Waveform Design and Performance Analysis for Full-Duplex Integrated Sensing and Communication

Integrated sensing and communication (ISAC) is a promising technology to fully utilize the precious spectrum hardware in wireless systems, which has attracted significant attentions recently. This paper studies ISAC for important challenging monostatic setup, where one single node wishes simultaneously sense radar target while communicating with receiver. Different from most existing schemes that rely on either radar-centric half-duplex (HD) pulsed transmission information embedding suffers extremely low rate, or communication-centric waveform degraded performance, we propose novel full-duplex (FD) scheme utilizes waiting time of conventional radars transmit signals. Compared embedding, proposed design can drastically increase also mitigate eclipsing near-target blind range issues, as long self-interference (SI) effectively suppressed. On other hand, compared waveform, better auto-correlation property it preserves classic sensing. Performance analysis developed by taking into account residual SI, terms probability detection ambiguity function sensing, well efficiency communication. Numerical results are provided show performance gain our over benchmark schemes.