CN102035730A - Fusion network system architecture supporting WLAN to cross MANET for communication and on-demand routing method - Google Patents

Abstract

The invention discloses a fusion network system architecture supporting a wireless local area network (WLAN) to cross mobile ad hoc network (MANET) for communication and relates to the technical field of network communication. A carrying network consists of mobile ad hoc routers (MAR), each MAR serves as an access point (AP) to support a WLAN packet, and communication in the packet adopts an IEEE802.11PCF mode; communication between packets is implemented through an MANET network constructed by the MAR, wherein the MAR refers to a node serving as the AP for administering the WLAN in the network system structure and is also a member in the MANET so as to implement full-network mobile multi-hop independent communication; the node is named as the MAR; and the AP is the access point. The invention can effectively support the WLAN to cross the MANET for communication so as to implement full-network interconnection of a fusion network.

Description

Support WLAN to cross over the UNE architectural framework and the routing method on demand of MANET communication

Technical field

The present invention relates to network communications technology field, exactly relate to stratification UNE architecture and routing method on demand that WLAN crosses over MANET communication.

Background technology

WLAN (wireless local area network) (Wireless Local Area Network, WLAN) adopt IEEE 802.11 agreements, for providing the service of Internet wireless access such as mobile terminal devices such as notebook computer, mobile phone, PDA, be the most popular Internet wireless terminal access way of current application, be widely used in family, school, office and other kinds public place.

(Mobile Ad hoc Network, MANET) the autonomous networks system that is made up of a series of nodes with mobile wireless transmitting-receiving ability possesses special ability such as networking, multi-hop communication voluntarily to mobile Ad hoc network.Although have that topological transformation is frequent, wireless channel is unstable, link bandwidth is limited and calculate characteristics such as storage resources anxiety, but since the MANET network do not rely on any static infrastructure can operate as normal, have good mobility, property organized and survivability certainly, and traditional relatively cable network is disposed convenient, with low cost, have broad application prospects in fields such as military battlefield, disaster relief and the people's livelihood, commerce, become hot research in recent years thus.

The core of MANET network service is that the multi-hop route is judged efficiently, and (On-demand) route (also being called reaction equation (Reactive) route) then is very classical and an important class MANET method for routing as required.Route is different from traditional cable network method for routing as required, and and if only if when the application data transmission demand is arranged, and just can seek the optimal path of going to the destination.This characteristic makes that route can adapt to all kinds of MANET topological transformation scenes neatly as required, and compares the reaction equation route, can effectively reduce Routing Protocol and safeguard required communication payload.Classical MANET routing method on demand has DSR(Dynamic Source Route, referring to RFC4721), AODV(Ad hoc On-demand Distance Vector, referring to RFC) etc., they have identical route finding process.

With the DSR agreement is example, considers the simple demonstration scene of one four node, and promptly source node S and destination node T but can pass through intermediate node (Intermediate Node) IN1 and IN2 realization multi-hop communication not in signal cover mutually.Fig. 1 has showed the basic process that S communicates by letter with T in this scene:

1) because S does not go to the routing information of T, so S at first sends RRQT(Route Request, route requests with broadcast mode to all neighbor nodes).

2) when RRQT is transmitted by intermediate node, intermediate node is recorded in the address identification message of local node in the RRQT message, thereby forms source routing.In Fig. 1 example, RRQT is at final arrival destination T after the relaying of intermediate node IN1 and IN2 is transmitted, and bring the source-routed information that starts from source node (S, IN1, IN2).

3) T generates RREP(Route Reply, routing reply according to RRQT subsequently), and with mode of unicast will complete source routing (S, IN1, IN2, T) loopback is to S.

4) after S receives RREP, obtain to encapsulate behind definite routing information according to RREP and send the data in buffer message.Here, the basic skills that DSR adopts is to allow data message carry source-routed information, so data message will be in strict accordance with source routing specified path forwarded hop-by-hop, until destination (referring to Fig. 1).

If simply with＜type of message, destination node sign, source node sign, (source routing)〉quadruple form represents message information, then above process also can be described as following form (referring to Fig. 2, the link-layer broadcast of-* representative data).In this describing mode, source, destination node sign in source, destination node sign and the source-routed information exist redundant, during the actual agreements design, can consider the source-routed information of part message is simplified processing, as＜RRQT, T, S (S, IN1)〉in fact can be described as＜RRQT T, S, (IN1) 〉.

