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Wireless Ad hoc network multicast tree establishing method

A technology of wireless ad hoc network and establishment method, which is applied in the field of multicast tree establishment of wireless ad hoc network, can solve the problem of low transmission quality of multicast routing protocol, and achieve the effect of avoiding invalid forwarding

Active Publication Date: 2017-01-11
BEIJING JIAOTONG UNIV
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  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a method for establishing a multicast tree in a wireless ad hoc network to solve the problem that the transmission quality of existing multicast routing protocols is not high

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  • Wireless Ad hoc network multicast tree establishing method
  • Wireless Ad hoc network multicast tree establishing method
  • Wireless Ad hoc network multicast tree establishing method

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Embodiment Construction

[0048] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0049] like figure 1 As shown, the multicast tree establishment method of the wireless ad hoc network provided by this embodiment includes the following steps:

[0050] S1, such as figure 2 As shown, in this solution, only the members of the multicast group can initiate the multicast service of the multicast group by default, and the absence of the group is not considered. If you want to send the multicast service, you must first join the multicast group. Therefore, first of all, the multicast service source node judges...

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Abstract

The invention discloses a wireless Ad hoc network multicast tree establishing method. The wireless Ad hoc network multicast tree establishing method is based on a network layer MAODV protocol and an IEEE 802.16 MAC (media access control) layer distributed type scheduling technology, and is characterized in that a distributed type scheduling mechanism is separated from the MAC layer, and is integrated in a network layer multicast route algorithm; during the establishing of the multicast tree, a proper tree establishing route is selected by using known resource information, and therefore the multicast tree used for reserving certain resources for the multicast is established, and then a business conflict is prevented. Bandwidth application and distribution operation are integrated in a route control message, and resource distribution work is completed at the same time of establishing the route, and the MAC layer is used for data transmission according to the distribution result of the network layer, and the rescheduling is not required. The wireless Ad hoc network multicast tree establishing method is different from conventional MAC protocols such as independent scheduling and repeated interaction, and is advantageous in that a scheduling flow is integratedly simplified, time and resources are effectively saved, and service quality is improved.

Description

technical field [0001] The invention relates to the field of wireless ad hoc networks. More specifically, it relates to a network layer based MAODV (MulticastAd hoc On-demand Distance Vector Routing) protocol and IEEE802.16MAC (Media Access Control, Media Access Control) layer distributed scheduling technology A method for establishing a multicast tree in a wireless ad hoc network. Background technique [0002] Wireless mobile ad hoc network, also known as wireless mobile multi-hop network, or wireless ad hoc network for short, is a special network composed of a group of wireless mobile nodes that cooperate with each other, has no central control node, and does not depend on any fixed network equipment. [0003] In some application scenarios of wireless ad hoc networks, multicast communication is a very important communication method. For example, in formation communication, formation members need to communicate with each other, and at the same time, formation members need...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/761H04W40/04H04W40/18H04W40/24H04L45/16
CPCH04L45/16H04W40/04H04W40/18H04W40/248
Inventor 李旭姜宇嘉于莉何浩雄唐艺玮
Owner BEIJING JIAOTONG UNIV
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