RT Conference Proceedings T1 On the error probability of optimal codes in Gaussian channels under maximal power constraint A1 Vázquez Vilar, Gonzalo AB For an additive white Gaussian noise channel, we prove that Th. 41 in [Polyanskiy, Poor, Verdά2010] is a lower bound to the error probability of any channel code satisfying the maximal power constraint. In contrast, the (tighter) lower bound to the error probability in Eq. (20) in [Shannon 1959] only holds under equal power constraint. PB IEEE SN 978-1-5386-9291-2 YR 2019 FD 2019-07-07 LK https://hdl.handle.net/10016/33506 UL https://hdl.handle.net/10016/33506 LA eng NO Proceedings of: 2019 IEEE International Symposium on Information Theory (ISIT) NO This work has been funded in part by the European Research Council (ERC) under grant 714161, and by the Spanish Ministry of Economy and Competitiveness under grants IJCI-2015-27020 and TEC2016-78434-C3 (AEI/FEDER, EU). DS e-Archivo RD 26 may. 2024