In the passing MANET research, custom adopts ripe WLAN IEEE 802.11 agreement DCF(Distributed Coordination Function) mode of operation is as bottom wireless communication protocol working method; Simultaneously, MANET also usually with the WLAN that adopts the architecture facility, is used as the wireless terminal network form that inserts Internet as the specific network types that need not the architecture facility.MANET and WLAN close relation as early as possible, but as yet not relevant for the correlative study of WLAN with the MANET fusion.

It is that unit carries out motor-driven essential characteristic that typical case MANET application scenarios has usually with the group, and this shows particularly outstanding in scenes such as military battlefield, emergency relief.This type of becomes in the MANET application scenarios of organizational system grouping, and the demand of instant messaging is bigger, and the inner member of same group communicates by letter frequently, has identical maneuvering characteristics, mutual communication distance always remain on relatively-stationary more among a small circle within.Therefore, each group can abstractly be the single node in the MANET network.Make a distinction if communicate by letter between will organizing intercommunication and organizing, then will effectively reduce MANET Routing Protocol overall overhead, promote overall performance of network.

MANET sub-clustering mechanism is a kind of traditional solution thinking, but because in the practical application, the group member is relative fixed (as the battlefield organizational system of the army) often, considers factors such as communication efficiency and safety, and it is too loose that the sub-clustering mode that the member changes with change in topology in bunch shows.

Summary of the invention

For solving the MANET typical case application scenarios that above-mentioned prior art can not adapt to into the organizational system grouping, emphasis of the present invention is considered with WLAN as terminal network, and with MANET as bearer network, propose a kind of WLAN of support and crossed over the network system framework that MANET implements converged communication, simultaneously, the present invention can not effectively support WLAN leap MANET communication for solving prior art, can not realize the technical problem that UNE the whole network interconnects, proposed to support WLAN to cross over the routing method on demand that MANET implements the network system framework of converged communication, this method can effectively support WLAN and cross over MANET communication, realizes that UNE the whole network interconnects.

The present invention realizes by adopting following technical proposals:

A kind of WLAN that supports crosses over the UNE architectural framework of MANET communication, and it is characterized in that: bearer network is made up of MAR, and each MAR supports a WLAN grouping as AP simultaneously, and IEEE 802.11 PCF patterns are adopted in communication in the group; Communication realizes by the MANET network that MAR makes up between group, described MAR is meant: in this network architecture, node is except that separately as AP(Access Point) WLAN of administration, it simultaneously also is a member among the MANET, realize the whole network mobile multi-hop autonomous communication, at this, with described node called after MAR(Mobile Ad hoc Router), described AP is meant Access Point.

Support WLAN to cross over the routing method on demand of the UNE architectural framework of MANET communication, it is characterized in that: the node communication demand that merges in the networking can be divided into following six classes:

Communication between A, the MAR node;

Communication between the inner different WLAN nodes of B, WLAN;

Communicating by letter between C, local WLAN node and the local MAR node;

D, local WLAN node initiate with internodal communication of non-local MAR;

E, local MAR node initiate with internodal communication of non-local WLAN;

F, local WLAN node initiate with internodal communication of non-local WLAN;

Wherein, category-A communication is communication in the pure MANET net, is supported by traditional on-demand routing protocol; B, the communication of C class belong to the WLAN intercommunication, are supported by IEEE 802.11 agreements; D, the communication of F class are initiated by the WLAN internal node, must be by a corresponding MAR node generation RRQT; Though and the communication of E class is initiated by the MAR node, target is non-local WLAN node, and its RRQT handling process is communicated by letter identical for the handling process of RRQT with the F class.

The more excellent technical scheme of the present invention is: set up WLAN subnet mask field in RRQT and RREP.Thereby such scheme is optimized, makes MAR can discern outside WLAN subnet.

Compared with prior art, the technique effect that the present invention reached is as follows:

1, by adopting WLAN to cross over the UNE architecture of MANET communication, efficient based on maturation and be easy to obtain WLAN technology component, can carry out the level division of simple and convenient to traditional MANET planar network, adapt to the actual demand that becomes the organizational system grouping in the MANET practical application scene well.

