Thats a unique idea.You should consider the following idea to enhance your idea so that it would impact uniquely: ,  investigate secure communications in uplink transmissions, where there are a base station (BS) with    $M$    receive antennas,    $K$    mobile users each with a single antenna, and an eavesdropper with    $N$    receive antennas. The closed-form expressions of the achievable ergodic secrecy sum rates (ESSRs) for a random    $k$    users selection scheme in the high and low signal-to-noise ratio regimes are presented. It is shown that the scaling behavior of ESSR with respect to the number of served users    $k$    can be quite different under different system configurations, determined by the numbers of the BS antennas and that of the eavesdropper antennas. In order to achieve a multiuser gain, two low-complexity user selection schemes are proposed under different assumptions on the eavesdropper’s channel state information. The closed-form expressions of the achievable ESSRs and the multiuser secrecy gains of the two schemes are also presented in both low and high SNR regimes.  observe that, as    $k$    increases, the multiuser secrecy gain increases, while the ESSR may decrease. Therefore, when    $N$    is much larger than    $M$   , serving one user with the strongest channel (Time Division Multiple Address-like) is a favorable secrecy scheme, where the ESSR scales with    $\sqrt {2\log K}$   .
['Hao Deng', 'Hui-Ming Wang', 'Jinhong Yuan', 'Wenjie Wang', 'Qinye Yin']
I am writing a research paper on a idea Secure Communication in Uplink Transmissions: User Selection and Multiuser Secrecy Gain
[{"from": "human", "value": "I am writing a research paper on a idea Secure Communication in Uplink Transmissions: User Selection and Multiuser Secrecy Gain"}, {"from": "gpt", "value": "Thats a unique idea.You should consider the following idea to enhance your idea so that it would impact uniquely: ,  investigate secure communications in uplink transmissions, where there are a base station (BS) with    $M$    receive antennas,    $K$    mobile users each with a single antenna, and an eavesdropper with    $N$    receive antennas. The closed-form expressions of the achievable ergodic secrecy sum rates (ESSRs) for a random    $k$    users selection scheme in the high and low signal-to-noise ratio regimes are presented. It is shown that the scaling behavior of ESSR with respect to the number of served users    $k$    can be quite different under different system configurations, determined by the numbers of the BS antennas and that of the eavesdropper antennas. In order to achieve a multiuser gain, two low-complexity user selection schemes are proposed under different assumptions on the eavesdropper\u2019s channel state information. The closed-form expressions of the achievable ESSRs and the multiuser secrecy gains of the two schemes are also presented in both low and high SNR regimes.  observe that, as    $k$    increases, the multiuser secrecy gain increases, while the ESSR may decrease. Therefore, when    $N$    is much larger than    $M$   , serving one user with the strongest channel (Time Division Multiple Address-like) is a favorable secrecy scheme, where the ESSR scales with    $\\sqrt {2\\log K}$   ."}]