一种整体较优的RCPT码删除矩阵新算法

Global Optimized New Algorithm for Selecting RCPT Puncture Table

由于无线信道的时变、高误码等特性 ,要求信道编码方式不仅具有较强的抗误码能力 ,而且能够自适应的调整码率来适应无线信道状态的变化 .码率可变的 RCPT码能够实现这样的编码要求 ,但是 RCPT码的编译码性能取决于其删除矩阵的选取 .针对这一问题综合国内外的研究现状 ,提出了一种整体较优的求取 RCPT码删除矩阵的新算法 ,这种算法利用不同删除矩阵求取算法的不同适用性 ,达到了在高、低码率下都能够取得较好编译码效果的目的 .

The characteristics of wireless channel such as time variety and high BER requires not only strong error correcting capability of channel coding method but also the ability to adjust bit rate according to the state of wireless channel. The RCPT code can fulfill such requirement, while the performance of RCPT code lies on how we choose the puncture table. In this paper, a new global optimized algorithm for RCPT puncture table selecting was proposed, which is based on the relative present research. This algorithm achieves good coding and decoding result both in high and low bit rate by using different adaptability of different puncture tables.