A method to allow delayed transmission in SWIPT two-way transmission relay system based on PS strategy

By adopting PS strategy and allowable delay relay strategy in SWIPT bidirectional transmission relay system, the problem of ideal maximum throughput research in the prior art is solved, and higher spectrum utilization and actual maximum throughput are achieved.

CN111988802BInactive Publication Date: 2025-03-25TIANJIN POLYTECHNIC UNIV
1 Cites 0 Cited by

Patent Information

Application Number
CN202010882193.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-08-28
Publication Date
2025-03-25
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing SWIPT bidirectional transmission system tends to be idealized in the research on maximum throughput, and has failed to effectively solve the practical problems of delay and spectrum utilization during relay transmission.

Method used

Using the SWIPT bidirectional transmission relay system based on PS strategy, using the allowable delay relay (TDR) strategy, the relay node does not require strict time synchronization with the source node, and realizes information transmission by meeting the communication requirements by one-sided channel conditions, and optimizes the actual maximum throughput throughput through power segmentation coefficient.

Benefits of technology

It is realized that the actual maximum throughput of the bidirectional transmission relay system is improved without requiring the time synchronization between the receiver and the transmitter, and the spectrum utilization and energy collection efficiency of the system are enhanced.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The present invention discloses a delayed transmission method in a SWIPT two-way transmission relay system based on a PS strategy. The signal-energy simultaneous transmission (SWIPT) two-way transmission relay system includes two active source nodes and a passive relay node. The relay node has the ability to collect radio frequency energy and adopts a power splitting (PS) strategy. The entire communication channel is a quasi-static Rayleigh attenuation channel. The SWIPT two-way transmission relay system adopts a delayed relay (TDR) strategy, which means that the receiving node and the transmitting node are not required to be strictly synchronized in time. Through theoretical derivation, the functional relationship between the actual maximum throughput and the power splitting coefficient is obtained. An optimization problem is established with the optimal actual maximum throughput as the goal, and an optimization algorithm is used to obtain the optimal power splitting coefficient and the optimal actual maximum throughput.
Need to check novelty before this filing date? Find Prior Art