摘要
由于多层异构蜂窝网络节点的随机性、灵活性、复杂性等特点引起的层内干扰及层间干扰不容忽视,同时导致基于干扰的上行评估极为复杂。为此,从多层蜂窝网络自身结构和实际多信道环境特点出发,结合小区偏置及频率分割方案,采用随机几何理论推导多层异构蜂窝网络的用户在多信道环境下的上行平均遍历速率。实验结果表明采用频率分割方案能提高多层异构网络中用户的平均上行遍历速率。
Due to the characteristics of random,flexible,and complex arrangement of nodes in multi-tier heterogeneous cellular network,intra-tier and inter-tier interference cannot be ignored,which becomes more complicated when analyzing the uplink network performance. So this paper considers the structure characteristic and the practical multi-channel environment of the multi-tier heterogeneous network,combines cell bias and frequency division scheme,based on stochastic geometry theory,the user of multi-tier heterogeneous cellular network uplink average ergodic rate is derived in multi-channel environment. Experimental results show that using the frequency division scheme can improve the average upstream ergodic speed of users in multi-tier heterogeneous network.
作者
胡晗
姚力
杨洁
潘子宇
HU Han1, YAO Li2, YANG Jie3 ,PAN Ziyu1,3(1. Jiangsu Key Lab of Wireless Communications,Nanjing University of Posts and Telecommunications, Nanjing 210003, China; 2. National Intemet Emergency Center,Beijing 100029, China; 3. Communication Engineering Department, Nanjing Institute of Technology, Nanjing 211167, Chin)
出处
《计算机工程》
CAS
CSCD
北大核心
2018年第8期127-134,共8页
Computer Engineering
基金
国家自然科学基金(61401225
61701221
61601244
61701255)
江苏省自然科学基金(BK20140894
BK20160781)
江苏省高校自然科学基金(16KJB510013)
关键词
异构蜂窝网络
频率分割
小区偏置
上行
随机几何
heterogeneous cellular network
spectrum partition
cell biased
upfink
stochastic geometry
