在次GHz传感器网络中,信标成功率与网关密度对比
Başak Can1, Bora Karaoğlu1, Srikar Potta1
1Amazon Lab126, 1100 Enterprise Way, Sunnyvale, CA 94089, USA.
Sensors (Basel, Switzerland)
|December 9, 2023
概括
物联网网络中的多个网关 (GW) 的干扰可能会导致数据包丢失. 这项研究模拟了碰撞,分析了GW密度和调制,以优化性能和减少广域网 (WAN) 中的数据损失.
科学领域:
- 无线通信网络是无线通信网络.
- 物联网 (IoT) 的物联网 (IoT) 的物联网.
- 网络性能分析分析 网络性能分析
背景情况:
- 多重网关 (GW) 能够在广域网 (WAN) 中实现物联网 (IoT) 传感器连接.
- 终端节点 (ENs) 通过定期信标发现网关 (GWs),增强覆盖范围的多样性.
- 从附近的电力发电站同时传输的信标会导致干扰和碰撞,影响网络可靠性.
研究的目的:
- 分析网络内部干扰对共存网关 (GW) 的影响.
- 确定物联网WAN中可以共存的GW的最大数量.
- 开发一种新的碰撞模型,考虑中等访问控制 (MAC) 和物理 (PHY) 层效应.
主要方法:
- 开发一种新的碰撞模型,将部分重叠时间和碰撞事件的相对功率纳入其中.
- 分析碰撞和数据包丢失率之间的关系.
- 使用分析方法 (用于验证) 和基于现场测量数据的模拟方法进行性能评估.
主要成果:
- 该研究量化了干扰对GW共存和数据包丢失的影响.
- 使用高斯频率转换键 (GFSK) 调制的数值结果.
- 较大的信标间隔和频率跳跃减少信标损失,但增加采集延迟.
- 增加的GW密度减少了由于丰富的信标的网关发现延迟.
结论:
- 这些发现为选择低位率,窄带宽物联网应用程序的GFSK调制参数提供了指导.
- 优化信标间隔和使用频率跳跃对于管理信标损失和延迟权衡至关重要.
- 理解GW密度效应是物联网WAN中高效的网关发现的关键.
关键词:
载体与干扰的比率是载体与干扰的比率.美国GFSKGFSK这是一个IEEE 802.15.4标准.物联网 (IoT) 的物联网 (IoT) 的物联网.广域网 (WAN) 是一个广域网.信号灯碰撞碰撞 信号灯碰撞灯塔间隔是一个信号间隔.频率跳跃的频率跳跃.门户 门户 门户 门户 门户延迟时间 延迟时间传感器 传感器 传感器更多相关视频
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