Secrecy Capacity of a Gaussian Wiretap Channel With ADCs is Always Positive
| العنوان: | Secrecy Capacity of a Gaussian Wiretap Channel With ADCs is Always Positive |
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| المؤلفون: | Seung-Hyun Nam, Si-Hyeon Lee |
| المصدر: | IEEE Transactions on Information Theory. 68:1186-1196 |
| بيانات النشر: | Institute of Electrical and Electronics Engineers (IEEE), 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | FOS: Computer and information sciences, Computer science, Information Theory (cs.IT), Computer Science - Information Theory, Quantization (signal processing), Gaussian, Binary number, Data_CODINGANDINFORMATIONTHEORY, Library and Information Sciences, Converters, Topology, Computer Science Applications, Complex normal distribution, symbols.namesake, Secrecy, symbols, Special case, Information Systems, Communication channel |
| الوصف: | We consider a complex Gaussian wiretap channel with finite-resolution analog-to-digital converters (ADCs) at both the legitimate receiver and the eavesdropper. For this channel, we show that a positive secrecy rate is always achievable as long as the channel gains at the legitimate receiver and at the eavesdropper are different, regardless of the quantization levels of the ADCs. For the achievability, we first consider the case of one-bit ADCs at the legitimate receiver and apply a binary input distribution where the two input points have the same phase when the channel gain at the legitimate receiver is less than that at the eavesdropper, and otherwise the opposite phase. Then the result is generalized for the case of arbitrary finite-resolution ADCs at the legitimate receiver by translating the input distribution appropriately. For the special case of the real Gaussian wiretap channel with one-bit ADCs at both the legitimate receiver and the eavesdropper, we show that our choice of input distribution satisfies a necessary condition of optimal distributions for Wyner codes. This paper was submitted to IEEE Transactions on Information Theory, and was presented in part at ITW 2019 in Visby, Sweden in Aug 2019 |
| تدمد: | 1557-9654 0018-9448 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25e33abbb0c86dda1b6bf2eff4e00e37Test https://doi.org/10.1109/tit.2021.3128971Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....25e33abbb0c86dda1b6bf2eff4e00e37 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15579654 00189448 |
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