Secure Transmission Scheme in K-Tier Dense Heterogeneous Cellular Networks with Imperfect Channel State Information
2017 ◽
Vol 66
(2)
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pp. 1519-1532
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2012 ◽
Vol 34
(6)
◽
pp. 1463-1468
2017 ◽
Vol 66
(9)
◽
pp. 8129-8138
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