Weighted sum codes for error detection and their comparison with existing codes
Anthony J. McAuley · IEEE/ACM Transactions on Networking · 1994
Describes a new family of error detection codes called weighted sum codes. These codes are preferred over four existing codes (CRC, Fletcher checksum, Internet checksum, and XTP CXOR), because they combine powerful error detection properties (as good as the CRC) with attractive implementation properties. One variant, WSC-1, has efficient software and hardware implementations; while a second variant, WSC-2, is almost as efficient in software (still significantly better than CRC) and offers commutative processing (that enables efficient out-of-order, parallel, and incremental update processing).>