论文标题
lonestar:全双工毫米波系统的模拟波束形成代码簿
LoneSTAR: Analog Beamforming Codebooks for Full-Duplex Millimeter Wave Systems
论文作者
论文摘要
这项工作开发了Lonestar,这是通过设计模拟波束成形的代码簿的设计全双工毫米波(MMWave)通信系统的新型推动力。 Lonestar代码手册可提供远光的增益和广泛的覆盖范围,同时减少通过传输和接收横梁的自我干扰,并在全双工MMWave收发器上接收光束。我们的设计框架通过耐受传输和接收光束成形增益的某些可变性来实现这一目标,从而战略性地塑造了光束,这些光束在空间上拒绝自我干扰,同时考虑了数字控制的模拟光束网络和自我干扰通道估计误差。通过利用自我干扰频道的连贯时间,MMWave系统可以在许多时间段中使用相同的Lonestar设计,以全面的方式使用多个下行链路链接用户对服务,而无需进行额外的自我解除取消。与使用常规代码手册的人相比,使用Lonestar代码手册的全双工MMWave系统可以减轻更高水平的自我干扰,耐受更多的交联干扰,并要求较低的SNRs以超越半双链操作,同时支持光束对准光束对齐。这使得lonestar成为潜在的独立解决方案,可在MMWave系统中同时进行传输和接收,从而从中得出其名称。
This work develops LoneSTAR, a novel enabler of full-duplex millimeter wave (mmWave) communication systems through the design of analog beamforming codebooks. LoneSTAR codebooks deliver high beamforming gain and broad coverage while simultaneously reducing the self-interference coupled by transmit and receive beams at a full-duplex mmWave transceiver. Our design framework accomplishes this by tolerating some variability in transmit and receive beamforming gain to strategically shape beams that reject self-interference spatially while accounting for digitally-controlled analog beamforming networks and self-interference channel estimation error. By leveraging the coherence time of the self-interference channel, a mmWave system can use the same LoneSTAR design over many time slots to serve several downlink-uplink user pairs in a full-duplex fashion without the need for additional self-interference cancellation. Compared to those using conventional codebooks, full-duplex mmWave systems employing LoneSTAR codebooks can mitigate higher levels of self-interference, tolerate more cross-link interference, and demand lower SNRs in order to outperform half-duplex operation -- all while supporting beam alignment. This makes LoneSTAR a potential standalone solution for enabling simultaneous transmission and reception in mmWave systems, from which it derives its name.