无线通信的各种运动模型。适用于移动通信、无线传感器网络等领域。 包括：Random walk、random waypoint、random direction、boundless simulation area、 gauss-markov等运动模型 - probabilistic random walk

这是最稳定的BP译码方式，就数值精度来说的话。-Belief-propagation decoding algorithm: Probabilistic decoding The algorithm works directly with probabilities. In terms of numerical precision, it is the most stable BP decoder, although it is very intensive in terms of exp()