论文标题
随机NOMA具有跨阶段连续的干扰取消数据包恢复
Random NOMA With Cross-Slot Successive Interference Cancellation Packet Recovery
论文作者
论文摘要
常规的功率域非正交多访问（NOMA）依赖于精确的功率控制，这需要发射机处的实时通道状态信息。这项要求严重限制了其应用于未来的无线通信系统。为了解决这个问题，我们考虑没有电力分配的NOMA，在该问题中，我们利用随机通道褪色并进行机会性地进行连续的干扰取消（SIC）检测。为了减轻多用户干扰，我们提出了一个随机的Noma，用户以一定的概率随机传输其数据包。然后提出了跨插槽SIC数据包恢复方案，以恢复传输的数据包。我们将跨插槽SIC数据包恢复为马尔可夫过程，并提供吞吐量分析，以共同优化传输概率和用户的编码速率来最大程度地提高总和率。
Conventional power-domain non-orthogonal multiple access (NOMA) relies on precise power control, which requires real-time channel state information at transmitters. This requirement severely limits its application to future wireless communication systems. To address this problem, we consider NOMA without power allocation, where we exploit the random channel fading and opportunistically perform successive interference cancellation (SIC) detection. To mitigate the multi-user interference, we propose a random NOMA where users randomly transmit their data packets with a certain probability. Then a cross-slot SIC packet recovery scheme is proposed to recover transmitted data packets. We model the cross-slot SIC packet recovery as a Markov process, and provide a throughput analysis, based on which the sum rate is maximized by jointly optimizing the transmission probability and the encoding rate of users.
