一种人与人和物到物业务共存下的异构蜂窝网络柔性接入策略

田辉; 何雷; 马文峰; 王聪

doi:10.11999/JEIT190676

一种人与人和物到物业务共存下的异构蜂窝网络柔性接入策略

doi: 10.11999/JEIT190676

陆军工程大学野战工程学院南京 210007

基金项目: 国家自然科学基金(61771486, 61671472)，江苏省博士后科研资助计划项目(2019K090)

详细信息

作者简介:
田辉：男，1987年生，讲师，研究方向为M2M通信、资源分配、协同通信

何雷：男，1978年生，讲师，研究方向为无人机智能平台、无线通信网络、军事运筹学

马文峰：男，1974年生，副教授，研究方向为物联网、5G通信

王聪：男，1975年生，副教授，研究方向为物联网、计算机网络

通讯作者:
田辉　jaytianhui@163.com

¹⁾本文中主要考虑业务对带宽资源的需求。
²⁾每一个代理节点按照其行为概率分布将0～1区间范围内，划分成不同的区域，其中每个行为对应的区域大小等于其概率。然后，代理节点产生一个0和1之间的随机数，选择随机数位于区域所对应的行为。
中图分类号: TN915.04
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出版历程
- 收稿日期: 2019-09-03
- 修回日期: 2020-02-16
- 网络出版日期: 2020-03-12
- 刊出日期: 2020-08-18

A Flexible Network Access Scheme in Heterogeneous Cell Networks with H2H and M2M Coexistence

College of Field Engineering, Army Engineering University, Nanjing 210007, China

Funds: The National Natural Science Foundation of China (61771486, 61671472), Jiangsu Planned Projects for Postdoctoral Research Funds (2019K090)

摘要

摘要:
针对人与人(H2H)和物到物(M2M)业务共存的异构无线网络，该文设计了一种根据业务特性的代理节点的网络选择策略，用博弈论对以保障两类业务服务质量(QoS)需求和网络负载均衡为目标的代理节点网络选择问题进行建模，并分析了该博弈模型纳什均衡(NE)的存在性和可行性；同时，提出了基于学习自动机的分布式网络-信道选择算法(DNCSALA)，求得该博弈的纳什均衡。仿真结果表明，所提算法能够获得与穷举搜索算法相近的性能，可满足共存场景中不同类型业务的QoS需求并提高网络资源利用率。
- 异构蜂窝网 /
- H2H和M2M共存 /
- 网络选择 /
- 博弈论
Abstract:
Considering the problem of agents’ network selection for Human-to-Human(H2H) and Machine-to-Machine (M2M) traffic in heterogeneous wireless networks, an agents’ network selection scheme based on the characteristic of traffic is designed. Game theory is adopted to solve the problem of network selection to satisfy difference in traffic’s Quality of Service (QoS) requirements. The existence and feasibility of the Nash Equilibrium (NE) of the proposed game are also analyzed. Then, a Distributed Network-Channe Selection Algorithm based on Learning Automata (DNCSALA) is presented to obtain the NE of the proposed game. In simulations, the proposed algorithm can achieve a near optimal performance compared to the exhaustive search, satisfy the QoS requirements of different types of traffic, and improves the efficiency of network resources.
- Heterogeneous cell networks /
- Human-to-Human(H2H) and Machine-to-Machine(M2M) coexistence /
- Network selection /
- Game theory
¹⁾本文中主要考虑业务对带宽资源的需求。

²⁾每一个代理节点按照其行为概率分布将0～1区间范围内，划分成不同的区域，其中每个行为对应的区域大小等于其概率。然后，代理节点产生一个0和1之间的随机数，选择随机数位于区域所对应的行为。

HTML全文

图 1 刚性业务与柔性业务满意度随分配带宽变化仿真图

下载: 全尺寸图片幻灯片

图 2 DNCSALA中刚性代理节点4的行动概率进化曲线图，(${\gamma ^{\rm ave}} = 5$ dB, ${M_f} = 4$, ${M_r} = 4$, ${{{b}}_{\rm req}} = \{ 0.5,0.6,0.7,0.7\} $)

下载: 全尺寸图片幻灯片

图 3 不同算法下全网和收益随SNR变化曲线图(仿真参数同图2)

下载: 全尺寸图片幻灯片

图 4 不同算法的满意度性能对比柱状图(仿真参数同图2)

下载: 全尺寸图片幻灯片

图 5 不同算法的负载均衡指数对比柱状图(仿真参数同图2)

下载: 全尺寸图片幻灯片

表 1 基于学习自动机的分布式网络选择算法(DNCSALA)

(1) 首先，初始化每个代理节点第0时刻的行为概率分布${ {{p} }_i}(0)$为$p_{ik}^j(0) = {1 / {\left(1 + \displaystyle\sum\nolimits_{j \in {\cal{N}}} {{K_j}} \right)}}$, $\forall i \in {\cal M},j \in {\cal N}$。每一个代理节点根据自　　己的行为概率分布${ {{p} }_i}(0)$选择一个行为^②；
(2) 在每一个时刻$t > 0$，每一个代理节点都根据当前时刻的概率分布${ {{p} }_i}(0)$选择一个行为(${s_i}(t)$)；
(3) 基站根据所有代理节点的行为，计算出收益，并将其广播给所有代理节点；
(4) 在获得反应函数之后，每一个代理节点根据式(16)，更新自己的行为概率分布, 其中$0 < {\zeta ^s} < 1$表示步长参数；　　　$\left. \begin{aligned} & {p_{ik}^j(t + 1) = p_{ik}^j(t) - {\zeta ^s}{\gamma _i}(t)p_{ik}^j(t),\quad \quad \quad\quad {s_i}(t) \ne {\rm{CH} }_{ik}^j} \\ & {p_{ik}^j(t + 1) = p_{ik}^j(t) + {\zeta ^s}{\gamma _i}(t)(1 - p_{ik}^j(t)),\quad \;\,{s_i}(t) = {\rm{CH} }_{ik}^j} \end{aligned} \right\}\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\qquad\qquad (16)$
(5) 如果对于任意$i \in {\cal M}$, 其行为概率分布存在一个元素接近1，确切地说等于0.99，那么算法停止。否则，跳转到步骤(2)。

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