Storage method for Viterbi decoder survival path in wireless sensor network node
A wireless sensor and surviving path technology, applied in transmission systems, energy-saving ICT, digital transmission systems, etc., can solve the problem of high circuit power consumption, and achieve the effect of reducing circuit power consumption and reducing switching activity
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[0017] The present invention and its effects will be further described below in conjunction with the embodiments and accompanying drawings.
[0018] The present invention can be divided into following steps in concrete implementation process:
[0019] Step 1. The register pointer is introduced on the basis of the traditional register exchange structure. The corresponding relationship between the state and the path is realized through the register pointer. The register pointer always points to the state corresponding to the current storage path of the register. The physical address of the register and the physical address of the register always maintain a one-to-one correspondence. For example, a certain register pointer changes from P0 to P2, which indicates that the register that saved the path of state S0 at the previous moment becomes the path of saving state S2 at the current moment.
[0020] Step 2. Solve the pointer attribution problem. In the decoding process, when t...
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