KR100516121B1 - System and method for modeling service of quality of mobile ad-hoc network - Google Patents

Abstract

The present invention relates to a service quality modeling system and method thereof for a mobile Ad-hoc network.

The quality of service modeling system and method of the mobile ad-hoc network include: location search of the terminal in the network layer, determination of available per hop behavior (PHB), mapping of differentiated service code point (DSCP) values to the PHB, It is responsible for the QoS Provisioning Policy, such as the determination of queuing parameters, and the Quality of Service media access control layer (QoS MAC) is based on the traffic ID (TID) generated based on the DSCP value of the IP packet. It is responsible for the transmission up to the hop.The edge terminal generates DSCP value and transmits by mapping the appropriate TID based on the interhop hop method (PHB) related to the DSCP value. As a result, TID mapping is adjusted and transmitted to ensure the quality of service to end users. In this way, since the quality of service can be provided in the Internet connection and the end-user traffic transmission using the mobile terminal, it can contribute to the activation of wireless mobile communication by the mobile terminal.

Description

Quality of Service Modeling System and Its Method in Mobile AV-ｈｏｃ Networks {SYSTEM AND METHOD FOR MODELING SERVICE OF QUALITY OF MOBILE AD-HOC NETWORK}

The present invention relates to a service quality modeling system and a method thereof for a mobile Ad-hoc network, and more particularly, to a differentiated service (DiffServ) model, which is one of Internet protocol (IP) based service quality providing models in a wired network. The present invention relates to a service quality modeling of a mobile Ad-hoc network that is adapted to fit the environment of a -hoc network.

The use of the Internet, which has been made in a limited space via wires, is being developed to be freely used without limitation of time and space as various mobile communication devices have appeared with the development of information and communication technology.

As the demand for continuous transmission of multimedia data using wireless terminals increases, mobile ad-hoc communication enables direct communication between mobile terminals even in areas where base stations or access points (APs) are not installed. Networks (Mobile Ad-hoc Networks, MANETs) are attracting attention.

A mobile Ad-hoc network is a network that is autonomously configured between mobile nodes without the help of a fixed base network, which gives autonomy and flexibility to the network.

In mobile ad-hoc networks, as in wired networks, the provision of quality of service is an important service requirement in the communication between end users.

Mobile Ad-hoc network is a service for existing backbone network because all terminals are mobile, link capacity changes frequently, there is no limited power and fixed infrastructure, and other characteristics are different from existing wired network. A different approach is needed from how quality is provided.

Differentiated Services (DiffServ) is a model that provides only a limited number of integrated service classes to provide better service quality and network scalability than wired backbone networks.

In other words, differentiated services do not provide different quality of service for each IP packet flow, but provide quality of service for each set using a set of several IP packet flows as a unit.

Differentiation services are required by edge routers and core routers. The edge routers aggregate Internet traffic to the core routers, and the core routers carry the traffic from multiple edge routers to the backbone.

Edge routers perform all of the complex traffic shaping, while core routers perform very simple packet forwarding inside the network.

The perimeter router of the differentiated service network distinguishes how IP packets are forwarded from the intermediate pass-through routers, and the IP packets are entered in the Type of Service (IPS) field in the case of IPv4 and in the Traffic Class field in the case of IPv6. Display.

1 illustrates a structure of a differentiated service field in a differentiated service.

As shown in FIG. 1, the differentiated service field is a ToS field indicating an IP packet and is defined as a differentiated service code point (DSCP).

The perimeter router of the differentiated service network performs the forwarding function by the appropriate Per Hop Behavior (PHB) with the DSCP value set to a specific value. The inter-hop processing method defines information for routers to process packets between hops in a multi-hop network and is used to indicate queuing, scheduling, and discarding priorities.

In the hop-to-hop processing in differentiated services, AF PHB, EF PHB, etc. are defined in addition to the best service.

Expedited Forwarding PHB (EF PHB) is a virtual leased line service that provides end-to-end service with low loss rate, delay, and jitter, and guarantees a certain bandwidth. Assured Forwarding PHB (AF PHB) is lower than EF PHB but provides higher quality of service than best service.

