Cross-layer cooperative transmission protocol in multi-hop wireless Ad Hoc network and application thereof

A wireless self-organizing and cooperative transmission technology, applied in wireless communication, electrical components, etc., can solve the problems of unreliability of data reception and AdHoc network not being applied on a large scale.

Active Publication Date: 2016-12-21
安徽省模式识别信息技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the Ad Hoc network has not been widely used at present, an important reason is the unreliability of data reception in the Ad Hoc network

Method used

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  • Cross-layer cooperative transmission protocol in multi-hop wireless Ad Hoc network and application thereof
  • Cross-layer cooperative transmission protocol in multi-hop wireless Ad Hoc network and application thereof
  • Cross-layer cooperative transmission protocol in multi-hop wireless Ad Hoc network and application thereof

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Experimental program
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Embodiment Construction

[0089] In this embodiment, in order to implement the CLCT protocol, a cross-layer cooperative transmission protocol in a multi-hop wireless ad hoc network, including five control frames: CL-RTS frame, CL-CTS frame, CL-RTH frame, CL-ATR frame and CL-ACK frame; these frames are extensions of the RTS / CTS / ACK frames in the IEEE 802.11 protocol, and the specific frame formats are as follows figure 1 shown. At the same time, the data frame format of the 802.11 protocol is extended, and the CLCT data frame format is obtained.

[0090] The CL-RTS frame occupies 27 bytes and is an extension of the RTS frame in the 802.11 protocol. On the basis of the RTS frame format, the Packet Length field, Sender Location field, Destination Location field, and Number field are added;

[0091] The Packet Length field occupies 2 bytes and is used to indicate the length of the sent packet;

[0092] The Sender Location field occupies 2 bytes and is used to indicate the geographic location of the sende...

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Abstract

The invention discloses a cross-layer cooperative transmission protocol in a multi-hop wireless Ad Hoc network and an application thereof. In the protocol, an information receiver and a cooperative relay in one hop are determined at the same time, the receiver is closer to a target node, and the cooperative relay has a better channel condition. Furthermore, as an inter-flow signal reference problem caused by transmission of multiple information flows existing in the network is considered, an interference factor is introduced while the cooperative relay is selected in the protocol. As a result, the selected cooperative relay while transmitting information has relatively low interference to other information flows. The basic principle and method of the invention can be applied to a multi-hop multi-flow wireless Ad Hoc network in a Rayleigh fading environment.

Description

technical field [0001] The invention relates to wireless ad hoc network technology, collaborative communication technology and wireless routing and media access control technology. Background technique [0002] Wireless self-organizing (Ad Hoc) network is a temporary autonomous system composed of a group of wireless terminal devices. Strong and other significant advantages, can be used in various environments such as wartime communication, emergency rescue, temporary meeting, etc., with broad application prospects. However, the Ad Hoc network has not been applied on a large scale at present, and an important reason is the unreliability of data reception in the Ad Hoc network. Fortunately, the emergence of cooperative communication has brought dawn to the solution of these problems, which can promote the wide application of AdHoc network. In a cooperative communication environment, each wireless terminal only needs to install one antenna, and can share the antennas of other...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/22
CPCH04W40/22
Inventor 吴其林曹骞程军张正金
Owner 安徽省模式识别信息技术有限公司
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