A Secure ISAC Waveform Design Framework via Random Frequency and PRI Agility
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2025
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866908558527823872 |
|---|---|
| author | Boroujeni, Ali Khandan Rou, Hyeon Seok Bagheri, Ghazal de Abreu, Giuseppe Thadeu Freitas Köpsell, Stefan Ranasinghe, Kuranage Roche Rayan Schaefer, Rafael F. |
| author_facet | Boroujeni, Ali Khandan Rou, Hyeon Seok Bagheri, Ghazal de Abreu, Giuseppe Thadeu Freitas Köpsell, Stefan Ranasinghe, Kuranage Roche Rayan Schaefer, Rafael F. |
| contents | This paper presents a novel framework for enhancing the security, data rate, and sensing performance of integrated sensing and communications (ISAC) systems. We employ a random frequency and pulse repetition interval (PRI) agility (RFPA) method for the waveform design, where the necessary random sequences are governed by shared secrets. These secrets, which can be pre-shared or generated via channel reciprocity, obfuscate critical radar parameters like Doppler frequency and pulse start times, thereby significantly impeding the ability to perform reconnaissance from a passive adversary without the secret key. To further introduce enhanced data throughput, we also introduce a hybrid information embedding scheme that integrates amplitude shift keying (ASK), phase shift keying (PSK), index modulation (IM), and spatial modulation (SM), for which a low-complexity sparse-matched filter receiver is proposed for accurate decoding with practical complexity. Finally, the excellent range-velocity resolution and clutter suppression of the proposed waveform are analyzed via the ambiguity function (AF). |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_21162 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A Secure ISAC Waveform Design Framework via Random Frequency and PRI Agility Boroujeni, Ali Khandan Rou, Hyeon Seok Bagheri, Ghazal de Abreu, Giuseppe Thadeu Freitas Köpsell, Stefan Ranasinghe, Kuranage Roche Rayan Schaefer, Rafael F. Signal Processing This paper presents a novel framework for enhancing the security, data rate, and sensing performance of integrated sensing and communications (ISAC) systems. We employ a random frequency and pulse repetition interval (PRI) agility (RFPA) method for the waveform design, where the necessary random sequences are governed by shared secrets. These secrets, which can be pre-shared or generated via channel reciprocity, obfuscate critical radar parameters like Doppler frequency and pulse start times, thereby significantly impeding the ability to perform reconnaissance from a passive adversary without the secret key. To further introduce enhanced data throughput, we also introduce a hybrid information embedding scheme that integrates amplitude shift keying (ASK), phase shift keying (PSK), index modulation (IM), and spatial modulation (SM), for which a low-complexity sparse-matched filter receiver is proposed for accurate decoding with practical complexity. Finally, the excellent range-velocity resolution and clutter suppression of the proposed waveform are analyzed via the ambiguity function (AF). |
| title | A Secure ISAC Waveform Design Framework via Random Frequency and PRI Agility |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2509.21162 |