Results 261 to 270 of about 11,288 (290)

The achievable secrecy rate of MISO wiretap channels

2011 International Conference on Wireless Communications and Signal Processing (WCSP), 2011
In this paper, we study the achievable secrecy rate of the multiple input single output (MISO) wiretap channel, which consists of a transmitter, a legitimate receiver and multiple eavesdroppers. The transmitter is equipped with multiple antennas, while the receiver and all the eavesdroppers each have a single antenna. We assume that the transmitter has
Haiyang Zhang 0001, Bao-Yun Wang
openaire   +1 more source

Secrecy Rate Analysis Against Aerial Eavesdropper

IEEE Transactions on Communications, 2019
This paper studies the threat that an aerial eavesdropper can pose to terrestrial wireless communications, from an information-theoretic point of view. The achievable ergodic and the average $\epsilon $ -outage secrecy rates with no channel state information at the transmitter (i.e., with no CSIT) are analyzed for a transmitter–receiver pair on ...
Xin Yuan 0004, Zhiyong Feng 0001, Wei Ni 0001, Zhiqing Wei, Ren Ping Liu 0001, J. Andrew Zhang   +5 more
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Secrecy Rate Pair Constraints for Secure Throughput

2014 IEEE Military Communications Conference, 2014
Physical 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, 2014
Two 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
openaire   +1 more source

MIMO multi-user secrecy rate analysis

2014 IEEE International Conference on Communications (ICC), 2014
In 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, Sarabjot Singh, Jeffrey G. Andrews, Jinhong Yuan, Iain B. Collings   +4 more
openaire   +1 more source

On the target secrecy rate for SISOME wiretap channels

2014 IEEE International Conference on Communications (ICC), 2014
We 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, Giovanni Geraci, Nan (Jonas) Yang, Robert A. Malaney, Jinhong Yuan   +4 more
openaire   +1 more source

Secrecy Rates for Relay Selection in OFDMA Networks

2011 Third International Conference on Communications and Mobile Computing, 2011
In 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, Yueming Cai, Weiwei Yang 0001   +2 more
openaire   +1 more source

Secrecy Rate of Time Switched Transmit Diversity System

2011 IEEE 73rd Vehicular Technology Conference (VTC Spring), 2011
Time 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, Marco Di Renzo, Harald Haas   +2 more
openaire   +1 more source

On Ergodic Secrecy Rate for Gaussian MISO Wiretap Channels

IEEE Transactions on Wireless Communications, 2011
A 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
openaire   +1 more source

Optimization of secrecy rate in cooperative device to device communications

2017 IEEE 30th Canadian Conference on Electrical and Computer Engineering (CCECE), 2017
In 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, Abbas Taherpour, Saeed Gazor   +2 more
openaire   +1 more source