The AF PHB defines 12 DSCPs that are divided into four classes according to their relative priorities, and three kinds of discarding priorities are applied to each class.

Since differentiation service is designed for wired Internet backbone network, there are various problems in applying differentiation service directly to mobile Ad-hoc network.

Although the mobile ad-hoc network differs considerably from the backbone network in size, it has similarities in functionality to the routers of the backbone network. In a mobile ad-hoc network, each node plays two roles, a host and a router. Ad-hoc nodes as routers are responsible for sending packets to other nodes as in the Internet backbone.

As described above, the mobile Ad-hoc network is similar to the Internet backbone network in terms of node function. Therefore, if the differentiated service model is modified and applied to the characteristics of the mobile Ad-hoc network, a service quality model suitable for the mobile Ad-hoc network can be developed.

However, in the mobile Ad-hoc network, the quality of the wireless link is easily changed according to the surrounding environment, so it is very difficult to obtain and manage link state information, and the mobility of the terminal makes the strategy for supporting the quality of service more complicated than the wired backbone network. There is a problem.

Due to this problem, resources of the Ad-hoc network terminals on the premise of mobility are limited, and thus there is a problem that it becomes more difficult to implement the terminal for supporting the quality of service.

The technical problem to be achieved by the present invention is to design a lightweight service quality model structure by applying the differentiated service model of the wired backbone network in consideration of the characteristics of the mobile Ad-hoc network, mobile Ad-hoc provides a service quality between end users It is to provide a service quality modeling system and method of the network.

In order to solve this problem, the present invention applies a modified service (Differentiated Service, DiffServ) model, which is one of the Internet Protocol (IP) based service quality providing models in a wired network, to be adapted to the environment of a mobile Ad-hoc network. .

A service quality modeling system of a mobile Ad-hoc network according to a first aspect of the present invention is a lower layer in a service quality modeling system of a mobile Ad-hoc network which ensures communication quality between terminals having mobility. Differentiating Service Code Point (DSCP) values are assigned to IP packets inputted according to the class, and after generating a traffic identifier (TID) based on the inter-hop behavior processing associated with the DSCP value, the IP packets are sequentially transmitted. Edge terminal; And a core terminal receiving the IP packets indicated by the DSCP value transmitted from the edge terminal, adjusting the TID mapping according to link characteristics, and transmitting the IP packet to an arbitrary terminal through a network.

The edge terminal,

A destination discriminator for transmitting the IP packet to a higher layer or determining a transmission to another terminal based on the destination address of the IP packet; A packet classifier for determining a class of the IP packet by determining a service quality level required by the IP packet transmitted for transmission from the destination discriminator to another terminal; A packet conditioner that measures the amount of resources consumed by the IP packet, by assigning a DSCP value to the header of the IP packet according to the packet class determined by the packet classifier; A routing core for performing a route search for transmission of an IP packet to which the DSCP value is assigned by the packet conditioner; An inter-hop behavior processor for inspecting the DSCP value assigned to the IP packet by the packet controller to perform a corresponding inter-hop behavior processing operation, and determining an output order of IP packets belonging to the inter-hop behavior processing scheme; And a TID selector for generating a TID required for a transmission request to the next hop of the corresponding IP packet by the inter-hop behavior processing scheme mapped from the DSCP value assigned to the IP packet in the packet conditioner.

The destination discriminator transmits the IP packet to a higher layer if the destination address of the IP packet is the same as its IP address, and if the destination address of the IP packet is different from its IP address, forwards the IP packet to another terminal. It is desirable to send to the packet classifier for transmission.

The packet conditioner includes: a classifier classifying according to the class of the IP packet; A marker for assigning an appropriate DSCP value to a header of the IP packet according to a classification result of the classifier; A meter (METER) for measuring an amount of resources consumed by IP packets transmitted through the classifier; And a SHAPER / POLICER for outputting the IP packet marked with the DSCP value to the routing core according to the processing result of the marker or the meter.

