Abstract
This paper considers simultaneous wireless information and power transfer (SWIPT) in a multiple-input multiple-output (MIMO) wiretap channel with energy harvesting receivers. The main objective is to keep the probability of the legitimate user's achievable secrecy rate outage as well as the energy receivers' harvested energy outage as caused by CSI uncertainties below given thresholds. This probabilistic-constrained secrecy rate maximization problem presents a significant analytical and computational challenge since any closed-form for the probabilistic constraints with log-det functions is intractable. In this paper, we address this challenging issue using convex restrictions. In particular, we derive decomposition-based large deviation inequalities to transform the probabilistic constraints into second-order cone (SOC) constraints which are easier to handle. Then we show that a robust safe solution can be obtained through solving two convex sub-problems in an alternating fashion.
Original language | English |
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Title of host publication | 2016 IEEE Globecom Workshops (GC Wkshps) |
Publisher | IEEE |
ISBN (Electronic) | 9781509024827 |
DOIs | |
Publication status | Published - 9 Feb 2017 |
Event | 2016 IEEE Globecom Workshops - Washington, United States Duration: 4 Dec 2016 → 8 Dec 2016 |
Conference
Conference | 2016 IEEE Globecom Workshops |
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Abbreviated title | GC Wkshps 2016 |
Country/Territory | United States |
City | Washington |
Period | 4/12/16 → 8/12/16 |
ASJC Scopus subject areas
- Communication
- Computer Networks and Communications
- Electrical and Electronic Engineering