In this study, a novel gradual initial decoding (GID) technique is introduced to improve implicit transmission with bit flipping (ITBF) and implicit transmission with collection decoding (ITCD) techniques introduced in [1]. Further, two additional decoding techniques, namely, feedback implicit decoding (FID) and iterative implicit decoding (IID) are introduced for further improvement. It is numerically demonstrated that all proposed techniques presented here can significantly improve performance in implicit transmission and increase the transmission rate on the implicit sequence.