Furthermore, a novel design of state metric unit is proposed such that the size of the total state metric can be effectively reduced by a half with slightly overhead of adders/subtractors.

• 另外，还提出了一个新的简化储存状态路径值记忆体的方法，此方法仅需增加少量的额外硬体架构便可减少一半的记忆体数量。