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首页> 外文期刊>Information Theory, IEEE Transactions on >On the Capacity and Degrees of Freedom Regions of Two-User MIMO Interference Channels With Limited Receiver Cooperation
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On the Capacity and Degrees of Freedom Regions of Two-User MIMO Interference Channels With Limited Receiver Cooperation

机译：接收机协作受限的两用户MIMO干扰信道的容量和自由度

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摘要

This paper gives the approximate capacity region of a two-user multiple-input multiple-output (MIMO) interference channel with limited receiver cooperation, where the gap between the inner and outer bounds is in terms of the total number of receive antennas at the two receivers and is independent of the actual channel values. The approximate capacity region is then used to find the degrees of freedom region. For the special case of symmetric interference channels, we also find the amount of receiver cooperation in terms of the backhaul capacity beyond, which the degrees of freedom do not improve. Further, the generalized degrees of freedom is found for MIMO interference channels with equal number of antennas at all nodes. It is shown that the generalized degrees of freedom improves gradually from a W curve to a V curve with increase in cooperation in terms of the backhaul capacity.
机译：本文给出了具有有限接收机协作能力的两用户多输入多输出（MIMO）干扰信道的近似容量区域，其中，内边界和外边界之间的间隙是根据两个接收天线的总数接收器，并且与实际通道值无关。然后，使用近似容量区域来找到自由度区域。对于对称干扰信道的特殊情况，我们还发现，在超出的回程容量方面，接收机的协作量很大，自由度并没有提高。此外，找到了在所有节点上具有相等数量天线的MIMO干扰信道的广义自由度。结果表明，随着回程容量的增加，广义的自由度从W曲线逐渐提高到V曲线。

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