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Through terminal-communicating method based on network coding

A terminal direct communication and network coding technology, which is applied in the field of wireless communication, can solve the problems of no specific proof advantages, no emphasis on coding implementation methods, etc., and achieve the effect of reducing the probability of interruption and improving capacity

Active Publication Date: 2014-04-02
NANJING UNIV OF POSTS & TELECOMM
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  • Abstract
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Problems solved by technology

The application document does not emphasize the implementation method of coding, nor does it specifically prove the advantages of introducing network coding

Method used

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  • Through terminal-communicating method based on network coding
  • Through terminal-communicating method based on network coding
  • Through terminal-communicating method based on network coding

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Embodiment Construction

[0026] Below in conjunction with accompanying drawing, the technical scheme of invention is described in detail:

[0027] Related terms described in the present invention:

[0028] The cell base station eNodeB mainly completes the control of D2D communication and the allocation of resources.

[0029] The relay user R refers to a user performing network coding in D2D communication.

[0030] The initiating user A refers to: the initiator of the D2D communication.

[0031] The receiving user B refers to: the receiving party of the D2D communication.

[0032] The cellular user C_UE refers to: the cellular user whose resources are multiplexed.

[0033] Such as figure 1 Shown is a schematic diagram of a scenario where network coding is applied in D2D of the present invention. In a single cell (hexagonal area), it includes a base station eNodeB, a pair of D2D users A and B, a relay R and a cellular user C_UE, and the resources of the cellular user C_UE are multiplexed by the D2D...

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Abstract

The invention discloses a through terminal-communicating method based on network coding. The method comprises the following steps of sending a conversation request to a base station by a D2D (Door to Door) user, and searching for the position of a conversation object by the base station; judging the conditions of two D2D users for meeting through terminal communication, allocating the resources of a farther cellular user to the D2D users for multiplexing use, allocating relay nodes for the edge distances of the D2D users positioned in D2D communication by the base station, and multiplexing a spectrum resource through the relay nodes by adopting the network-coding modes of three time slots to finish the D2D communication. The system capacity is effectively increased, and the outage probability is effectively reduced.

Description

technical field [0001] The invention relates to a terminal direct communication method based on network coding. Performance analysis of network coding technology introduced in D2D communication system in cell. It mainly analyzes the system capacity and outage probability of the D2D system under the introduction of network coding technology, which belongs to the field of wireless communication technology. Background technique [0002] Although the D2D communication is used to assist the cellular communication, which can improve the performance of the cellular system, since the D2D communication reuses resources with one cellular user, it will be interfered by the cellular user during the D2D communication. The traditional D2D communication method cannot solve such problems. Based on the traditional D2D communication method, this solution introduces network coding technology, which can well solve the interference problem between cellular users and D2D users. [0003] In the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04W76/02
Inventor 邵世祥赵智勇孙君
Owner NANJING UNIV OF POSTS & TELECOMM
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