Abstract:Due to the characteristics of random, dynamic, and complex arrangement of dense heterogeneous cellular network nodes, the secrecy performance of the system is more seriously affected by the non-ideal channel estimation in the actual communication scenario. However, the research on the secrecy performance analysis of the dense heterogeneous cellular network mainly focuses on the ideal scene, but never involves non-ideal scene. To solve this problem, this paper considers the characteristics and actual deployment of the system,and analyzes the secrecy performance of the system when there exist channel estimation errors. First, based on stochastic geometry, the security outage probability of K-tier dense heterogeneous cellular networks is deduced. Then the influence of partial parameters on system security performance is analyzed. Finally, the validity of theoretical derivation is verified by simulation.
XIE B, KUMAR A, ZHAO D, et al. On secure communication in integrated heterogeneous wireless networks [J]. International Journal of Information Technology Communications & Convergence, 2010, 1(1): 4-23. doi: 10.1504/IJITCC.2010.035224.
[2]
VALERO M, SANG S J, ULUAGAC A S, et al. Di-Sec: A distributed security framework for heterogeneous wireless sensor networks[C]. Proceedings of IEEE INFOCOM, 2012, 131(5): 585-593. doi: 10.1109/INFCOM.2012.6195801.
[3]
BLOCH M and BARROS J. Physical-layer Security: From Information Theory to Security Engineering[M]. Cambridge University Press, 2011: 290-308. doi: 10.1017/CBO9780511 977985.
[4]
WANG Huiming and ZHENG Tongxing. Physical layer security in heterogeneous cellular networks[J]. IEEE Transactions on Communications, 2016, 64(3): 1204-1219. doi: 10.1109/TCOMM.2016.2519402.
[5]
WU Huici, TAO Xiaofeng, LI Na, et al. Secrecy outage probability in multi-RAT heterogeneous networks[J]. IEEE Communications Letters, 2016, 20(1): 53-56. doi: 10.1109/ LCOMM.2015.2499748.
ZHONG Zhihao, LUO Wenyu, and PENG Jianhua. Secrecy performance analysis of cooperative transmission and cooperative jamming for multi-tier heterogeneous cellular networks[J]. Scientia Sinica Informationis, 2016, 46(1): 33-48. doi: 10.1360/N112015-00174.
[7]
DENG Yansha, WANG Lifeng, ELKASHLAN M, et al. Physical layer security in three-tier wireless sensor networks: A stochastic geometry approach[J]. IEEE Transactions on Information Forensics & Security, 2016, 11(6): 1128-1138. doi: 10.1109/TIFS.2016.2516917.
[8]
XU Xiaoming, YANG Weiwei, CAI Yueming, et al. On the secure spectral-energy efficiency tradeoff in random cognitive radio networks[J]. IEEE Journal on Selected Areas in Communications, 2016, 34(10): 2706-2722. doi: 10.1109/ JSAC.2016. 2605901.
[9]
TING A, CHIENG D, KWONG K H, et al. Dynamic backhaul sensitive network selection scheme in LTE-WiFi wireless HetNet[C]. IEEE International Symposium on Personal Indoor and Mobile Radio Communications, 2013: 3061-3065. doi: 10.1109/PIMRC.2013.6666672.
[10]
MUKHERJEE A and SWINDLEHURST A L. Robust beamforming for security in MIMO wiretap channels with imperfect CSI[J]. IEEE Transactions on Signal Processing, 2011, 59(1): 351-361. doi: 10.1109/TSP.2010.2078810.
[11]
PEI Minyan, WEI Jibo, WONG Kai-Kit, et al. Masked beamforming for multiuser MIMO wiretap channels with imperfect CSI[J]. IEEE Transactions on Wireless Communications, 2012, 11(2): 544-549. doi: 10.1109/TWC. 2011.120511.110567.
[12]
LIAO Weicheng, CHANG Tsunghua, MA Wingkin, et al. QoS-based transmit beamforming in the presence of eavesdroppers: An optimized artificial-noise-aided approach [J]. IEEE Transactions on Signal Processing, 2011, 59(3): 1202-1216. doi: 10.1109/TSP.2010.2094610.
[13]
JO H S, SANG Y J, XIA P, et al. Heterogeneous cellular networks with flexible cell association: A comprehensive downlink SINR analysis[J]. IEEE Transactions on Wireless Communications, 2011, 11(10): 3484-3495. doi: 10.1109/ TWC.2012.081612.111361.
[14]
CHEN Xiaoming. Physical layer security in multi-cell MISO downlinks with incomplete CSIA unified secrecy performance analysis[J]. IEEE Transactions on Signal Processing, 2014, 62(23): 6286-6297. doi: 10.1109/TSP. 2014.2362890.
[15]
GERBRACHT S, SCHEUNERT C and JORSWIECK E A. Secrecy outage in MISO systems with partial channel information[J]. IEEE Transactions on Information Forensics & Security, 2012, 7(2): 704-716. doi: 10.1109/TIFS. 2011.2181946.
[16]
DENG Yansha, WANG Lifeng, WONG K, et al. Safeguarding massive MIMO aided hetnets using physical layer security[C]. International Conference on Wireless Communications & Signal Processing, Nanjing, China, 2015: 1544-1566.