Base station data cooperative caching model and method based on content similarity
A similarity, base station technology, applied in the field of base station data cooperative caching model based on content similarity, can solve the problem of less attention to the problem of microcell base station cache data acquisition overhead, etc.
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[0079] A specific embodiment of the present invention is described as follows: the system simulation adopts Matlab software, and the parameter setting does not affect generality; N=10 microcell base stations are randomly arranged in a 200m×200m network scene, and a single data is from the macrocell base station Get overhead α n0 Uniformly set to 1, base station time data sharing overhead α jn Is 0.3, the data requirement of a single base station is 10, the data distribution is uniformly distributed, the overall sample is set to 50, and the basic overhead of the base station is BS n Is 5.
[0080] The base station cooperative caching method of the present invention based on content similarity, the specific process is as follows:
[0081] Step 1: Initialize, set the number of iterations t=0, and each base station n∈N randomly generates a buffer strategy.
[0082] Step 2: Cache strategy selection strategy update (cycle):
[0083] ① All micro cells exchange information;
[0084] ② In each...
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