2021/10/10 by Nikolaos I. Miridakis, Miridakis, Nikolaos I., Theodoros A. Tsiftsis +7
Engineering · #Advanced Wireless Communication Technologies #FOS: Computer and information sciences #Indoor and Outdoor Localization Technologies #Information Theory (cs.IT) #Satellite Communication Systems #Underwater Vehicles and Communication Systems
paper · pdf · doi:10.48550/arxiv.2110.04736
openalex publication_date 2021/10/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A multiuser multiple-input multiple-output wireless communication system is\nanalytically studied, which operates with the aid of a reconfigurable\nintelligent surface (RIS). The intermediate RIS is equipped with multiple\nelements and operates via random phase rotations to simultaneously serve\nmultiple users. Independent Rayleigh fading conditions are assumed among the\nincluded channels. The system performance is analytically studied when the\nlinear yet efficient zero-forcing detection is implemented at the receiver. In\nparticular, the outage performance is derived in closed-form expression for\ndifferent system configuration setups with regards to the available channel\nstate information at the receiver. Further, a joint coherent/noncoherent linear\ndetection is analytically presented. Finally, some new engineering insights are\nprovided, such as how the channel state information and/or the volume of\nantenna/RIS arrays impact on the overall system performance as well as the\narising efficiency on the performance/complexity tradeoff by utilizing the\njoint coherent/noncoherent scheme.\n