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  1. How can we communicate reliably in the presence of unpredictable and potentially debilitating interference? As wireless communication becomes ever more ubiquitous, congestion and interference become increasingly inevitable, especially in contested scenarios. We have recently proposed a simple and practical method that uses packet repetition and multi-antenna reception to build two mixed signal and interference matrix views that contain the same packet in their span – in what we call signal alignment. This enables geometric/algebraic packet recovery via subspace intersection backed by theoretical guarantees – even in the face of adverse interference. A drawback is that the rate is halved owing to the repetition. This paper introduces a repetitionless signal alignment strategy that guarantees interference excision at controllable rate loss, which can be made practically negligible. This new family of signal alignment schemes is based on judicious linear precoding that can also be combined with error control coding. Various precoder designs are introduced and the redundancy split between the linear precoder and the Galois field (error control) encoder is considered in simulations to assess the right trade-off between interference excision and fading / random error control. 
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    Free, publicly-accessible full text available July 7, 2026
  2. Free, publicly-accessible full text available April 6, 2026
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