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A New Outer Bound for the Gaussian Interference Channel with Confidential Messages

机译:具有机密信息的高斯干扰频道的新外在界限

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In this work, we derive new outer bounds for the two-user interference channel with confidential messages. An upper bound is found for the sum rate. When the interfering link of the first user is greater than 1, a new upper bound on 2R_1 + R_2 is obtained by studying a special form of the three-user interference channel. The bounds are then compared with known bounds for the symmetric interference channel under strong interference regime. In particular, examples are presented to showcase for channel parameters where positive secrecy rates are known to be achievable, the new bounds improve upon the known outer bounds on the secrecy capacity region. It is shown that, in some cases, the 2R_1 +R_2 bound also improves the bound on the sum rate.
机译:在这项工作中,我们为双用户干扰频道带来了新的外界,其中包含机密信息。找到总和率的上限。当第一用户的干扰链路大于1时,通过研究三用户干扰通道的特殊形式来获得2R_1 + R_2上的新上限。然后将界限与强干扰区域下对称干扰通道的已知范围进行比较。特别地,示出了展示用于展示信道参数的展示,其中已知是可以实现的正保密率,所以新的界限在密定容量区域上的已知外界改善。结果表明,在某些情况下,2R_1 + R_2绑定还改善了总和率的绑定。

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