Joint Precoding and RIS Phase Shift Design for Sum-Rate Maximization in RIS-Aided MISO Symbiotic Radio
Symbiotic radio (SR) has emerged as a spectral-efficient paradigm for Internet-of-Things networks. However, simultaneously optimizing coexisting primary and secondary transmissions remains a challenge. To address this, a joint precoding and RIS phase shift design is proposed to maximize the sum-rate in the reconfigurab...