Abstract
In this paper, we consider a multi-cell MISO downlink, where a multi-antenna base station (BS) sends messages to its intended user, while a passive eavesdropper tries to intercept the information in each cell. Physical layer security is employed in order to guarantee information security. Due to incomplete channel state information (CSI) at BSs, residue inter-cell interference exists even with coordinated beamforming, which exerts a great impact on the secrecy performance. In this paper, we conduct a unified performance analysis for physical layer security with incomplete CSI, and derives closed-form expressions of ergodic secrecy rate, secrecy outage probability, and interception probability, considering CSI estimation accuracy, transmit signal to noise ratio (SNR), and channel condition. We reveal some insights on the secrecy performance through asymptotic analysis. Furthermore, based on the derived theoretical results, we propose a CSI exchange amount allocation scheme. Finally, the simulations validate our theoretical claims.
| Original language | English |
|---|---|
| Article number | 6920086 |
| Pages (from-to) | 6286-6297 |
| Number of pages | 12 |
| Journal | IEEE Transactions on Signal Processing |
| Volume | 62 |
| Issue number | 23 |
| DOIs | |
| Publication status | Published - 2014 Dec 1 |
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All Science Journal Classification (ASJC) codes
- Signal Processing
- Electrical and Electronic Engineering
Cite this
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Physical layer security in multi-cell MISO downlinks with incomplete CSI - A unified secrecy performance analysis. / Chen, Xiaoming; Chen, Hsiao-Hwa.
In: IEEE Transactions on Signal Processing, Vol. 62, No. 23, 6920086, 01.12.2014, p. 6286-6297.Research output: Contribution to journal › Article
TY - JOUR
T1 - Physical layer security in multi-cell MISO downlinks with incomplete CSI - A unified secrecy performance analysis
AU - Chen, Xiaoming
AU - Chen, Hsiao-Hwa
PY - 2014/12/1
Y1 - 2014/12/1
N2 - In this paper, we consider a multi-cell MISO downlink, where a multi-antenna base station (BS) sends messages to its intended user, while a passive eavesdropper tries to intercept the information in each cell. Physical layer security is employed in order to guarantee information security. Due to incomplete channel state information (CSI) at BSs, residue inter-cell interference exists even with coordinated beamforming, which exerts a great impact on the secrecy performance. In this paper, we conduct a unified performance analysis for physical layer security with incomplete CSI, and derives closed-form expressions of ergodic secrecy rate, secrecy outage probability, and interception probability, considering CSI estimation accuracy, transmit signal to noise ratio (SNR), and channel condition. We reveal some insights on the secrecy performance through asymptotic analysis. Furthermore, based on the derived theoretical results, we propose a CSI exchange amount allocation scheme. Finally, the simulations validate our theoretical claims.
AB - In this paper, we consider a multi-cell MISO downlink, where a multi-antenna base station (BS) sends messages to its intended user, while a passive eavesdropper tries to intercept the information in each cell. Physical layer security is employed in order to guarantee information security. Due to incomplete channel state information (CSI) at BSs, residue inter-cell interference exists even with coordinated beamforming, which exerts a great impact on the secrecy performance. In this paper, we conduct a unified performance analysis for physical layer security with incomplete CSI, and derives closed-form expressions of ergodic secrecy rate, secrecy outage probability, and interception probability, considering CSI estimation accuracy, transmit signal to noise ratio (SNR), and channel condition. We reveal some insights on the secrecy performance through asymptotic analysis. Furthermore, based on the derived theoretical results, we propose a CSI exchange amount allocation scheme. Finally, the simulations validate our theoretical claims.
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UR - http://www.scopus.com/inward/citedby.url?scp=84910151930&partnerID=8YFLogxK
U2 - 10.1109/TSP.2014.2362890
DO - 10.1109/TSP.2014.2362890
M3 - Article
VL - 62
SP - 6286
EP - 6297
JO - IEEE Transactions on Signal Processing
JF - IEEE Transactions on Signal Processing
SN - 1053-587X
IS - 23
M1 - 6920086
ER -