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Realization method of arq protocol in swipt relay network based on multi-relay

A technology of relay network and implementation method, which is applied in the field of realization of ARQ protocol, can solve problems such as relay selection protocol without SWIPT wireless relay network design, and achieve the effect of improving spectrum efficiency

Inactive Publication Date: 2017-12-15
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for energy-constrained relay networks, most of the research focuses on the case of energy harvesting by relay nodes. So far, there is no relay selection protocol specially designed for SWIPT wireless relay networks with feedback information.

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  • Realization method of arq protocol in swipt relay network based on multi-relay
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  • Realization method of arq protocol in swipt relay network based on multi-relay

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Suppose the network includes a source node S, a destination node D, and M relay nodes R, h k is the channel state information of the forward link of the kth relay node, g k is the channel state information of the forward link of the kth relay node.

[0024] see Figure 1 to Figure 3 , the present invention is based on the realization method of ARQ agreement in the SWIPT relay network of multi-relay, comprises the following steps:

[0025] 1) At the sending end, the source node first broadcasts the data packet to be sent to the relay node and the destination node in the network, and waits for the feedback information from the destination node. The feedback information is the confirmation information ACK or the non-confirmation information NACK;

[0026] 2) At the receiving end, the destination node performs information detection accord...

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Abstract

The invention discloses a method for realizing ARQ protocol in a multi-relay-based SWIPT relay network. The protocol includes: at the sending end, a source node broadcasts and sends data packets to a destination node, and waits for feedback information from the destination node. At the receiving end, the destination node detects according to the received information. If the information is received correctly, the destination node will broadcast the confirmation signal ACK, and the source node will continue to transmit the next new data packet after receiving the signal, otherwise the destination node will A non-acknowledgment signal NACK is broadcast. At this time, the correctly decoded relay retransmits the data packet according to the two combining schemes described in the present invention.

Description

technical field [0001] The invention relates to a relay cooperative transmission protocol in the technical field of mobile communication, in particular to a method for realizing the ARQ protocol in a multi-relay-based SWIPT (signal energy simultaneous interpretation) relay network. Background technique [0002] Relay cooperative communication is an effective strategy to exploit the available spatial diversity among distributed single-antenna terminals. Due to the natural distribution of relay nodes in wireless relay networks, the performance of wireless communication systems can be significantly improved in resource-constrained or large-scale relay networks. However, when the data sent by the source node to the destination node is successfully decoded, it is unnecessary to relay at this time. Considering that the relay stage will occupy a part of the bandwidth of the channel, the enhanced relay or cooperative ARQ protocol is proposed. It is expected to achieve better spectr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18H04B7/15
Inventor 张超陈亚伟
Owner XI AN JIAOTONG UNIV