FEC Compression Coding with Nubs for Higher Information Rates
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing Forward Error Correction (FEC) techniques in communications require significant redundancy to achieve low Bit Error Rates (BER), which reduces the information rate and increases overhead, making them inefficient for applications requiring high data transmission rates.
Innovation Solution
The proposed FEC with compression coding reduces redundancy by calculating determiners as functions of information bits, where the redundancy is compressed into a 'nub' that is transmitted separately, allowing for higher information rates while maintaining desired BER tolerances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If stronger FEC schemes are used to reduce BER, then error protection is improved, but information rate decreases and overhead increases
Solution Approach 1:
The patent segments the redundancy into two distinct components: determiners (syndromes) and nubs (compressed redundancy). This segmentation allows the determiners to provide error detection capability while the nubs provide compressed error correction redundancy, enabling the system to achieve strong error protection with reduced overall overhead compared to traditional FEC schemes
Solution Approach 2:
The patent extracts and transmits only the essential redundancy information (nubs) separately from the determiners. By taking out only the critical redundancy components needed for error correction and transmitting them separately, the system reduces the total overhead while maintaining strong error protection capabilities
2Reliability
If stronger FEC schemes are used to reduce BER, then error protection is improved, but device complexity and cost increase
Solution Approach 1:
The patent extracts and transmits only the essential redundancy information (nubs) separately from the determiners. By taking out only the critical redundancy components needed for error correction and transmitting them separately, the system reduces the total overhead while maintaining strong error protection capabilities
Solution Approach 2:
The patent changes the parameter representation of redundancy by compressing it into nubs. This parameter change allows the same error protection level to be achieved with fewer transmitted bits, reducing the complexity of transmission and processing circuitry
3Reliability
If stronger FEC schemes are used to reduce BER, then error protection is improved, but more heat is produced
Solution Approach 1:
The patent changes the parameter representation of redundancy by compressing it into nubs. This parameter change allows the same error protection level to be achieved with fewer transmitted bits, reducing the complexity of transmission and processing circuitry
Data Source
AI summary
Compression coding may be used with forward error correction (FEC) coding to provide higher information rates by reducing the proportion of redundant bits relative to information bits that are transmitted from a transmitter to a receiver. In one example, first determiners and second determiners are calculated from a set of information bits, where each first determiner is calculated from a different first subset of the information bits along a first dimension, and each second determiner is calculated from a different second subset of the information bits along a second dimension that differs from the first dimension. First and second nubs are calculated from the first and second determiners, respectively, each nub comprising a number of redundant bits that is less than the number of bits in the determiners from which the nub is calculated. The information bits and the nubs are transmitted over one or more communications channels.