雾无线接入网中的多层协作缓存方法

doi:10.11959/j.issn.1000-436x.2019093

Abstract

Abstract:

Aiming at the problem of reducing the load of the backward link in the edge buffer and fog wireless access network technology,a multi-tier cooperative caching scheme in F-RAN was proposed to further reduce the backhaul traffic load.In particular,by considering the network topology,content popularity prediction and link capacity,the optimization problem was decomposed into knapsack subproblems in multi-tiers,and effective greedy algorithms were proposed to solve the corresponding subproblems.Simulation results show that the proposed multi-tier cooperative caching scheme can effectively reduce the backhaul traffic and achieve relatively high cache hit rate.

Key words: fog radio access network, cooperative caching, backhaul traffic load, content popularity

CLC Number:

TN915

Yanxiang JIANG,Chengyu XIA. Multi-tier cooperative caching in fog radio access network[J]. Journal on Communications, 2019, 40(9): 116-123.

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Multi-tier cooperative caching in fog radio access network

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