefit function of the WBAN is relayedThe definition is as follows:wherein,is the minimum requirement for the data rate of the relay WBAN, < >>Is how satisfied the relay WBAN is with the resource allocation,is the equivalent income per unit satisfaction, +.>Is->Is a payment value of (a); the relay WBAN determining an available total collaboration duration of the source WBAN according to a first benefit function includes:
establishing an optimization model of the available total cooperative time length of the relay WBAN by taking the maximum profit of the relay WBAN as a target, wherein the optimal cooperative time length determined by the relay WBAN is as follows:
wherein->，/>The method comprises the steps of carrying out a first treatment on the surface of the The determining, by the any source WBAN, a second benefit function according to the available total collaboration time length and payment amounts of other source WBANs, to determine a response policy of the source WBAN according to the second benefit function includes:
establishing a second profit function of any source WBAN according to the equivalent income of the unit data rate of any source WBAN, the corresponding payment value, the available total collaboration duration and the payment amount of other source WBANs;
establishing a payment strategy of any source WBAN within the range of the available total collaboration duration with the maximum profit of the second profit function of any source WBAN as a target;
determining a payment value and an obtained collaboration time length of any source WBAN according to an optimization model of available collaboration time lengths of the relay WBANs and the payment policy, and based on the collaboration time length determined by the relay WBAN and payment amounts of other source WBANs, determining a current source WBAN by the relay WBANThe method comprises the steps of formulating an optimal response strategy to meet the following conditions: />Wherein (1)>Equivalent revenue per unit data rate;
source WBAN for collaboration durationtAnd (3) formulating an optimal payment strategy:wherein->Optimal collaboration time length determined for relay WBAN, < ->A vector of optimal payment amounts for each source WBAN.
2. The co-existence wireless body area network-to-network cooperation method of claim 1, wherein before the relay WBAN determines the total available cooperation period of the source WBAN according to a first benefit function, the cooperation method further comprises:
counting the user scale and the connection parameters of a source WBAN through the relay WBAN;
wherein the connection parameters include at least one of: the maximum transmission rate of each source WBAN on the corresponding channel and the weight factor corresponding to each source WBAN.
3. The co-existence wireless body area network cooperation system is characterized by comprising an access point, a relay WBAN and a plurality of source WBAN;
the relay WBAN is configured to send data from a number of the source WBANs to an access point AP;
the relay WBAN is configured to determine an available total collaboration duration of the source WBAN according to a first benefit function after establishing a communication connection with a number of the source WBAN;
any one of the source WBAN is configured to determine a second benefit function according to the available total collaboration time length and the collaboration time lengths of other source WBAN, so as to determine an own optimal response strategy according to the second benefit function;
before the relay WBAN determines the available total collaboration duration of the source WBAN according to a first benefit function, the relay WBAN further includes:
determining satisfaction degree of the relay WBAN on resource allocation according to the minimum required data rate of the relay WBAN;
establishing the first benefit function according to the satisfaction degree, the equivalent income of unit satisfaction degree and the payment value of each source WBAN, wherein the first benefit function of the relay WBAN is defined as follows:wherein,is the minimum requirement for the data rate of the relay WBAN, < >>Is how satisfied the relay WBAN is with the resource allocation,is the equivalent income per unit satisfaction, +.>Is->Is a payment value of (a); the relay WBAN determining an available total collaboration duration of the source WBAN according to a first benefit function includes:
establishing an optimization model of the available total cooperative time length of the relay WBAN by taking the maximum profit of the relay WBAN as a target, wherein the optimal cooperative time length determined by the relay WBAN is as follows:
wherein->，/>The method comprises the steps of carrying out a first treatment on the surface of the The determining, by the any source WBAN, a second benefit function according to the available total collaboration time length and payment amounts of other source WBANs, to determine a response policy of the source WBAN according to the second benefit function includes:
establishing a second profit function of any source WBAN according to the equivalent income of the unit data rate of any source WBAN, the corresponding payment value, the available total collaboration duration and the payment amount of other source WBANs;
establishing a payment strategy of any source WBAN within the range of the available total collaboration duration with the maximum profit of the second profit function of any source WBAN as a target;
determining a payment value and an obtained collaboration time length of any source WBAN according to an optimization model of available collaboration time lengths of the relay WBANs and the payment policy, and based on the collaboration time length determined by the relay WBAN and payment amounts of other source WBANs, determining a current source WBAN by the relay WBANThe method comprises the steps of formulating an optimal response strategy to meet the following conditions: />Wherein (1)>Equivalent revenue per unit data rate;
source WBAN for collaboration durationtAnd (3) formulating an optimal payment strategy:wherein the method comprises the steps ofOptimal collaboration time length determined for relay WBAN, < ->A vector of optimal payment amounts for each source WBAN.
4. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the co-existence wireless body area network cooperation method according to claim 1 or 2.
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