Simplified High-Rate Punctured Convolutional Self-Doubly Orthogonal Codes

In this paper a new class of high-rate punctured convolutional codes that can be decoded using an iterative threshold algorithm is proposed. These codes are called simplified punctured convolutional self-doubly orthogonal codes (S-PCSO2C) of rate-R=b/(b+1), b>1 and are obtained by puncturing a rate 1/2 systematic convolutional mother code. S-PCSO2C are codes for which the original set of conditions, respected by PCSO2C, is simplified. Relaxing the doubly orthogonal conditions yields an important reduction of the constraint length of the systematic convolutional encoder which in turn reduce the implementation complexity and the total decoding latency at the cost of a very small performance degradation.