This type of becomes in the MANET application scenarios of organizational system grouping, and the instant messaging demand is bigger, and the inner member of group communicates by letter frequently, has identical maneuvering characteristics, mutual communication distance always remain on relatively-stationary more among a small circle within.By in group, adopting maturation WLAN technology efficiently, can effectively reduce MANET Routing Protocol overall overhead.Particularly because the inner IEEE 802.11 PCF mode of operations that adopt of WLAN, the IEEE 802.11 DCF mode of operations that adopt with respect to traditional MANET research institute can provide more effective support for the service of delay sensitive.

2, the UNE on-demand routing protocol that proposes by this programme can overcome traditional MANET on-demand routing protocol and be difficult to support the problem that the whole network interconnects in UNE, effectively supports WLAN and crosses over MANET communication.And by optimization process, can effectively alleviate the routing broadcast request that the MAR node is initiated for the WLAN node in the UNE, effectively reduce the source routing stored number of MAR simultaneously the UNE on-demand routing protocol.

Description of drawings

The present invention is described in further detail below in conjunction with specification drawings and specific embodiments, wherein:

Fig. 1 is for being the basic process schematic diagram that S communicates by letter with T in this scene of example with the DSP agreement in the prior art

Fig. 2 is description form figure among Fig. 1

Fig. 3 is a WLAN over MANET UNE rough schematic of the present invention

Fig. 4 is the D class communication basic process schematic diagram based on the simple network example

Fig. 5 is the E class communication basic process schematic diagram based on the simple network example

Fig. 6 is the F class communication basic process schematic diagram based on the simple network example

Fig. 7 is the general schematic diagram of WLAN over MANET UNE

Fig. 8 is the D class communication process schematic diagram after optimizing

Fig. 9 is the E class communication process schematic diagram after optimizing

Figure 10 is the F class communication process schematic diagram after optimizing

The schematic diagram of Figure 11 for UNE shown in Figure 3 is carried out emulation testing.

Embodiment

Embodiment 1

It is that unit carries out motor-driven essential characteristic that typical case MANET application scenarios has usually with the group, and this shows particularly outstanding in scenes such as military battlefield, emergency relief.This type of becomes in the MANET application scenarios of organizational system grouping, and the demand of instant messaging is bigger, and the inner member of same group communicates by letter frequently, has identical maneuvering characteristics, mutual communication distance always remain on relatively-stationary more among a small circle within.Therefore, each group can abstractly be the single node in the MANET network.Make a distinction if communicate by letter between will organizing intercommunication and organizing, then will effectively reduce MANET Routing Protocol overall overhead, promote overall performance of network.

MANET sub-clustering mechanism is a kind of traditional solution thinking, but because in the practical application, the group member is relative fixed (as the battlefield organizational system of the army) often, considers factors such as communication efficiency and safety, and it is too loose that the sub-clustering mode that the member changes with change in topology in bunch shows.The breakthrough (referring to Fig. 3) that the mode that present technique mainly considers to adopt WLAN and MANET to merge is obtained overall performance of network.As terminal network, not only be adapted to the grouping organizational system demand in the practical application with the WLAN of maturation, and can provide service more efficiently for communication in organizing; And with MANET as bearer network, can realize effectively that then different grouping WLAN crosses over the mobile multi-hop self-assembly of MANET.

Fig. 3 shows be one based on 802.11 IBSS(Independent Basic Service Set) constructed UNE simple examples.In this network architecture, node A, B, C are except that separately as AP(Access Point) WLAN of administration, it simultaneously also is a member among the MANET, to realize the whole network mobile multi-hop autonomous communication (at this, will such as A, B, the such node called after MAR(Mobile Ad hoc Router of C)).Obviously, traditional MANET routing algorithm the whole network that can not effectively support this UNE as required interconnects, because each WLAN node does not participate in the MANET routing daemon.If WLAN node A_1 wishes to communicate by letter with C_2, then there is following subject matter:

1) A_1 itself can't initiate route requests, can only depend on corresponding gateway node A, sends out RRQT by its generation;

2) even if being considered as oneself with the A_1 data, A goes out, activate route discovery processes, also must redefine the RRQT message content, assurance data source client information (being A_1 node address sign) all the time as seen, is accepted and believed source routing that RRQT is with for the destination node selectivity in the route requests process;

3) the MAR node must be different from traditional on-demand routing protocol for the handling process of RRQT in the middle of, before transmitting RRQT, needs at least to check that whether RRQT is the target network segment with local WLAN.

4) even if A arrives C smoothly for the RRQT that A_1 sends, C must be different from traditional on-demand routing protocol for the processing of RRQT, must consider whether to verify whether C_2 is active, and make suitable R REP and reply, and can realize that to guarantee that A_1 waits a moment active data transmits.