The core terminal,

A destination discriminator for determining whether a destination address of the IP packet transmitted from the edge terminal matches the IP address of the core terminal; A routing core for performing a route search for transmission of the IP packet when the destination address of the IP packet is different from the IP address of the core terminal in the destination discriminator; In order to transmit the IP packet according to the path searched by the routing core, a DSCP value assigned to the IP packet is examined to perform a corresponding inter-hop behavior processing operation, and an output order of IP packets belonging to the inter-hop behavior processing scheme. An inter-hop action processor to determine; And a TID selector for generating a TID required for a transmission request to the next hop of the corresponding IP packet by the inter-hop behavior processing scheme mapped from the DSCP value of the IP packet transmitted from the inter-hop behavior processor.

The hop-to-hop action processor,

An integrated behavior classifier that examines a DSCP value assigned to an IP packet by the packet conditioner and classifies the IP packet according to a corresponding hop-thaw processing scheme (PHB); A buffer manager which applies a discarding probability corresponding to traffic in an AF (Assured Forwarding) PHB when a link congestion occurs; And a scheduler that guarantees a bandwidth required for each PHB classified by the integrated behavior classifier and determines an output order of packets belonging to the PHB.

The TID selector is configured to classify a traffic category ID (Traffic Categories ID, TCID) defined as a user priority having a value of 0 to 7 and a parameter type traffic class having a value of 8 to 15. It is preferably classified as a traffic stream ID (TSID).

The TID selector generates a TSID between 0 and 15 when the terminal has a medium access control (MAC) layer of quality of service support by a PHB mapped from the DSCP value assigned to the IP packet and sends a packet to a lower layer. If the terminal has a service quality non-supported media access control layer or is out of the service quality support basic service area, it is preferable to generate a TCID in the range of 0 to 7 and transmit the packet to the best service.

A service quality modeling method of a mobile Ad-hoc network according to a second aspect of the present invention is a service quality modeling method of a mobile Ad-hoc network which ensures communication between terminals having mobility, while ensuring quality of service. A) Determining, by the edge terminal, whether the IP packet is forwarded to the next hop by using destination addresses of IP packets input from a lower layer; B) In the case of forwarding the IP packet to the next hop in step A), the IP packets are assigned differentiation service code point (DSCP) values according to their ranks, and are based on the inter-hop behavior processing (PHB) associated with the DSCP value. Generating the TID and sequentially transmitting the IP packets; And C) transmitting the IP packet to the corresponding destination address through the network by adjusting the TID mapping according to the link characteristic by the core terminal receiving the IP packets indicated by the DSCP value transmitted from the edge terminal in step B). Include.

Step A) is

Iii) if the destination address of the IP packet is the same as the IP address of the edge terminal itself, sending the IP packet to a higher layer; And ii) forwarding the IP packet to the next hop if the destination address of the IP packet is different from the IP address of the edge terminal itself.

In the step A), when the IP packet is generated at the edge terminal, the edge terminal may operate as an end user to forward the IP packet to the next hop.

In the step B), it is preferable to determine the service level required by the IP packet to determine the class of the corresponding IP packet, and to determine the DSCP value according to the class of the IP packet.

In step B), the DSC packet is assigned to the IP packet, the IP packet is classified according to the inter-hop processing method (PHB), and the packet processing is performed by applying the discard probability corresponding to the traffic in each PHB. In this case, it is desirable to determine the output order of packets belonging to each PHB.

The PHB includes: an EF PHB, which is a traffic stream with a high priority processing request for quality of service for an end user; An AF PHB having priority lower than that of the EF PHB and having a grade and a drop rank according to a link state; And a best service PHB which is best service traffic having a priority processing lower than the AF PHB.

