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Single-carrier frequency domain adaptive antenna array for uplink multi-user MIMO transmission in a cellular system

机译:蜂窝系统中用于上行链路多用户MIMO传输的单载波频域自适应天线阵列

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摘要

In this paper, single-carrier frequency domain adaptive antenna array (SC-FDAM) for the uplink multi-user multiple-input multiple-output (MIMO) transmission in a cellular system is studied. By employing AAA weight control in frequency domain, the base station (BS) can suppress the multi-user interference (MUI) and therefore realize multi-user SC transmission. In addition, channel frequency selectivity can be exploited to obtain the frequency diversity (or the multi-path diversity). The frequency domain signal-to-interference-plus-noise-ratio (SINR) after weight control is investigated and the computational complexity of the proposed receiver is analyzed. In numerical simulations, cellular structure using the frequency reuse is assumed, and the effect of co-channel interference (CCI) is considered. The performance of the SC uplink multi-user MIMO transmission using SC-FDAAA is testified and compared with other multi-user detection schemes. The link capacity (maximum number of users/cell) and cellular link capacity (link capacity/frequency reuse factor) are also be evaluated.
机译:本文研究了蜂窝系统中用于上行链路多用户多输入多输出(MIMO)传输的单载波频域自适应天线阵列(SC-FDAM)。通过在频域中采用AAA权重控制,基站(BS)可以抑制多用户干扰(MUI),从而实现多用户SC传输。另外,可以利用信道频率选择性来获得频率分集(或多径分集)。研究了权重控制后的频域信号干扰加噪声比(SINR),并分析了所提出接收器的计算复杂度。在数值模拟中,假定使用频率复用的蜂窝结构,并考虑了同信道干扰(CCI)的影响。验证了使用SC-FDAAA的SC上行链路多用户MIMO传输的性能,并将其与其他多用户检测方案进行了比较。还评估了链路容量(每个小区的最大用户数)和蜂窝链路容量(链路容量/频率重用因子)。

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