多信道环境下多层异构蜂窝网络的上行速率研究  

Research on Uplink Rate for Multi-tier Heterogeneous Cellular Network Under Multi-channel Environment

作　　者：胡晗[1] 姚力[2] 杨洁[3] 潘子宇[1,3] 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)

机构地区：[1]南京邮电大学江苏省无线通信重点实验室,南京210003 [2]国家互联网应急中心,北京100029 [3]南京工程学院通信工程学院,南京211167

出　　处：《计算机工程》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)

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.

关 键 词：异构蜂窝网络 频率分割 小区偏置 上行 随机几何 

分 类 号：TN929.5[电子电信—通信与信息系统]