SISO Link Throughput via Spreading Codes
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Solution Overview
Problem
Current communication systems in aviation face limitations in data throughput due to the limited frequency spectrum and spatial multiplexing capabilities, necessitating an enhancement in data transmission efficiency between transceivers.
Innovation Solution
A communication system utilizing multiple single input, single output (SISO) links with spreading units and despreading units, employing unique spreading code sequences to increase data throughput, and integrating encoding, modulation, and error correction techniques to enhance data transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple SISO links with spreading codes are used, then data throughput is increased, but device complexity increases
Solution Approach 1:
The communication system divides the data transmission into N parallel SISO links, each handling a separate data sequence with its own spreading unit and despreading unit. This segmentation allows the total data throughput to be increased by processing multiple sequences simultaneously while keeping each individual processing path relatively simple and modular.
Solution Approach 2:
The spreading units and despreading units are designed as universal components that can process multiple data sequences in parallel. Each transceiver is equipped with N spreading units and N despreading units that can handle N different data sequences simultaneously, providing multi-functionality without requiring fundamentally different processing architectures for each sequence.
2Reliability
If spreading codes are used for multiple data sequences, then interference resistance is improved, but processing complexity increases
Solution Approach 1:
The system assigns different spreading codes to different data sequences, changing the parameter of the signal representation. By spreading each data sequence with a unique code, the system provides interference resistance through code division multiplexing while maintaining relatively simple processing at each link.
Solution Approach 2:
The despreading units use copies of the original spreading codes to recover the transmitted data sequences. Each receiving transceiver stores and uses copies of the N spreading codes assigned to different transmitters, allowing it to despread and recover all N data sequences through correlation processing.
Data Source
AI summary
A communication system with increased throughput for providing communication between transceivers via a wireless communication channel through multiple, N, single input, single output, SISO, links provided for a corresponding number, N, of data sequences, wherein each transceiver includes a transmitter having spreading units each configured to spread in an operation mode of the communication system a data sequence with an associated predefined unique spreading code sequence to generate a spread data sequence multiplexed to an antenna unit of the respective transceiver configured to transmit the spread data sequences via the wireless communication channel to antenna units of other transceivers of the communication system.