论文标题
使用不完美的通道状态信息，URLLC在平行褪色通道上的有效容量
Effective Capacity of URLLC over Parallel Fading Channels with Imperfect Channel State Information
论文作者
论文摘要
本文通过不完美的通道状态信息（CSI）在有限的区块长度（FBL）上研究了点对点超可信的低潜伏期通信（URLLC）的有效能力。基于合理的假设和近似值，我们得出了有效的能力作为飞行员长度的函数，解码误差概率，传输功率和子通道数。然后，我们揭示了上述参数对有效能力的重大影响。得出了有效容量的封闭形式的下限，并提出了基于优化的算法以找到最佳的试点长度和解码误差概率。仿真结果验证了我们的理论分析，并表明闭合形式的下限非常紧。另外，通过对优化有效容量的模拟，提供了针对驾驶长度和解码误差概率优化的见解，以评估现实系统中的最佳参数。
This paper investigates the effective capacity of a point-to-point ultra-reliable low latency communication (URLLC) transmission over multiple parallel sub-channels at finite blocklength (FBL) with imperfect channel state information (CSI). Based on reasonable assumptions and approximations, we derive the effective capacity as a function of the pilot length, decoding error probability, transmit power and the sub-channel number. Then we reveal significant impact of the above parameters on the effective capacity. A closed-form lower bound of the effective capacity is derived and an alternating optimization based algorithm is proposed to find the optimal pilot length and decoding error probability. Simulation results validate our theoretical analysis and show that the closed-form lower bound is very tight. In addition, through the simulations of the optimized effective capacity, insights for pilot length and decoding error probability optimization are provided to evaluate the optimal parameters in realistic systems.
