Journal
ELECTRONICS
Volume 10, Issue 7, Pages -Publisher
MDPI
DOI: 10.3390/electronics10070776
Keywords
directional modulation; phased arrays; bit error rate; secure communication
Categories
Funding
- Universitat Autonoma de Barcelona
- Spanish Ministry of Science, Innovation and Universities [RTI2018-096019-B-C33]
- FEDER funds
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This study presents a method to evaluate the BER performance of dynamic DM efficiently and accurately for standard modulation schemes, and demonstrates the advantages and limitations of various DDM configurations. The proposed approach is also used to showcase a non-iterative DDM synthesis with restrictions in the BER response.
Directional modulation (DM) has been proposed as a technique to enhance physical layer security of wireless transmissions. In DM, the improvement of security is achieved by increasing the transmitted power in such a way that the bit error rate (BER) is degraded in the observation angles out of the desired secure direction. The performance of DM in terms of BER is typically evaluated by transmitting a stream of symbols for every observation angle, but this approach can be time consuming. In this communication, we propose an approach to evaluate, accurately and efficiently, the BER of dynamic DM (DDM) for standard modulation schemes. Several DDM configurations will be tested to illustrate the benefits and limitations of the evaluation method. The proposed approach is also used to present a non-iterative DDM synthesis with restrictions in the BER response.
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