On Reducing Error Rate of Data Protected Using Systematic Unordered Codes in Asymmetric Channels

Berger-invert codes are coding schemes used to protect communication channels against all asymmetric errors and to decrease power consumption. This paper proposes a method of constructing modified Berger-invert codes that relies on the choice of check parts with the smallest possible total weight and assignment of low-weight check parts to the most numerous subsets of data with the largest Hamming weights. As a result, the error rate of the transmitted data can be reduced by up to about 23.5% for a 8-bit bus at no cost (no extra bus lines or increase of hardware to implement encoding and decoding/checking circuitry).