US 10,855,450 B1 · Secured and robust wireless communication system for low-latency applications

Abstract

There is provided a physical layer security (PLS) system for enhanced cryptographic security and diversity of transmitted data, the system comprising a transmitter for first, converting the data into a plurality of OFDM symbols; second, multiplexing the plurality of OFDM symbols into parallel M OFDM streams; and third, performing spatial interleaving (SI) on the parallel M OFDM streams using a secret key. The system further comprises a receiver for receiving and de-scrambling the transmitted plurality of data samples, wherein software-defined radio (SDR) units are used as the system transmitter and receiver.

Claims18

Dependent claims

A method of encrypting data using a physical layer security (PLS) system at a transmitter before transmission to a receiver for enhanced security and diversity of transmitted data, the method comprising the steps of:

first, converting the data into a plurality of orthogonal frequency-division multiplexing (OFDM) symbols;
second, multiplexing the plurality of OFDM symbols into parallel M OFDM streams;
third, performing spatial interleaving (SI) on the parallel M OFDM streams using a secret key,
wherein PLS system security is proportional to (N×M×L)!, wherein N refers to data or number of OFDM symbols, M is number of transmit antennas and L is interleaver depth which refers to system delay or latency and M≥2.

1 more element

Dependencies are inferred from the claim text.

Secured and robust wireless communication system for low-latency applications

Life of this patent

Secured and robust wireless communication system for low-latency applications

Life of this patent

Abstract

Claims18