This two-part paper studies a point-to-point resonant beam communication (RBCom) system, where two separately deployed retroreflectors are adopted to generate the resonant beam between the transmitter and the receiver, and analyzes the transmission rate of the considered system under both the quasi-static and mobile scenarios. Part I of this paper focuses on the quasi-static scenario where the locations of the transmitter and the receiver are relatively fixed. Specifically, we propose a new information-bearing scheme which adopts a synchronization-based amplitude modulation method to mitigate the echo interference caused by the reflected resonant beam. With this scheme, we show that the quasi-static RBCom channel is equivalent to a Markov channel and can be further simplified as an amplitude-constrained additive white Gaussian noise channel. Moreover, we develop an algorithm that jointly employs the bisection and exhaustive search to maximize its capacity upper and lower bounds. Finally, numerical results validate our analysis. Part II of this paper discusses the performance of the RBCom system under the mobile scenario.

翻译：本论文分为两部分，研究点对点谐振光束通信（RBCom）系统。该系统采用两个独立部署的逆向反射器，在发射机和接收机之间生成谐振光束，并分析了在准静态和移动场景下该系统的传输速率。第一部分聚焦于准静态场景，即发射机和接收机位置相对固定的情况。具体而言，我们提出了一种新的信息承载方案，采用基于同步的幅度调制方法，以减轻反射谐振光束引起的回波干扰。通过该方案，我们证明准静态RBCom信道等效于马尔可夫信道，并可进一步简化为幅度受限的加性高斯白噪声信道。此外，我们开发了一种联合使用二分法和穷举搜索的算法，以最大化其容量上下界。最后，数值结果验证了我们的分析。论文第二部分讨论了RBCom系统在移动场景下的性能。