Sensing-Communication Coexistence vs. Integration

Meng Liu, Minglei Yang, Zhaoming Zhang, Huifang Li, Fan Liu, Arumugam Nallanathan, Lajos Hanzo

2023IEEE Transactions on Vehicular Technology19 citationsDOI Open Access PDF

Abstract

The design options of sensing-communication coexistence (SCC) vs. integrated sensing and communications (ISAC) relying on non-orthogonal downlink transmission (NO-DLT) and transmit antenna selection are investigated. To be practical, both realistic residual hardware impairments (RHI) and imperfect successive interference cancellation are considered. The performance of the SCC and ISAC NO-DLT frameworks is characterized by deriving both the exact and the asymptotic outage probabilities (OPs) as well as the probability of successful target detection (PoD). Our numerical results demonstrate the accuracy of the theoretical analysis and confirm that: 1) The ISAC NO-DLT framework is superior to the SCC NO-DLT framework both in terms of its OP and PoD; 2) The realistic RHI degrades the S&C performance of both the SCC and ISAC NO-DLT frameworks.

Topics & Concepts

Telecommunications linkComputer scienceInterference (communication)ResidualTransmission (telecommunications)Electronic engineeringOutage probabilityImperfectAntenna arraySingle antenna interference cancellationAntenna (radio)Computer engineeringEngineeringTelecommunicationsAlgorithmFadingDecoding methodsChannel (broadcasting)PhilosophyLinguisticsRadar Systems and Signal ProcessingDistributed Sensor Networks and Detection AlgorithmsDirection-of-Arrival Estimation Techniques