Communication system based on energy scheduling and communication throughput optimization method thereof

Abstract

The invention discloses a communication system based on energy scheduling and a communication throughput optimization method thereof. The system comprises a power beacon, a hybrid transmitter and a hybrid receiver, RF signals transmitted by the PB provide carrier signals or energy to the HT; and in one time frame, the HT adopts one working mode of EH, BC or AIT according to the energy state of theHT and the state of the transmission channel. The HT has three working modes of EH, BC and AIT, the three working modes of the HT form the working modes of the seven systems, and in one time frame, the communication system selects one of the working modes for communication according to the energy state and the channel state of the HT. According to the system, a rechargeable battery is introducedinto HT, so system energy scheduling is realized; and the HT can more flexibly execute three working modes of EH, BC and AIT in each time frame.

Description

technical field [0001] The invention relates to the technical field of wireless network communication, in particular to an energy scheduling-based communication system and a communication throughput optimization method thereof. Background technique [0002] At present, in wireless networks, Wireless Powered Communication (WPC) is usually a method of Harvest Then Transmit (HTT), referred to as HTT communication. The transmitter will first spend a certain amount of time from the external radio frequency (Radio Frequency, RF ) The source collects enough energy (stored in a rechargeable battery), and then uses this part of energy for active information transfer (Information Transfer, IT). If the collected energy is insufficient, communication will be interrupted, which will affect the real-time performance of information transmission. . Although relying on the energy of the battery, WPC can achieve higher throughput and longer transmission distance, but the energy consumed by t...

AI Technical Summary

Problems solved by technology

[0003] ① Low energy efficiency

In the prior art, in a time frame, regardless of whether the channel quality of the current time frame is good or bad, the transmitter does not store the collected energy, and consumes all the energy to provide circuit work and perform AIT for information transmission, that is, the transmitter Both can only use the energy collected in one time frame, and cannot use the energy collected in other time frames

If AIT is still carried out in the case of poor channel conditions, the Wireless Hybrid Backscatter Communication Network (WHBCN) cannot achieve good performance (high throughput) even under the premise of sufficient energy. That is, hybrid transmitters cannot effectively use energy for information transmission

[0004] ②The working mode of the hybrid transmitter (Hybrid Transmitter, HT) in WHBCN is limited and inflexible

But this kind of work is not flexible, and it is impossible to flexibly allocate the working mode of HT in each time frame according to different channel qualities

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