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首页> 外文会议>Information Sciences and Systems, 2009. CISS 2009 >A new outer bound for the gaussian interference channel with confidential messages
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A new outer bound for the gaussian interference channel with confidential messages

机译：具有机密消息的高斯干扰信道的新外部边界

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摘要

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 2R1 + R2 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 2R1+R2 bound also improves the bound on the sum rate.
机译：在这项工作中，我们为带有机密消息的两用户干扰信道导出了新的边界。找到总和的上限。当第一个用户的干扰链路大于1时，通过研究特殊形式的三用户干扰获得2R 1 + R 2 的新上限渠道。然后将边界与在强干扰机制下对称干扰信道的已知边界进行比较。尤其是，给出了一些示例来展示信道参数，其中已知可以实现正的保密速率，而新的界限将在保密容量区域的已知外部界限上得到改善。结果表明，在某些情况下，2R 1 + R 2 的界线也会提高求和率的界线。

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