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发明公开
CN108134997A 一种基于星座重叠和噪声聚合的非对称隐私保护方法 有权

一种基于星座重叠和噪声聚合的非对称隐私保护方法
摘要：
本发明公开了一种基于星座重叠和噪声聚合的非对称隐私保护方法，包括以下步骤：1)用户A估计得到中继R到用户A的信道系数 及中继R到用户B的信道系数用户B估计得到中继R到用户A的信道系数 及中继R到用户B的信道系数 2)用户A及用户B同时向中继R发送信号 及 ，中继R对接收到的信号进行放大，然后分别广播给用户A及用户B；3)得 的判决 得的判决 4)在第二信息传输阶段的第一时隙内，用户A及用户B同时向中继R发送信号 及 5)得的判决及 的判决，完成基于星座重叠和噪声聚合的非对称隐私保护，该方法能够同时满足用户高优先级信息及低优先级信息对安全性及可靠性的差异化需求。
摘要（英）：

The invention discloses an asymmetric privacy protection method based on constellation overlapping and noise aggregation. The method comprises the following steps that 1), a user A carries out estimation to obtain a channel coefficient h<(H)> from a relay R to the user A and the channel coefficient h
<(H)> from the relay R to a user B, and the user B carries out the estimation to obtain thechannel coefficient h<(H)> from the relay R to the user A and the channel coefficient h
<(H)>from the relay R to the user B; 2), the user A and the user B sends signals x<(H)> and x<(H)>to the relay R at the same time, the relay R amplifies the received signals and broadcasts the amplified signals to the user A and the user B; 3), decision s<(H)>-caret of s<(H)> is obtained,and the decision s<(H)>-caret of s<(H)> is obtained; 4), in a first time slot of a second information transmission phase, the user A and the user B sends the signals x<(L)> and x<(L)> to the relay R at the same time; and 5), the decision of s<(L)> and the decision of the s<(L)> are obtained, thereby finishing the asymmetric privacy protection based on the constellation overlapping and noise aggregation. According to the method, differentiated demands of high priority information and low priority information of the users for the security and reliability can be satisfied atthe same time.

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