Results 231 to 240 of about 8,632 (260)
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Secrecy Rate Pair Constraints for Secure Throughput
2014 IEEE Military Communications Conference, 2014Physical layer security, which is an alternative to traditional cryptographic methods, has emerged as a promising candidate to protect wireless transmissions from an eavesdropper. An important measure of physical layer security is the secrecy outage: the event when the instantaneous secrecy capacity, which for the considered scenario is the difference ...
Kyle Morrison, Dennis Goeckel
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Ergodic Secrecy Rates of Secure Wireless Communications
2014 IEEE Military Communications Conference, 2014Two unified analytical frameworks that facilitate the evaluation of the ergodic secrecy rates of Wyner wiretap channel in generalized fading environments without/with diversity receivers are developed. In contrast to prior work that is limited to only the Rayleigh fading environment, our new formulas expressed in terms of only the moment generating ...
Oluwatobi Olabiyi, Annamalai Annamalai
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MIMO multi-user secrecy rate analysis
2014 IEEE International Conference on Communications (ICC), 2014In this paper, we consider the broadcast channel with confidential messages and eavesdroppers (BCCE), where a multi-antenna base station simultaneously communicates to multiple potentially malicious users, in the presence of external eavesdroppers randomly located according to a Poisson point process (PPP).
Giovanni Geraci +4 more
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On the target secrecy rate for SISOME wiretap channels
2014 IEEE International Conference on Communications (ICC), 2014We propose a new framework for optimizing the target secrecy rate for SISOME wiretap channels when the instantaneous capacity of the eavesdropper's channel is not available at the transmitter. In our framework we introduce the effective secrecy throughput, a new optimization metric that implicitly captures the two key features of wiretap channels ...
Shihao Yan +4 more
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Secrecy Rates for Relay Selection in OFDMA Networks
2011 Third International Conference on Communications and Mobile Computing, 2011In this paper, we study the secrecy communication using physical layer security in OFDMA networks. The expressions of secrecy rates and outage probability are derived in OFDMA networks using Decode-and-Forward (DF) strategy. Monte Carlo simulations are carried out to validate our analysis.
Chunxiao Cai +2 more
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Secrecy Rate of Time Switched Transmit Diversity System
2011 IEEE 73rd Vehicular Technology Conference (VTC Spring), 2011Time switched transmit diversity (TSTD) system uses only one out of several transmit antennas at a time in order to exploit the benefit of transmit diversity while keeping the system simple by having only one RF chain. We show that while average rate of such a system remains similar to the capacity of the single transmit antenna, outage secrecy ...
Sinan Sinanovic +2 more
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On Ergodic Secrecy Rate for Gaussian MISO Wiretap Channels
IEEE Transactions on Wireless Communications, 2011A Gaussian multiple-input single-output (MISO) wiretap channel model is considered, where there exists a transmitter equipped with multiple antennas, a legitimate receiver and an eavesdropper, each equipped with a single antenna. We study the problem of finding the optimal input covariance that maximizes the ergodic secrecy rate subject to a power ...
Jiangyuan Li, Athina P. Petropulu
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Secrecy Rate of MISO Optical Wireless Scattering Communications
IEEE Transactions on Communications, 2018We consider the secrecy rate for the multiple-input single-output optical wireless scattering communication, where the detected signal can be characterized by discrete photoelectrons. Assuming a legitimate receiver and an eavesdropper, we propose two secure communication protocols, the non-jamming protocol, and the cooperative jamming protocol, where ...
Difan Zou, Chen Gong 0001, Zhengyuan Xu
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Optimization of secrecy rate in cooperative device to device communications
2017 IEEE 30th Canadian Conference on Electrical and Computer Engineering (CCECE), 2017In this paper, a cooperative device to device (D2D) communication system is studied while two transmitting devices communicate with one destination device in the presence of a passive eavesdropper. The second transmitting device cooperates with the first transmitting device and hence the transmission takes place is two phases.
Maryam Alibeigi +2 more
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An improved achievable secrecy rate for the relay-eavesdropper channel
2013 IEEE Wireless Communications and Networking Conference (WCNC), 2013This paper study information-theoretic security for a four-node relay-eavesdropper channel. We propose a new achievable scheme whose key idea is to combine noisy network coding for relay channels and the interference assisted strategy for wiretap channel with a helping interferer.
Peng Xu 0002 +3 more
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