Spectrum and Energy Efficiencies for Multiuser Pairs Massive MIMO Systems With Full-Duplex Amplify-and-Forward Relay
Spectrum and Energy Efficiencies for Multiuser Pairs Massive MIMO Systems With Full-Duplex Amplify-and-Forward Relay
复制标题
多用户对大规模 MIMO 系统与全双工放大转发中继的频谱和能源效率
DOI：
10.1109/access.2015.2486039
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发表时间：
2015-10
期刊：
影响因子：
3.9
通讯作者：
HongboZhu
中科院分区：
文献类型：
--
作者：
Xiangdong Jia;Pengfei Deng;Xiang yang Long;HongboZhu
为了实现放大的环路干扰的影响的见解，我们认为一个双跳全双工（FD）大规模多输入多输出（MIMO）放大转发（AF）中继系统中可实现的遍历速率为每个用户对，以及频谱和能源效率。假设基站（或中继站）配备有MRx接收天线和MTx发射天线，而所有源和目的地具有单个天线。对于这种FD大规模MIMO AF中继系统，首先推导出基站接收和发射天线数量有限时可达各态历经速率下界的闭式表达式。然后，通过考虑三种不同的功率缩放方案来执行渐进性能分析：1）<sub>PS</sub>=<sub>ES</sub>/M<sub>Rx</sub>和<sub>PR</sub>=<sub>ER</sub>; 2）<sub>PS</sub>=<sub>ES</sub>和<sub>PR</sub>=<sub>ER</sub>/M<sub>Tx</sub>;以及3）<sub>PS</sub>=<sub>ES</sub>/M<sub>Rx</sub>和<sub>PR</sub>=<sub>ER</sub>/M<sub>Tx</sub>，其中<sub>ES</sub>和<sub>ER是</sub>固定的，并且<sub>PS</sub>和PR分别表示每个源和中继的发射功率。<sub></sub>研究结果表明，只有在采用功率缩放2）的情况下，FD大规模MIMO AF中继系统才有能力抑制环路干扰，从而在中继天线数足够大的情况下，系统性能不受环路干扰的影响。相反，对于功率缩放情况1）和3），即使M<sub>Rx</sub>或M<sub>Tx</sub>（或两者）变为无穷大，系统也没有消除环路干扰的能力。这与FD大规模MIMO解码转发中继系统中的结果不同，在FD大规模MIMO解码转发中继系统中，对于三种功率缩放情况，可以完全消除环路干扰。
To achieve insights about the impact of amplified loop interference, we consider a dual-hop fullduplex (FD) massive multiple-input multiple-output (MIMO) amplify-and-forward (AF) relaying system in terms of achievable ergodic rates for each user pair as well as spectrum and energy efficiencies. It is assumed that the base station (or relay) is equipped with MRx receive antennas and MTxtransmit antennas, while all sources and destinations have a single antenna. For such FD massive MIMO AF relaying systems, the closedform expressions of the lower bounds of achievable ergodic rates are derived first with a finite number of receive and transmit antennas at base station. Then, the asymptotic performance analysis is performed by considering three different power-scaling schemes: 1) P<sub>S</sub> = E<sub>S</sub>/M<sub>Rx</sub> and P<sub>R</sub> = E<sub>R</sub>; 2) P<sub>S</sub> = E<sub>S</sub> and P<sub>R</sub> = E<sub>R</sub>/M<sub>Tx</sub>; and 3) P<sub>S</sub> = E<sub>S</sub>/M<sub>Rx</sub> and P<sub>R</sub> = E<sub>R</sub>/M<sub>Tx</sub>, where E<sub>S</sub> and E<sub>R</sub> are fixed, and P<sub>S</sub> and P<sub>R</sub> denote the transmit powers of each source and relay, respectively. Our results show that only when the power-scaling 2) is utilized, do the FD massive MIMO AF relay systems have the ability to restrict the loop interference, so that the system performance is free of loop interference when the number of antennas at the relay is large enough. On the contrary, with the power-scaling cases 1) and 3), the systems have no ability to cancel the loop interference even if M<sub>Rx</sub> or M<sub>Tx</sub> (or both) goes to infinity. The insight is different from the results in the FD massive MIMO decode-and-forward relaying systems where the loop interference can be entirely eliminated for the three power-scaling cases.
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DOI：
10.1109/icc.2008.866
发表时间：
2008-05
期刊：
2008 IEEE International Conference on Communications
影响因子：
--
作者：
R. Mallik
通讯作者：
R. Mallik
影响因子：
11.2
作者：
Wang, Cheng-Xiang;Haider, Fourat;Hepsaydir, Erol
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影响因子：
8.3
作者：
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通讯作者：
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影响因子：
16.4
作者：
H. Ngo;H. Suraweera;M. Matthaiou;Erik G. Larsson
通讯作者：
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影响因子：
6.8
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