In step B) and step C), i) if the PHB is interpreted from the DSCP value of the IP packet and the EF PHB is mapped, the TID is mapped to a TSID value having a value of 8 to 15. Sending a packet to the terminal; Ii) if the IP packet is an AF PHB, transmitting the packet to a MAC layer by mapping the TID to a TSID value lower than the TSID value of step iii); And iv) if the IP packet is a best service PHB, mapping the TID to a TCID value having a value of 0 to 7 and transmitting the packet.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention. Like parts are designated by like reference numerals throughout the specification.

First, a service quality modeling system of a mobile Ad-hoc network according to an embodiment of the present invention will be described in detail with reference to FIGS. 2 and 3.

FIG. 2 illustrates the configuration of an edge terminal in a system for modeling a quality of service of a mobile Ad-hoc network according to an embodiment of the present invention, and FIG. 3 illustrates a detailed configuration of a packet conditioner which is a part of FIG. FIG. 4 illustrates a detailed configuration of an inter-hop action processor, which is a part of FIG. 2.

First, as shown in FIG. 2, the edge terminal in the service quality modeling system of the mobile Ad-hoc network according to the embodiment of the present invention includes a destination discriminator 110, a packet classifier 120, a packet conditioner 130, and routing. Core 140, inter-hop behavior processor 150, and TID selector 160.

The destination discriminator 110 determines the processing direction of the packet based on the destination address of the IP packet coming from the MAC layer.

If the destination discriminator 110 of the IP packet is the same as its IP address, the destination determiner 110 transmits the packet to the transport layer because it is the destination of the packet, and if it is not the same as its IP address, the corresponding IP packet Transmits to packet classifier 102 for forwarding to the next hop for transmission to other terminals.

When the destination discriminator 110 transmits an IP packet to the packet classifier 120, the terminal serves as a router.

When the current terminal generates a packet, the IP packet generated in the upper layer passes through the destination discriminator 110 and is immediately transmitted to the packet classifier 120, where the terminal operates as an end user.

As such, the destination discriminator 110 distributes the functions of the packet classifier 120, thereby reducing the time required for the traffic processing procedure on the core terminal 200.

The packet classifier 120 operates only at the edge terminal, and determines the class of the packet by determining the service level required by the IP packet transmitted from the destination discriminator 110.

After determining the service level required by the IP packet, the packet classifier 120 notifies the quality of service policy engine 170 of the determination result, and transmits the IP packet to the packet conditioner 130.

The packet conditioner 140 is a classifier 141, a marker 142, a meter 143, a SHAPER / POLICER 144 in the same manner as a function in a wired backbone network. ) Is included.

The classifier 141 classifies according to the class of the IP packet, the marker 142 assigns an appropriate DSCP value to the header of the corresponding IP packet according to the classification result in the classifier, and the meter 143 is configured to consume the IP packet. Measure the amount of resources.

At this time, transmission of the packet is delayed or discarded in the packet conditioner 130. This procedure can be applied to an existing scheduling method or a queuing algorithm as it is.

The safer / polymerizer 144 outputs an IP packet marked with a DSCP value according to the processing result of the marker 142 and the meter 143.

The routing core 140 performs route search available on the network for the transmission of the requested packet using any of the routing protocols in the mobile Ad-hoc network.

The path search procedure and search algorithm depend on the routing protocol to be applied, but embodiments of the present invention assume that whatever routing protocol is used will work for that routing algorithm.

As shown in FIG. 4, the inter-hop behavior processor 150 includes a behavior aggregation classifier 151, a buffer manager 152, and a scheduler 153.

The integrated behavior classifier 151 examines the DSCP value marked on the IP header by the marker 142 of the packet conditioner 130 and classifies the packet by the corresponding hop-by-hop behavior processing scheme (PHB).

At this time, the PHB has a lower priority than EF PHB, EF PHB, which is a high-priority traffic stream that requires low loss, low delay, low jitter, and a certain level of bandwidth, and requires a quality of service for end users. It can be classified into AF PHB, which is traffic whose class and discarding rank is determined according to the link state, and best service PHB, which is best service traffic having a priority processing lower than AF PHB.

The buffer manager 152 performs a packet processing operation by applying the truncation probability corresponding to the traffic in the AF PHB when link congestion occurs with the integrated behavior classifier 151.

