Results 171 to 180 of about 465 (189)

Achievable ergodic secrecy rate for MIMO SWIPT wiretap channels

2015 IEEE International Conference on Communication Workshop (ICCW), 2015
In this paper, we study the multiple-input multiple-output (MIMO) wiretap channel performing simultaneous wireless information and power transfer (SWIPT), where there are a multiple-antenna base station (BS), a multiple-antenna information decoding (ID) user, and a multiple-antenna energy harvesting (EH) user.
Jun Zhang 0023, Chau Yuen, Chao-Kai Wen, Shi Jin 0002, Kai-Kit Wong, Hongbo Zhu 0002   +5 more
openaire   +1 more source

Ergodic Secrecy Rate for Multiple-Antenna Wiretap Channels With Rician Fading

IEEE Transactions on Information Forensics and Security, 2011
A Gaussian multiple-antenna wiretap channel model is considered, where there exists a transmitter equipped with multiple antennas, a legitimate receiver equipped with a single antenna, and an eavesdropper equipped with multiple antennas. We study the problem of finding the optimal input covariance that maximizes the ergodic secrecy rate subject to a ...
Jiangyuan Li, Athina P. Petropulu
openaire   +1 more source

On ergodic secrecy rate of multiuser MISO downlink wiretap channel

2014 12th International Conference on Signal Processing (ICSP), 2014
In this paper, we consider the problem of secure communication in multiuser downlink wiretap networks where there exist a base-station (BS) equipped with multiple antennas, multiple legitimate receivers and a passive eavesdropper. The transmitter simultaneously transmits an information signal and artificial noise (AN) separately to the intended ...
Hongbai Dong, Shenghui Wang
openaire   +1 more source

Ergodic Secrecy Rate for Gaussian MISO Wiretap Channels with Non-Trivial Covariance

2010 IEEE Global Telecommunications Conference GLOBECOM 2010, 2010
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 achieves ergodic secrecy rate subject to a power constraint
Jiangyuan Li, Athina P. Petropulu
openaire   +1 more source

Ergodic Secrecy Rate of Randomly Deployed Cellular Networks Enhanced by Artificial Noise

2017 IEEE Wireless Communications and Networking Conference (WCNC), 2017
As the future cellular networks tend to be randomly deployed and equipped with more antennas, we study the enhanced secrecy rate of multiple- input multiple-output (MIMO) systems with a stochastic geometry approach. To avoid intractable computational complexity and to have a deep insight into the security performance of such networks, we derive a ...
Hui Chen 0008, Xiaofeng Tao 0001, Na Li 0001, Zhu Han 0001   +3 more
openaire   +1 more source

Ergodic Secrecy Rate of K -user MISO Broadcast Channel with Improved Random Beamforming

2020 IEEE Wireless Communications and Networking Conference (WCNC), 2020
In this paper, we study the secrecy performance of multiple-input single-output (MISO) wiretap channel with random beamforming (RB), where the eavesdropper is equipped with multiple antennas. In traditional RB schemes, the transmitter utilizes only one antenna to emit information signal and adopts the rest antennas to produce a random beamforming ...
Ye Fan 0006, Xuewen Liao, Zhenzhen Gao
openaire   +1 more source

Ergodic secrecy rate for Gaussian MISO wiretap channels with Rician fading

2010 Conference Record of the Forty Fourth Asilomar Conference on Signals, Systems and Computers, 2010
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, Shuangyu Luo, Athina P. Petropulu   +2 more
openaire   +1 more source

On the ergodic secrecy rate of multiple-antenna wiretap channels using artificial noise and finite-rate feedback

2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications, 2011
We consider the problem of secure communication in wireless fading channels in the presence of quantized version of the receivers channel sate information at transmit side. The transmitter has multiple antennas and is able to simultaneously transmits an information bearing signal and artificial noise.
Liang Sun 0007, Shi Jin 0002
openaire   +1 more source

Ergodic secrecy sum rate maximization in downlink sparse code multiple access network

2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC), 2017
Sparse code multiple access (SCMA) has been recognized as a promising candidate technique for fifth generation (5G) cellular network to improve spectral efficiency (SE). In this paper, physical layer security (PLS) in a downlink single-input single-output (SISO) SCMA system is investigated, which includes one base station (BS), multiple legitimate ...
Dan Huo, Zhi Zhang, Qian Zhou, Qixiang Tang, Zhibin Huo   +4 more
openaire   +1 more source

Performance Analysis of Ergodic Secrecy Rates in Massive MIMO-NOMA Networks with Zero-Forcing Precoding

2019 International Conference on Advanced Technologies for Communications (ATC), 2019
In this paper, we investigate the secrecy performance of massive multiple-input multiple-output (MIMO) nonorthogonal multiple access (NOMA) networks with the presence of a passive eavesdropper. Based on the estimated channel state information in an uplink training phase, the base station precodes the confidential information using zero-forcing ...
Hong T. Nguyen, Nam-Phong Nguyen, Anh T. Pham, Chuyen T. Nguyen   +3 more
openaire   +1 more source