Analysis and Optimization of Random Cache in Multi-Antenna HetNets with Interference Nulling
Signal Processing
2019-11-07 v1 Information Theory
math.IT
Abstract
From the perspective of statistical performance, this paper presents a framework for the per-user throughput analysis in random cache based multi-antenna heterogeneous networks (HetNets) with user-centric inter-cell interference nulling (IN). Using tools from stochastic geometry, an explicit expression for the per-user throughput is derived. Based on the analytical results, the optimal cache probabilities for maximizing the per-user throughput are analyzed. Theoretical analysis and numerical results reveal that the optimal random cache under interference nulling fully harvests the file diversity gain (FDG) and achieves a promising per-user throughput.
Cite
@article{arxiv.1911.02353,
title = {Analysis and Optimization of Random Cache in Multi-Antenna HetNets with Interference Nulling},
author = {Kangda Zhi and Guangji Chen and Ling Qiu and Xiaowen Liang and Chenhao Ren},
journal= {arXiv preprint arXiv:1911.02353},
year = {2019}
}
Comments
6 pages, 5 figures