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Reliability-Oriented Resource Allocation in Short-Packet Backscatter Communications
DOI:10.1109/TVT.2024.3472093.png)
摘要
En 中文
在本文中,我们研究了一个短包反向散射通信 (BackCom) 网络,其中多个物联网 (IoT) 节点 (INs) 随后通过BackCom将其短包数据反向散射到信息接收器。为了提高被调查网络的可靠性,我们制定了一个优化问题,以通过联合优化专用能源 (ES) 的发射功率 (TP) 来最小化所有INs中的最大错误概率 (EP),每个IN处的短分组块长度和功率反射系数 (PRC)。该问题被公式化为混合整数非线性规划问题。为了解决这个问题,我们首先推导了ES处的最佳TP和每个IN处的最佳PRC的近似表达式,从而得出了两个利用最佳TP和PRC的子问题。然后,原始问题 (OP) 的最优解对应于在最差情况下具有较低EP的子问题的最优解。用连续变量代替整数变量后,证明了两个子问题的凸性。因此,可以通过凸工具解决两个子问题并利用整数转换方法来实现OP的解决方案。通过与几种基准方案的比较,仿真结果表明了该方案在EP方面的优越性。
Keyword:
Reliability
Optimization
Backscatter
Resource management
Signal to noise ratio
Receivers
Internet of Things
Channel estimation
Autonomous aerial vehicles
Throughput
Backscatter communications
short-packet communications
resource allocation
reliability
期刊
IF:
7.1
论文数:
1.8W
被引数:
6.6W
机构
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