check bit sum

基本解釋

By simplifying the message sent from check nodes to bit nodes, the complexity of the algorithm approaches that of the "mini-sum" algorithm.
該算法通過對校驗節(jié)點傳遞給比特節(jié)點的信息進行有效簡化，使計算復雜度接近“最小和”算法。
Then it introduces receiving signal as reliability evaluate or weighted coefficient of hard-decision, consequently presents weighted bit-flipping decoding algorithm based on check sum.
在此基礎上引入接收信號作為可靠性評估，使評估值作為硬判決的加權系數(shù)，從而提出基于校驗和的加權位翻轉解碼算法。