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The Approximate Capacity of the Many-to-One and One-to-Many Gaussian Interference Channels

机译:多对一和一对多高斯干扰信道的近似容量

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摘要

Recently, Etkin, Tse, and Wang found the capacity region of the two-user Gaussian interference channel to within 1 bit/s/Hz. A natural goal is to apply this approach to the Gaussian interference channel with an arbitrary number of users. We make progress towards this goal by finding the capacity region of the many-to-one and one-to-many Gaussian interference channels to within a constant number of bits. The result makes use of a deterministic model to provide insight into the Gaussian channel. The deterministic model makes explicit the dimension of signal level. A central theme emerges: the use of lattice codes for alignment of interfering signals on the signal level.
机译:最近,Etkin,Tse和Wang发现两用户高斯干扰信道的容量区域在1 bit / s / Hz之内。一个自然的目标是将这种方法应用于具有任意数量用户的高斯干扰信道。我们通过在恒定位数内找到多对一和一对多高斯干扰信道的容量区域,来朝这个目标迈进。结果利用确定性模型提供对高斯通道的洞察力。确定性模型明确了信号电平的维度。一个中心主题出现了:使用晶格码在信号水平上对准干扰信号。

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