The scheduler 153 guarantees the required bandwidth for each PHB class and determines the output order of packets belonging to the PHB.

At this time, there is one queue for each PHB, and parameters such as the length of the queue required for optimal performance are affected by the scheduling algorithm applied.

The TID selector 160 generates a TID (Traffic ID) required for the transmission request up to the next hop of the packet by the PHB mapped from the DSCP value assigned according to the packet class classified by the packet conditioner 130.

The TID is divided into a traffic category ID (TCID) and a traffic stream ID (TSID) according to the IEEE 802.11e standard that is currently being standardized. TCID is defined as a user priority having a value from 0 to 7, TSID is classified into a traffic class of a parameter type having a value from 8 to 15.

In IEEE 802.11e MAC, the rank parameter value is represented by an integer value from 0 to 15. When the rank parameter has an integer value, the quality of service data is transmitted through the wireless medium, and TID (traffic) is used to control the transmission. identifier) field.

If the rank parameter and the TID field value are 0-7, it is interpreted as a user priority for the MSDU (MAC Service Data Unit) and is processed by the terminal supporting the quality of service. The rank parameters and TID field values 8-15 are interpreted as traffic stream identifiers (TSIDs), which are values corresponding to TSPECs 0-7.

Non-integer rank parameter values are used in non-QoS terminals. The rank parameter of the integer value (ie, TID) is only for quality-of-service terminals within the Quality of Service Basic Service Set (QBSS) or independent Quality of Service Basic Service Set (QoSS). Can be used.

Terminals in QBSS support values from 0 to 15, and terminals in QIBSS can use values from 0 to 7. If the quality of service terminal is outside the QBSS, the terminal operates as a non-quality of service terminal.

For example, the TID selector 160 maps TIDs to TSID values for multimedia traffic such as voice and video to increase the processing order.

As such, the TID selector 160 generates the appropriate TID by the PHB mapped from the DSCP value assigned according to the packet class categorized by the packet conditioner 130 for the packet transmission to guarantee the quality of service, and the lower medium. The access control layer generates a TSID between 0 and 15 under the premise that it supports quality of service (QoS MAC) and transmits it to the lower layer.

TID selector 160, if the terminal has a quality of service unsupported MAC or located outside the QBSS area, MAC automatically maps the value of TSID in the range 0 ~ 15 to TCID in the range 0 ~ 7 and then the best service method Send a packet to

The quality of service processing engine 170 causes the TID selector 160 to generate a new TID according to the traffic profile and link status.

5 is a block diagram illustrating a configuration of a core terminal in a service quality modeling system of a mobile ad-hoc network according to an embodiment of the present invention.

As shown in FIG. 5, the core terminal is similar to the configuration of the edge terminal 100, but does not need the functions of the packet classifier 120 and the packet conditioner 130.

That is, in the IP packet input to the core terminal, the DSCP value is already indicated in the DS field of the IP header, and the destination discriminator 110 only determines whether the destination of the incoming packet is the terminal itself, and the destination of the packet is Otherwise, it is sent directly to the routing core 140.

The routing core then sends to the inter-hop action processor 150 to send traffic along the established path.

When traffic is transmitted according to the packet classification and scheduling procedure by the inter-hop action processor 150, the TID selector 306 generates a new TID from the DSCP value received from the PHB and transmits the new TID to the lower layer.

Although the packet conditioner 130 is responsible for the procedure of marking the DSCP value in the DS field of the IP header according to the traffic type of the packet, the TID selector receives the DSCP value from the inter-hop action processor 150 and uses it. In the case of the core terminal 200, the traffic conditioner function is not necessary, and the DSCP value necessary for generating a new TID on the core terminal 200 needs to be obtained from another element.

In this case, the TID selector 160 of the core terminal receives the DSCP value from the inter-hop action processor 150 at one of the edge terminal 100 and the core terminal 200 to generate a new TID.

