论文标题
频道感知有限的连续继电器和有限的块长度编码
Channel-Aware Ordered Successive Relaying with Finite-Blocklength Coding
论文作者
论文摘要
连续的继电器可以通过允许源和继电器同时传输消息来提高传输速率，但可能会导致严重的Relay间干扰（IRI）。已经提出了IRI取消计划来减轻IRI。但是，干扰取消方法具有高误差传播的高风险，导致有限的区块长度方案中严重的传输率损失。因此，与有限块长度编码（FBC）连续解码的共同解码仍然是一个挑战。在本文中，我们提出了具有有限块长度编码（CAO-SIR-FBC）的优化频道有序连续的继电器协议，该协议可以通过仔细调整继电器传输顺序和速率来恢复速率损失。我们分析了CAO-SIR-FBC方法的平均吞吐量，该方法基于高信号到噪声状态（SNR）中的封闭式表达。平均吞吐量分析和模拟表明，在光谱效率方面，CAO-SIR-FBC优于常规的两次循环半偶联中继。
Successive relaying can improve the transmission rate by allowing the source and relays to transmit messages simultaneously, but it may cause severe inter-relay interference (IRI). IRI cancellation schemes have been proposed to mitigate IRI. However, interference cancellation methods have a high risk of error propagation, resulting in a severe transmission rate loss in finite blocklength regimes. Thus, jointly decoding for successive relaying with finite-blocklength coding (FBC) remains a challenge. In this paper, we present an optimized channel-aware ordered successive relaying protocol with finite-blocklength coding (CAO-SIR-FBC), which can recover the rate loss by carefully adapting the relay transmission order and rate. We analyze the average throughput of the CAO-SIR-FBC method, based on which a closed-form expression in a high signal-to-noise regime (SNR) is presented. Average throughput analysis and simulations show that CAO-SIR-FBC outperforms conventional two-timeslot half-duplex relaying in terms of spectral efficiency.
