Compute-and-forward over block-fading channels using algebraic lattices
Shanxiang Lyu, Antonio C. de A. Campello, Cong Ling, Jean‐Claude Belfiore · 2017
Previous approaches to compute-and-forward (C&F) are mostly based on quantizing channel coefficients to integers. In this work, we investigate the C&F strategy over block fading channels using Construction A over rings, so as to allow better quantization for the channels. Advantages in decoding error probabilities and computation rates are demonstrated, and the construction is shown to outperform the C&F strategy over the integers Z.