As such, since the TID is a parameter applied only to the media control layer, even if the IP packet is transmitted by displaying a DSCP value from the previous terminal, the TID information is no longer valid in the core terminal 200. The TID is newly generated by the quality of service engine 170 according to the link state.

Since the core terminal does not need traffic classification and regulation, its operation is very simple and can be processed quickly.

Next, the operation of the service quality modeling system of the mobile Ad-hoc network according to the embodiment of the present invention will be described in detail with reference to FIG. 6.

6 is a flowchart illustrating a method of generating a TID in a service quality modeling method of a mobile Ad-hoc network according to an embodiment of the present invention.

In the service quality modeling method of the mobile Ad-hoc network according to an embodiment of the present invention, the destination determiner 110 determines the processing direction of the IP packet according to the destination addresses of the IP packets input from the lower layer.

The packet classifier 120 and the packet conditioner 130 of the edge terminal 100 determine the packet class according to the level required by the IP packet, and mark the DSCP value in the header of the IP packet according to the class of the IP packet. . The core terminal 200 directly delivers the IP packet to the routing core 140 without performing the functions of the packet classifier 120 and the packet conditioner 130.

The routing core 140 uses any of the routing protocols to search for available routes on the mobile Ad-hoc network for the transmission of IP packets, and the inter-hop behavior processor 150 marks the DSCP value marked in the header of the IP packets. Classify the IP packet by PHB.

In addition, the inter-hop behavior processor 150 determines the output order of IP packets while guaranteeing the required bandwidth for each PHB class.

As shown in FIG. 6, the TID selector 160 interprets the PHB from the DSCP value received from the inter-hop behavior processor 150, and generates a TID based on this, and transmits the TID to the MAC layer. )

The TID selector 160 checks the type of PHB from the DSCP value of the IP packet and checks whether it is an EF PHB (S2). When an IP packet is an EF PHB, it is a traffic stream having a high processing priority because it requires low loss, low delay, low jitter, and quality of service for an end user requiring a certain amount of bandwidth.

Therefore, the IP packet is transmitted to the MAC layer by mapping to the TSID value (S3, S4). If it is not the EF PHB, the TID selector 160 checks whether the IP packet is an AF PHB (S5).

If the IP packet is an AF PHB, the traffic is lower than the EF PHB but has a higher processing priority than the best service, and is classified and graded according to the link state. Therefore, an appropriate TID is generated according to the corresponding PHB value to generate the MAC layer. (S5, S3, S4).

If the IP packet is not an EF PHB or AF PHB, the TID selector 160 maps to the TCID value having the lowest processing rank since the corresponding IP packet is the best service PHB and directly transmits the best packet to the best service of (S6, S7).

Although the preferred embodiment of the present invention has been described in detail above, the present invention is not limited thereto, and various other changes and modifications are possible.

As such, the service quality modeling system and method of the mobile Ad-hoc network according to the present invention always provide IP for multimedia traffic that requires the guarantee of quality of service between end users when the lower layer always has a service quality support MAC. By mapping the header of the packet to the TSID value and requesting the MAC to process it first, there is an effect that the QoS MAC can process the first hop up to the next hop.

In addition, the service quality modeling system and method thereof of the mobile Ad-hoc network according to the present invention are based on the quality of service such as low loss, low delay, low jitter, and a certain level of bandwidth between end users. The guarantee of the quality of service is provided at the network layer, and the responsibility for transmission to the adjacent terminal is at the MAC layer, thereby providing the service quality between end users.

The service quality modeling system and method of the mobile Ad-hoc network according to the present invention can provide the quality of service in the Internet access and the transmission of traffic between end users using the mobile terminal. There is an effect that can contribute.

1 illustrates a structure of a differentiated service field in a differentiated service.

2 illustrates a configuration of an edge terminal in a service quality modeling system of a mobile ad-hoc network according to an embodiment of the present invention.

FIG. 3 illustrates a detailed configuration of a packet conditioner which is a part of FIG. 2.

FIG. 4 illustrates a detailed configuration of an inter-hop action processor, which is a part of FIG. 2.

