Ieee Transactions on Wireless Communications, Accepted for Publication 1 Coherent Product Superposition for Downlink Multiuser Mimo
Ieee Transactions on Wireless Communications, Accepted for Publication 1 Coherent Product Superposition for Downlink Multiuser Mimo
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Ieee 无线通信交易，已接受出版 1 下行链路多用户 Mimo 的相干产品叠加
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通讯作者：
Aria Nosratinia
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作者：
Yang Li;Aria Nosratinia
- 在一个用户具有完全CSIR而另一个用户没有CSIR的两个用户广播信道中，最近的结果表明TDMA严格地是次优的，并且需要非相干信令的乘积叠加在许多天线配置下实现DoF增益。本文介绍了带导频的相干信号域中的乘积叠加，论证了乘积叠加在低信噪比和高信噪比下的优势，并在更广泛的接收机天线配置中建立了DoF增益。两类解码器，有和没有干扰消除，进行了研究。通过分析建立了可调速率，并通过模拟进行了说明。
—In a two-user broadcast channel where one user has full CSIR and the other has none, a recent result showed that TDMA is strictly suboptimal and a product superposition requiring non-coherent signaling achieves DoF gains under many antenna configurations. This work introduces product superposi-tion in the domain of coherent signaling with pilots, demonstrates the advantages of product superposition in low-SNR as well as high-SNR, and established DoF gains in a wider set of receiver antenna configurations. Two classes of decoders, with and without interference cancellation, are studied. Achievable rates are established by analysis and illustrated by simulations.