Above problem must be solved by designing suitable UNE routing method on demand, with the UNE communication of effective support WLAN leap MANET.

For this reason, for adapting to into the MANET typical case application scenarios of organizational system grouping, this programme has proposed WLAN and has crossed over the stratification UNE architecture (architectural schematic is referring to Fig. 3) that MANET communicates by letter.In this network architecture, bearer network is made up of MAR, and each MAR can be used as AP and supports a WLAN grouping simultaneously.IEEE 802.11 PCF(Point Coordination Function are adopted in communication in the group) pattern, have maturation application characteristic efficiently; Communication then realizes by the MANET network that MAR makes up between group.

The UNE routing method on demand that adopts this programme to propose can effectively support WLAN and cross over MANET communication, realizes that UNE the whole network interconnects.This type of node communication demand that merges in the networking can be divided into following six classes:

Communication between A, the MAR node;

Communication between the inner different WLAN nodes of B, WLAN;

Communicating by letter between C, local WLAN node and the local MAR node;

D, local WLAN node initiate with internodal communication of non-local MAR;

E, local MAR node initiate with internodal communication of non-local WLAN;

F, local WLAN node initiate with internodal communication of non-local WLAN;

Obviously, category-A communication is communication in the pure MANET net, can support (referring to Fig. 1) by traditional on-demand routing protocol.D, E, the communication of F class are then different: D, the communication of F class are initiated by the WLAN internal node, must send out a RRQT by corresponding MAR node generation, and their difference is the processing mode difference of final jump MAR for RRQT; Though and the communication of E class is initiated by the MAR node, target is non-local WLAN node, and its RRQT handling process is communicated by letter similar for the handling process of RRQT with the F class.

This programme supposition UNE adopts similar 802.11 link bidirectional (bi-directional) communication protocol, and the whole network node is security node.Below by Fig. 3 example network, describe with regard to D, E, F class communication process respectively:

1) D class communication (suppose local WLAN node A_1 desire initiate and the communicating by letter of non-local MAR node C) basic process is as shown in Figure 4:

A_1 is at first by ARP(Address Resolution Protocol) agreement obtains the MAC Address of gateway node A, subsequently data message is sent to A.The data message of A buffer memory A_1, and for A_1 initiation pathfinding broadcast request.Though A is responsible for generating RRQT and sends, this RRQT is not the demand that comes from A, so the source routing start node that RRQT carries is A_1, but not A.

RRQT transmission course subsequently and traditional MANET routing method on demand are similar, and only intermediate node must judge at first whether the destination of RRQT belongs to local wlan network before transmitting RRQT.

Through the broadcasting of the multi-hop of a series of intermediate nodes, the RRQT C that finally arrives at the destination, C inserts the source routing end with self node address sign, forms complete routing information, and with this information by RREP with the mode of unicast loopback to A.In the RREP loopback process, intermediate node all can upgrade local route-caching by source-routed information study.

A receives after the RREP, can send the A_1 data message of previous buffer memory by the source routing of determining.

2) E class communication (suppose local MAR node A desire initiate and the communicating by letter of non-local WLAN node C_2) basic process is as shown in Figure 5:

Because communication is initiated by MAR node A, thus A behind buffer memory local data newspaper, can be as traditional MANET routing method on demand, the generation source node is self RRQT and broadcast transmission.

Intermediate node is also consistent with D class communication scenes for the processing of RRQT, receives RRQT until C.

C is different from the communication of D class for the processing of RRQT.Though the destination of RRQT is not C, belong to WLAN that C has jurisdiction over, so C must at first verify the accessibility of purpose WLAN node C_2.This programme C adopts simple ARP agreement to confirm whether C_2 can reach, promptly send after the ARP_RQT, if at the appointed time receive ARP_REP, think that then target can reach (having the scene of particular requirement also can adopt other coded communication schemes to carry out the accessibility checking to safety).

After C confirms that C_2 can reach, with C and C_2 node address identification information be inserted into successively RRQT with the end of source routing, constitute complete routing information, and generate RREP at once and be recycled to A with mode of unicast.In the RREP loopback process, intermediate node all can upgrade local route-caching by source-routed information study.

A obtains by RREP after definite routing information, can encapsulate and send the local data message of previous buffer memory, and this message finally is forwarded to destination node C_2 by the C decapsulation and by WLAN subsequently.