5 is a block diagram illustrating a configuration of a core terminal in a service quality modeling system of a mobile ad-hoc network according to an embodiment of the present invention.

6 is a flowchart illustrating a method of generating a TID in a service quality modeling method of a mobile Ad-hoc network according to an embodiment of the present invention.

Claims (19)

In the service quality modeling system of the mobile Ad-hoc network to ensure communication between the terminals having mobility while ensuring quality of service, Differentiated Service Code Point (DSCP) values are assigned according to the class of IP packets inputted from the lower layer, and a traffic ID (Traffic ID, TID) is generated based on the inter-hop behavior processing associated with the DSCP value. An edge terminal for transmitting the IP packets sequentially; And The core terminal receiving IP packets indicated by the DSCP value transmitted from the edge terminal and adjusting the TID mapping according to link characteristics to transmit to the arbitrary terminal through the network. Quality of service modeling system of the mobile ad-hoc network comprising a. The method of claim 1, The edge terminal, A destination discriminator for transmitting the IP packet to a higher layer or determining a transmission to another terminal based on the destination address of the IP packet; A packet classifier for determining a class of the IP packet by determining a service quality level required by the IP packet transmitted for transmission from the destination discriminator to another terminal; A packet conditioner that measures the amount of resources consumed by the IP packet, by assigning a DSCP value to the header of the IP packet according to the packet class determined by the packet classifier; A routing core for performing a route search for transmission of an IP packet to which the DSCP value is assigned by the packet conditioner; An inter-hop behavior processor for inspecting the DSCP value assigned to the IP packet by the packet controller to perform a corresponding inter-hop behavior processing operation, and determining an output order of IP packets belonging to the inter-hop behavior processing scheme; And A TID selector for generating a TID required for a transmission request to the next hop of the corresponding IP packet by the inter-hop behavior processing scheme mapped from the DSCP value assigned to the IP packet in the packet conditioner Quality of Service Modeling System for Mobile Ad-hoc Networks. The method of claim 2, The destination discriminator, If the destination address of the IP packet is the same as its own IP address, the IP packet is transmitted to a higher layer. If the destination address of the IP packet is different from its own IP address, the packet is transmitted to another terminal. Quality of Service Modeling System for Mobile Ad-hoc Networks. The method of claim 2, The packet conditioner, A classifier for classifying according to the class of the IP packet; A marker for assigning an appropriate DSCP value to a header of the IP packet according to a classification result of the classifier; A meter (METER) for measuring an amount of resources consumed by IP packets transmitted through the classifier; And SHAPER / POLICER for outputting the IP packet marked with the DSCP value to the routing core according to the processing result of the marker or meter. Quality of service modeling system of the mobile ad-hoc network comprising a. The method of claim 1, The core terminal, A destination discriminator for determining whether a destination address of the IP packet transmitted from the edge terminal matches the IP address of the core terminal; A routing core for performing a route search for transmission of the IP packet when the destination address of the IP packet is different from the IP address of the core terminal in the destination discriminator; In order to transmit the IP packet according to the path searched by the routing core, a DSCP value assigned to the IP packet is examined to perform a corresponding inter-hop behavior processing operation, and an output order of IP packets belonging to the inter-hop behavior processing scheme. An inter-hop action processor to determine; And TID selector for generating a TID required for the transmission request to the next hop of the IP packet by the inter-hop behavior processing scheme mapped from the DSCP value of the IP packet transmitted from the inter-hop behavior processor  Quality of service modeling system of the mobile ad-hoc network comprising a. The method according to claim 2 or 5, The hop-to-hop action processor, An integrated behavior classifier that examines a DSCP value assigned to an IP packet by the packet conditioner and classifies the IP packet according to a corresponding hop-thaw processing scheme (PHB); A buffer manager which applies a discarding probability corresponding to traffic in an AF (Assured Forwarding) PHB when a link congestion occurs; And A scheduler that guarantees the bandwidth required for each PHB classified by the integrated behavior classifier and determines the output order of packets belonging to each PHB.  