Dataset from VR Streaming Server (Emulated) and Radio Access Network for Streaming Traffic

The dataset contains an experiment in  a site where UEs attach to a gNodeB that provides access to a streaming server that is stressed with high demanding transcoding workloads to emulate VR/AR processes. The UEs are realized through the Remote UE mode enabled by Amarisoft Simbox emulator, and the gNodeB is realized through the Amarisoft Callbox, which also provides the user plane function. The emulated VR streaming server is deployed as a Nginx pod in a Kubernetes cluster.

We rely on MonB5G sampling functions that feed monitoring data (CPU and RAN parameters) to the monitoring system. A streaming video server has been deployed with the help of a NGINX server. It provides video-on-demand and video streaming, which can be accessed by any user (or UE) for real-time reproduction. This VR video streaming emulation aids to assess the performance of the network and therefore the benefits that each solution has brought. The video “Big Buck Bunny” with h.264 encoding and a resolution of 1920x1080p has been used for the experiments.The description of dataset features are:
1-) Index Number,
2-) Time: Time of the experiment,
3-) N: number of VR streaming clients,
4-) C: Average CPU of VR streaming server [mc]
5-) O: Outbound traffic at the server average outbound traffic (O) flowing from the data interface of the video server. 
6-) R: Instantaneous downlink bit rate [Mbps],

The original video file information:

Video codec 

Advanced Video Codec (AVC) 

Width 

1920 pixels 

Height 

1080 pixels 

Display aspect radio 

16:9 

Duration 

10 min 34 s 

Max Bitrate 

16.7 Mb/s 

Frame rate 

30 FPS

本数据集包含一场在特定实验场景下开展的研究：用户设备（UE, User Equipment）接入演进型基站（gNodeB），该基站为承载高负载转码工作负载的流媒体服务器提供接入链路，以此模拟VR/AR应用流程。用户设备通过Amarisoft Simbox模拟器启用的远程UE模式实现模拟，演进型基站则由同时提供用户面功能的Amarisoft Callbox完成模拟。模拟的VR流媒体服务器以Nginx容器组（Pod）的形式部署于Kubernetes集群中。

本实验依托MonB5G采样功能，将监控数据（CPU与无线接入网参数）上传至监控系统。实验中部署了基于NGINX的流媒体视频服务器，可提供视频点播与流媒体服务，供任意用户（或用户设备）进行实时播放。本次VR流媒体模拟实验用于评估网络性能，进而验证各解决方案的实际增益。实验采用经h.264编码、分辨率为1920×1080p的"Big Buck Bunny"视频素材作为测试源。

数据集特征说明如下：
1. 序号
2. 时间：实验时刻
3. N：VR流媒体客户端数量
4. C：VR流媒体服务器平均CPU使用率[mc]
5. O：服务器出站流量，即视频服务器数据接口流出的平均出站流量
6. R：瞬时下行比特率[Mbps]

### 原始视频文件参数
| 参数项 | 参数详情 |
|----------------|------------------------------|
| 视频编码格式 | 高级视频编码（AVC, H.264） |
| 宽度 | 1920 像素 |
| 高度 | 1080 像素 |
| 显示宽高比 | 16:9 |
| 时长 | 10分34秒 |
| 最大比特率 | 16.7 Mb/s |
| 帧率 | 30 FPS |