3) F class communication.(suppose local WLAN node A_1 desire initiate and the communicating by letter of non-local WLAN node C_2) basic process is referring to Fig. 6:

With D class communication scenes, A_1 is sent to A with data message behind the ARP protocol interaction, this data message of A buffer memory, and initiate pathfinding broadcast request (RRQT carries source-routed information, and must to indicate data source equally be A_1, but not A) for A_1 by A.

Intermediate node is also consistent with D class communication scenes for the processing of RRQT, receives RRQT until C.

With E class communication scenes, C upgrades source-routed information after the local WLAN destination node C_2 of checking can reach, generate RREP, and is recycled to A with mode of unicast.In the RREP loopback process, intermediate node all can upgrade local route-caching by source-routed information study.

A obtains by RREP after definite routing information, can encapsulate and transmit the A_1 data message of previous buffer memory, and this message finally is forwarded to destination node C_2 by the C decapsulation and by WLAN subsequently.

Embodiment 2

On the basis of the foregoing description, the execution mode after the present invention further optimizes is: the UNE routing method on demand of above content description, can effectively support the UNE TOCOM total communication that WLAN crosses over MANET.But there is certain drawback in this method: if a plurality of nodes that local WLAN or MAR node are desired and same outside WLAN is interior communicate, then must initiate route requests to these targets WLAN node respectively, and local MAR node also must carry out the path storage respectively to the different target node in the same target WLAN, thereby form a large amount of storage redundancies, this will have a strong impact on routing inquiry efficient in large scale network.

Illustrate that with Fig. 3 network is an example,, then must initiate route requests at C_1 and C_2 respectively if node A_1 communicates by letter with C_2 with node C_1 respectively, and the MAR gateway node C of C_1 and C_2 correspondence will return to A two paths information, be respectively (A_1, A, B, C is C_1) with (A_1, A, B, C, C_2), obviously, this two paths is on all four except that final jump, all be through A-along the road〉B-〉C transfers data to node C, carries out data distribution in the WLAN net by C at last.

Therefore, this programme is considered to set up WLAN subnet mask field in RRQT and RREP, thereby such scheme is optimized, and makes MAR can discern outside WLAN subnet.Adopt this method, local MAR only need store 1 for the path of going to many destination nodes of same outside WLAN, promptly only need write down the path of going to this WLAN and get final product.Thereby alleviate MAR route-caching quantity, reduce the route discovery demand, improve MAR routing efficient.Scheme after the optimization is as follows:

The supposition of UNE environment:

1) there be n MAR node in the supposition UNE, be designated as Ni(1

) (referring to Fig. 7); Wherein, k MAR node with and only with k-1 and k+1 MAR node within signal cover mutually (

); All administration has 1 WLAN to each MAR node as the AP node, and there are some WLAN nodes in WLAN inside, is designated as Ni_Wj(1

), all with corresponding MAR in mutual signal cover.MAR node Ni has jurisdiction over W LAN subnet mask correspondence and is designated as Ni_M.(referring to Fig. 7)

2) WLAN adopts IEEE 802.11 PCF(Point Coordination Function, and according to IEEE 802.11 normalized definitions, PCF is designed for delay sensitive class transmission service) functional mode, MANET then adopts IEEE 802.11 DCF functional modes.

3) UNE adopts the identify label of IPv4 address as the UNE node, and all nodes are security node.

The message content formal definition:

1）DataTgtIp?&?DataSrcIp

Data Target IP ﹠amp; Data Source IP, i.e. general data message IP address (IPv4).

2）ArpTgtIp?&?ArpSrcIp

ARP Target IP ﹠amp; ARP Source IP, i.e. the purpose of ARP request and the node identification (being the IPv4 address) of source node.

3）RqtTgtIp?&?RqtSrcIp

Request Target IP Address ﹠amp; Request Source IP Address, the i.e. node identification of the purpose of route requests and source node (being the IPv4 address) as required;

RqtSrcIp refers in particular to the start node of initiating communication requirement, promptly may be WLAN node or MAR node.

4）SrcMask?&?TgtMask

Source Subnet Mask ﹠amp; Target Subnet Mask, the subnet mask of the initial source of promptly communicating by letter end and destination place network;

If the communication sources end is the WLAN node, then SrcMask is the subnet mask of this WLAN node place network, if the communication sources end is the MAR node, then SrcMask is empty;

If communication objective end is the WLAN node, then TgtMask is the subnet mask of this WLAN node place network; If communication objective end is the MAR node, then SrcMask is empty.

