Salem, A;
Masouros, C;
Clerckx, B;
(2022)
Security Tradeoffs in Rate Splitting Multiple Access: Optimal Signal Splitting vs Revealing.
In:
Proceedings of the IEEE International Conference on Communications Workshops, ICC Workshops 2022.
(pp. pp. 592-597).
IEEE
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Abstract
This paper considers the secrecy performance of rate splitting (RS) scheme in multi-user multiple-input single-output (MU-MISO) systems. The split of the users' messages into common and private parts can enhance the sum-rate of the communication systems. However, this split of the messages reveals part of the users' messages making them prone to eavesdropping. Thus, to consider the tradeoff between the sum-rate and the secrecy of RS, new analytical expressions for the ergodic sum-rate and ergodic secrecy rate are derived. Then, based on the analytical expressions of the ergodic rates, novel power allocation strategy that maximizes the sum-rate subject to a target secrecy rate is proposed and investigated. Our Monte Carlo simulations show a close match with our theoretical derivations. They also reveal that, by tuning the portion of the split signals, our power allocation approach provides a scalable tradeoff between sum-rate benefits and secrecy.
| Type: | Proceedings paper |
|---|---|
| Title: | Security Tradeoffs in Rate Splitting Multiple Access: Optimal Signal Splitting vs Revealing |
| Event: | 2022 IEEE International Conference on Communications Workshops (ICC Workshops) |
| Location: | Seoul, Republic of Korea |
| Dates: | 16th-20th May 2022 |
| ISBN-13: | 9781665426718 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/ICCWorkshops53468.2022.9814685 |
| Publisher version: | https://doi.org/10.1109/ICCWorkshops53468.2022.981... |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions. |
| Keywords: | Rate splitting, physical layer security, ZF |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10157873 |
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