Multi-Pair Two-Way Massive MIMO DF Relaying Over Rician Fading Channels Under Imperfect CSI
Zhangjie Peng, WANG Shuxian, Cunhua Pan, Xianzhe Chen, Julian Cheng, Lajos Hanzo
Abstract
We investigate a multi-pair two-way decode-and-forward relaying aided massive multiple-input multiple-output antenna system under Rician fading channels, in which multiple pairs of users exchange information through a relay station having multiple antennas. Imperfect channel state information is considered in the context of maximum-ratio processing. Closed-form expressions are derived for approximating the sum spectral efficiency (SE) of the system. Moreover, we obtain the power-scaling laws at the users and the relay station to satisfy a certain SE requirement in three typical scenarios. Finally, simulations validate the accuracy of the derived results.
Topics & Concepts
Rician fadingRelayComputer scienceMIMOFadingChannel state informationContext (archaeology)Channel (broadcasting)Spectral efficiencyImperfectMaximal-ratio combiningTopology (electrical circuits)TelecommunicationsPower (physics)MathematicsWirelessPhysicsPaleontologyCombinatoricsQuantum mechanicsLinguisticsPhilosophyBiologyAdvanced MIMO Systems OptimizationCooperative Communication and Network CodingFull-Duplex Wireless Communications