Quality of service modeling system of the mobile ad-hoc network comprising a. The method of claim 6, The scheduler, A QUEUE for each IP packet of each PHB exists in a service quality modeling system of a mobile ad-hoc network. The method according to claim 2 or 5, The TID selector, The TID is a traffic category ID (TCID) defined as a user priority having a value of 0 to 7, and a traffic stream ID for classifying a traffic class of a parameter type having a value of 8 to 15. Quality of Service Modeling System for Mobile Ad-hoc Networks. The method of claim 8, The TID selector, If the terminal has a medium access control (MAC) layer of quality of service support by the PHB mapped from the DSCP value assigned to the IP packet, and generates a TSID between 0-15, and transmits the packet to the lower layer, A service quality modeling system of a mobile ad-hoc network that generates a TCID ranging from 0 to 7 and transmits a packet to the best service when the terminal has a service quality non-supported media access control layer or is out of the service quality support basic service area. . The method according to claim 2 or 5, And a quality of service processing engine for causing the TID selector to generate a new TID according to traffic profile and link status. In the service quality modeling method of the mobile Ad-hoc network to ensure communication between the terminals having mobility while ensuring quality of service, A) the edge terminal determines whether to forward the IP packet to the next hop (HOP) using the destination address of the IP packets input from the lower layer; B) In the case of forwarding the IP packet to the next hop in the step A), the IP packet is assigned a differentiated service code point (DSCP) value according to a grade, and the inter-hop behavior processing associated with the DSCP value is performed. Generating the TID based on a (PHB) and sequentially transmitting the IP packets; And C) the core terminal receiving the IP packets indicated by the DSCP value transmitted from the edge terminal in step B) adjusts the TID mapping according to link characteristics and transmits the IP packet to a corresponding destination address through a network; Quality of service modeling method of the mobile ad-hoc network comprising a. The method of claim 11, Step A) is Iii) if the destination address of the IP packet is the same as the IP address of the edge terminal itself, sending the IP packet to a higher layer; And Ii) forwarding the IP packet to the next hop if the destination address of the IP packet is different from the IP address of the edge terminal itself; Quality of service modeling method of the mobile ad-hoc network comprising a. The method of claim 11, Step A) is When the IP packet is generated at the edge terminal, the edge terminal acts as an end user to forward the IP packet to the next hop. The method of claim 11, Step B) is And determining a service level required by the IP packet to determine a class of the corresponding IP packet and determining a DSCP value according to the class of the IP packet. The method of claim 11, Step B) is After checking the DSCP value assigned to the IP packet, the IP packet is classified according to the inter-hop processing method (PHB), and the packet processing is performed by applying the discard probability corresponding to the traffic in each PHB, and then the packet belonging to each PHB. Quality of Service Modeling Method for Mobile Ad-hoc Networks Determining Output Sequence The method of claim 15, The PHB, EF PHB, which is a traffic stream with high priority processing requiring quality of service for end users; An AF PHB having priority lower than that of the EF PHB and having a grade and a drop rank according to a link state; And Best service PHB, best service traffic with a lower priority than the AF PHB Quality of service modeling method of the mobile ad-hoc network comprising a. The method of claim 16, Step B) and step C), I) interpreting the PHB from the DSCP value of the IP packet and transmitting the packet to the medium access control (MAC) layer by mapping the TID to a TSID value having a value of 8 to 15 if it is an EF PHB; Ii) if the IP packet is an AF PHB, transmitting the packet to a MAC layer by mapping the TID to a TSID value lower than the TSID value of step iii); And Iii) if the IP packet is a best service PHB, mapping the TID to a TCID value having a value from 0 to 7 and transmitting the packet; Quality of service modeling method of the mobile ad-hoc network comprising a. The method of claim 11, Step C) is And the core terminal transmits the IP packet to a path established according to a traffic classification and scheduling procedure when the IP packet address is different from its own IP address. The method of claim 11, Step C) is The core terminal generates a new TID from the DSCP value of the IP packet and transmits it to a lower layer.