human: Given a node-centered hypergraph: <hypergraph>, where nodes represent papers and hyperedges represent sets of papers co-cited by a source paper.

Details of the hypergraph:
Center node: "interference management in 5g reverse tdd hetnets with wireless backhaul a large system analysis"
  Abstract: This work analyzes a heterogeneous network (HetNet), which comprises a macro base station (BS) equipped with a large number of antennas and an overlaid dense tier of small cell access points (SCAs) using a wireless backhaul for data traffic. The static and low mobility user equipment terminals (UEs) are associated with the SCAs while those with medium-to-high mobility are served by the macro BS. A reverse time division duplexing (TDD) protocol is used by the two tiers, which allows the BS to locally estimate both the intra-tier and inter-tier channels. This knowledge is then used at the BS either in the uplink (UL) or in the downlink (DL) to simultaneously serve the macro UEs (MUEs) and to provide the wireless backhaul to SCAs. A concatenated linear precoding technique employing either zero-forcing (ZF) or regularized ZF is used at the BS to simultaneously serve MUEs and SCAs in DL while nulling interference toward those SCAs in UL. We evaluate and characterize the performance of the system through the power consumption of UL and DL transmissions under the assumption that target rates must be satisfied and imperfect channel state information is available for MUEs. The analysis is conducted in the asymptotic regime where the number of BS antennas and the network size (MUEs and SCAs) grow large with fixed ratios. Results from large system analysis are used to provide concise formulae for the asymptotic UL and DL transmit powers and precoding vectors under the above assumptions. Numerical results are used to validate the analysis in different settings and to make comparisons with alternative network architectures.

Connected through hyperedge HE-1 (induced by source paper "the capacity and optimal signaling for gaussian mimo channels under interference constraints full version"):
  with members:
    - "the capacity of gaussian mimo channels under total and per antenna power constraints"
    - "resource management in non orthogonal multiple access networks for 5g and beyond"
    - "multiuser miso transmitter optimization for intercell interference mitigation"
    - "cooperative algorithms for mimo interference channels"
    - "dynamic resource allocation in cognitive radio networks"
    - "miso capacity with per antenna power constraint"
    - "capacity bounds for the gaussian interference channel"
    - "on gaussian mimo bc mac duality with multiple transmit covariance constraints"

Connected through hyperedge HE-2 (induced by source paper "performance of network assisted full duplex for cell free massive mimo"):
  with members:
    - "on the feasibility of full duplex large scale mimo cellular systems"
    - "cell free massive mimo versus small cells"
    - "full duplex emulation via spatial separation of half duplex nodes in a planar cellular network"
    - "why to decouple the uplink and downlink in cellular networks and how to do it"
    - "cell free massive mimo uniformly great service for everyone"
    - "compflex comp for in band wireless full duplex"
    - "in band alpha duplex scheme for cellular networks a stochastic geometry approach"
    - "multipair full duplex relaying with massive arrays and linear processing"

Connected through hyperedge HE-3 (induced by source paper "large system analysis of power normalization techniques in massive mimo"):
  with members:
    - "massive mimo has unlimited capacity"
    - "reducing the computational complexity of multicasting in large scale antenna systems"
    - "energy efficient downlink transmission for multicell massive das with pilot contamination"
    - "joint power allocation and user association optimization for massive mimo systems"
    - "convergence analysis and assurance for gaussian message passing iterative detector in massive mu mimo systems"
    - "pilot contamination is not a fundamental asymptotic limitation in massive mimo"
    - "massive mimo ten myths and one critical question"
    - "performance analysis of massive mimo for cell boundary users"

Connected through hyperedge HE-4 (induced by source paper "on reusing pilots among interfering cells in massive mimo"):
  with members:
    - "cell free massive mimo versus small cells"
    - "no downlink pilots are needed in tdd massive mimo"
    - "a multi cell mmse precoder for massive mimo systems and new large system analysis"
    - "5g ultra dense cellular networks"
    - "when pilots should not be reused across interfering cells in massive mimo"
    - "massive mimo performance evaluation based on measured propagation data"
    - "smart pilot assignment for massive mimo"
    - "massive mimo systems with non ideal hardware energy efficiency estimation and capacity limits"

Connected through hyperedge HE-5 (induced by source paper "energy efficient downlink transmission for multicell massive das with pilot contamination"):
  with members:
    - "joint power allocation and user association optimization for massive mimo systems"
    - "asymptotic orthogonality analysis of time domain sparse massive mimo channels"
    - "large scale mimo relaying techniques for physical layer security af or df"
    - "large system analysis of cognitive radio network via partially projected regularized zero forcing precoding"
    - "joint power and antenna selection optimization in large cloud radio access networks"
    - "impact of transceiver power consumption on the energy efficiency of zero forcing detector in massive mimo systems"
    - "massive mimo for next generation wireless systems"
    - "what will 5g be"

Connected through hyperedge HE-6 (induced by source paper "joint load balancing and interference mitigation in 5g heterogeneous networks"):
  with members:
    - "optimal hierarchical radio resource management for hetnets with flexible backhaul"
    - "ultra reliable and low latency communication in mmwave enabled massive mimo networks"
    - "user association in 5g networks a survey and an outlook"
    - "joint in band backhauling and interference mitigation in 5g heterogeneous networks"
    - "large system analysis of cognitive radio network via partially projected regularized zero forcing precoding"
    - "cooperative interference mitigation algorithm in heterogeneous networks"
    - "an overview of load balancing in hetnets old myths and open problems"
    - "optimal user cell association for massive mimo wireless networks"

Connected through hyperedge HE-7 (induced by source paper "energy efficient power control for the two tier networks with small cells and massive mimo"):
  with members:
    - "what will 5g be"
    - "massive mimo meets hetnet interference coordination through spatial blanking"

Connected through hyperedge HE-8 (induced by source paper "joint transmission with dummy symbols for dynamic tdd in ultra dense deployments"):
  with members:
    - "technical rate of substitution of spectrum in future mobile broadband provisioning"
    - "asymptotic behavior of ultra dense cellular networks and its economic impact"

Question: Please tell me which class the center node belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.IT(Information Theory)