5）SrcRteHops

Source Route Hops, the i.e. node identification of each jumping (IPv4 address string) in the source routing;

RqtTgtIp and RqtSrcIp have indicated the start-up portion of a complete source routing iinformation usually, so SrcRteHops as the case may be, only comprise the intermediate node part of a complete source routing iinformation usually.

6）ARP_RQT?&?ARP_REP

ARP Request ﹠amp; ARP Reply, i.e. ARP request and answer message

7) general data message

<Data,?DataTgtIp, DataSrcIp>

8) carry the data message of source-routed information

<Data,?DataTgtIp, DataSrcIp,?TgtMask,?SrcMask,?(SrcRteHops)>

9) ARP request message

<ARP_RQT,?ArpTgtIp, ArpSrcIp>

10) ARP replys message

<ARP_REP,?ArpTgtIp, ArpSrcIp>

11) route requests message

<?RRQT, RqtTgtIp,?RqtSrcIp,?SrcMask,?(SrcRteHops)>

12) routing reply message

<?RREP, RqtTgtIp,?RqtSrcIp,?TgtMask,?(SrcRteHops)>

Network service process prescription (referring to Fig. 7).

1) D class (local WLAN node initiate with internodal communication of non-local MAR)

Suppose N _{1_}W ₁-N _n, process prescription such as Fig. 8.

2) E class (local MAR node initiate with internodal communication of non-local WLAN)

Suppose N ₁-N _{N_}W ₁, process prescription such as Fig. 9.

3) F class (local WLAN node initiate with internodal communication of non-local WLAN)

Suppose N _{1_}W ₁-N _{N_}W ₁, process prescription such as Figure 10.

Obviously, based on above three quasi-protocol flow processs, can effectively ensure between local WLAN node and the outside MAR node, between local WLAN and the outside WLAN node and the efficient communication between local MAR node and the outside WLAN node, realize that UNE the whole network that WLAN crosses over MANET communication interconnects.

Experimental verification:

UNE shown in Figure 3 is carried out emulation testing, in three WLAN, choose a node to provide end respectively as testing service, all the other nodes all are set to client, and it is right to select at random communicate by letter between service end and client, and employing ftp flow amount model is tested.Contrast test has the MANET planar network (adopting the DSR agreement) of identical topological structure simultaneously.Experimental result proves that UNE can realize effectively that the whole network interconnects, and WLAN(PCF) cross over the MANET converged communication network and compare MANET DSR network and have lower communication delay (delay).

Claims (3)

1. support WLAN to cross over the UNE architectural framework of MANET communication for one kind, it is characterized in that: bearer network is made up of MAR, and each MAR supports a WLAN grouping as AP simultaneously, and IEEE 802.11 PCF patterns are adopted in communication in the group; Communication realizes by the MANET network that MAR makes up between group, described MAR is meant: in this network architecture, node is except that administering the WLAN as AP separately, it simultaneously also is a member among the MANET, realize the whole network mobile multi-hop autonomous communication, at this, with described node called after MAR, described AP is meant Access Point.

2. cross over the routing method on demand of the UNE architectural framework of MANET communication according to the described support of claim 1 WLAN, it is characterized in that: the node communication demand that merges in the networking can be divided into following six classes:

Communication between A, the MAR node;

Communication between the inner different WLAN nodes of B, WLAN;

Communicating by letter between C, local WLAN node and the local MAR node;

D, local WLAN node initiate with internodal communication of non-local MAR;

E, local MAR node initiate with internodal communication of non-local WLAN;

F, local WLAN node initiate with internodal communication of non-local WLAN;

Wherein, category-A communication is communication in the pure MANET net, is supported by traditional on-demand routing protocol; B, the communication of C class belong to the WLAN intercommunication, are supported by IEEE 802.11 agreements; D, the communication of F class are initiated by the WLAN internal node, must be by a corresponding MAR node generation RRQT; Though and the communication of E class is initiated by the MAR node, target is non-local WLAN node, and its RRQT handling process is communicated by letter identical for the handling process of RRQT with the F class.

3. support WLAN according to claim 2 crosses over the routing method on demand of the UNE architectural framework of MANET communication, it is characterized in that: set up WLAN subnet mask field in RRQT and RREP.

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