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Secure Multiuser Beamforming With Movable Antenna Arrays

arXiv CS Thursday 04 June 2026, 04:00 UTC By Zhenqiao Cheng, Chongjun Ouyang, Boqun Zhao, Xingqi Zhang 1 min read
Key Points

arXiv:2601.05686v2 Announce Type: replace Abstract: A movable antenna (MA)-enabled secure multiuser transmission framework is developed to enhance physical-layer security. Novel expressions are derived to characterize the achievable sum secrecy rate based on the secure channel coding theorem. On this basis, a joint optimization algorithm for digital beamforming and MA placement is proposed to maximize the sum secrecy rate via fractional programming and block coordinate descent.

arXiv:2601.05686v2 Announce Type: replace Abstract: A movable antenna (MA)-enabled secure multiuser transmission framework is developed to enhance physical-layer security. Novel expressions are derived to characterize the achievable sum secrecy rate based on the secure channel coding theorem. On this basis, a joint optimization algorithm for digital beamforming and MA placement is proposed to maximize the sum secrecy rate via fractional programming and block coordinate descent. In each iteration, every variable admits either a closed-form update or a low-complexity one-dimensional or bisection search, which yields an efficient implementation. Numerical results demonstrate the effectiveness of the proposed method and show that the MA-enabled design achieves higher secrecy rates than conventional fixed-position antenna arrays.
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Originally published by arXiv CS Read original →

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