@inproceedings{485aec1ac2414d3aac96b9e80c2ea1b9,
title = "Multi-Antenna Covert Communications in Random Wireless Networks",
abstract = "This paper studies multi-antenna covert communications coexisting with randomly located wardens and interferers. We analyze and optimize the covert throughput under a stochastic geometry framework. We first introduce covert outage probability and connectivity probability to respectively characterize covertness and reliability, and derive analytically tractable expressions for them. We then consider a worst-case covert communication, where the wardens can invariably maximize the covert outage probability by adjusting the detection thresholds of their detectors. Afterwards, we jointly design the optimal transmit power and transmission rate to maximize the covert throughput while satisfying the covertness requirement. Interestingly, it is found that the maximal covert throughput is invariant to either the density of interferers or the interfering power, regardless of the number of transmit antennas.",
keywords = "Covert communications, multi-antenna techniques, optimization, outage probability, stochastic geometry",
author = "Zheng, \{Tong Xing\} and Liu, \{Hao Wen\} and Zhao, \{Bing Qing\} and Qian Yang and Wang, \{Hui Ming\}",
note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 2019 IEEE International Conference on Communications, ICC 2019 ; Conference date: 20-05-2019 Through 24-05-2019",
year = "2019",
month = may,
doi = "10.1109/ICC.2019.8761741",
language = "英语",
series = "IEEE International Conference on Communications",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2019 IEEE International Conference on Communications, ICC 2019 - Proceedings",
}