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The wiretap channel introduced by Wyner [1] in 1975 consists of a transmitter with a confidential message for an intended receiver that needs to be kept secret from an eavesdropper. The secrecy capacity of the wiretap channel quantifies the maximum rate at which a transmitter can reliably send a secret message to its intended recipient without it being decoded by an eavesdropper. While the secrecy...
We study the Gaussian MISO wiretap channel with a transmitter, a legitimate receiver, an eavesdropper and an external helper, where the transmitter and the helper have an arbitrary number of antennas but the intended receiver and the eavesdropper have only one antenna. The transmitter sends confidential messages to its intended receiver, while the helper transmits jamming signals independent of the...
We study the Gaussian MIMO wiretap channel with a transmitter, a legitimate receiver, an eavesdropper and an external helper, each equipped with multiple antennas. The transmitter sends confidential messages to its intended receiver, while the helper transmits jamming signals independent of the source message to confuse the eavesdropper. The jamming signal is assumed to be treated as noise at both...
A uniformly distributed hopping pattern suitable for M-levelled M-ary frequency shift keying (MMFSK) and multi-tone MMFSK (M3FSK) modulation schemes is proposed. Compared to randomly generated and some purposely designed codes, uniformly distributed codes show better BER performance in a powerline communication (PLC) environment. These codes are also efficient in terms of spectral usage because they...
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