Multi-user security information energy simultaneous transmission method

Abstract

The invention discloses a multi-user security information energy simultaneous transmission method. The method comprises the following steps that an information energy sender equipped with a pluralityof antennas simultaneously sends confidential information signals with artificial redundant signals to a plurality of information receivers, energy receivers and illegal information eavesdroppers through utilization of a robust beam forming technology; and enabling the plurality of information receivers, energy receivers and illegal information eavesdroppers to receive preset signals. According tothe method, the information energy sender sends the confidential information through utilization of the beam forming technology of a plurality of antennas, and the confidential information signals are directionally transmitted to a plurality of legal information receivers, so the plurality of legal information receivers can receive the relatively strong confidential information signals, the energy receivers and eavesdroppers in other directions receive the relatively weak confidential information signals.

Description

Technical field [0001] The present invention considers the nonlinear energy receiving model closer to the actual situation and the error channel parameter estimation condition, and provides a physical layer safe multi-user safe information energy simultaneous transmission method that can adapt to the requirement of simultaneous transmission of information energy. Background technique [0002] Wireless energy-carrying communication (Simultaneous Wireless Information and Power Transfer, SWIPT) is a new type of wireless communication, which is different from traditional wireless communication which only transmits information. Wireless energy-carrying communication can simultaneously transmit traditional information wireless signals to wireless devices. Transmit energy signal. After the energy signal is received by a wireless device with an energy capture circuit, the wireless energy can be stored in the battery of the wireless device through a series of conversions. The captured ener...

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Problems solved by technology

This makes the design of the wireless energy carrying communication system based on the linear energy harvesting model deviate from the actual situation, and there is a large deviation from the actual application

Moreover, the current wireless portable energy communication mostly only considers one information receiver or the receiver has only a single antenna, and does not consider the confidential transmission of information in the presence of illegal eavesdroppers, which makes the application scenarios of wireless portable energy communication systems very popular. big limit

Moreover, many current wireless energy-carrying communication system designs assume that the sender can fully obtain channel parameter information, which is also impossible in practice.

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