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: "full duplex millimeter wave communication"
  Abstract: The potential of doubling the spectrum efficiency of full-duplex (FD) transmission motivates us to investigate FD millimeter-wave (FD-mmWave) communication. To realize FD transmission in the mmWave band, we first introduce possible antenna configurations for FD-mmWave transmission. It is shown that, different from the cases in micro-wave band FD communications, the configuration with separate Tx/Rx antenna arrays appears more flexible in self-interference (SI) suppression while it may increase some cost and area versus that with the same array. We then model the mmWave SI channel with separate Tx/Rx arrays, where a near-field propagation model is adopted for the line-of-sight (LOS) path, and it is found that the established LOS-SI channel with separate Tx/Rx arrays also shows spatial sparsity. Based on the SI channel, we further explore approaches to mitigate SI by signal processing, and we focus on a new cancellation approach in FD-mmWave communication, i.e., beamforming cancellation. Centered on the constant-amplitude (CA) constraint of the beamforming vectors, we propose several candidate solutions. Lastly, we consider an FD-mmWave multi-user scenario, and show that even if there are no FD users in an FD-mmWave cellular system, the FD benefit can still be exploited in the FD base station. Candidate solutions are also discussed to mitigate both SI and multi-user interference (MUI) simultaneously.

Connected through hyperedge HE-1 (induced by source paper "full duplex hybrid a d beamforming with reduced complexity multi tap analog cancellation"):
  with members:
    - "joint design of multi tap analog cancellation and digital beamforming for reduced complexity full duplex mimo systems"
    - "user scheduling and optimal power allocation for full duplex cellular networks"
    - "softnull many antenna full duplex wireless via digital beamforming"
    - "hybrid beamforming for massive mimo a survey"
    - "widely linear digital self interference cancellation in direct conversion full duplex transceiver"
    - "in band full duplex wireless challenges and opportunities"

Connected through hyperedge HE-2 (induced by source paper "sub channel allocation for device to device underlaying full duplex mmwave small cells using coalition formation games"):
  with members:
    - "on low resolution adcs in practical 5g millimeter wave massive mimo systems"
    - "full duplex amplify and forward relaying power and location optimization"
    - "joint power allocation and beamforming for non orthogonal multiple access noma in 5g millimeter wave communications"
    - "game theoretic dynamic channel allocation for frequency selective interference channels"
    - "leveraging social communities for optimizing cellular device to device communications"
    - "on the spectral efficiency of massive mimo systems with low resolution adcs"
    - "exploiting device to device communications in joint scheduling of access and backhaul for mmwave small cells"
    - "efficiency resource allocation for device to device underlay communication systems a reverse iterative combinatorial auction based approach"

Connected through hyperedge HE-3 (induced by source paper "resource allocation for device to device communications in multi cell multi band heterogeneous cellular networks"):
  with members:
    - "resource allocation for device to device communications underlaying heterogeneous cellular networks using coalitional games"
    - "coverage analysis for millimeter wave networks the impact of directional antenna arrays"
    - "hierarchical codebook design for beamforming training in millimeter wave communication"
    - "exploiting device to device communications in joint scheduling of access and backhaul for mmwave small cells"
    - "millimeter wave channel modeling and cellular capacity evaluation"
    - "efficiency resource allocation for device to device underlay communication systems a reverse iterative combinatorial auction based approach"

Connected through hyperedge HE-4 (induced by source paper "on the benefits of network level cooperation in millimeter wave communications"):
  with members:
    - "network level cooperation in random access iot networks with aggregators"
    - "maximum throughput scheduling for multi connectivity in millimeter wave networks"
    - "throughput analysis for relay assisted millimeter wave wireless networks"
    - "beam based stochastic model of the coverage probability in 5g millimeter wave systems"
    - "overview of millimeter wave communications for fifth generation 5g wireless networks with a focus on propagation models"
    - "distributed association and relaying with fairness in millimeter wave networks"
    - "on the relay fallback tradeoff in millimeter wave wireless system"
    - "initial access in 5g mmwave cellular networks"

Connected through hyperedge HE-5 (induced by source paper "qos aware full duplex concurrent scheduling for millimeter wave wireless backhaul networks"):
  with members:
    - "full duplex amplify and forward relaying power and location optimization"
    - "hierarchical codebook design for beamforming training in millimeter wave communication"
    - "exploiting device to device communications in joint scheduling of access and backhaul for mmwave small cells"
    - "a survey of millimeter wave mmwave communications for 5g opportunities and challenges"
    - "wireless backhaul node placement for small cell networks"
    - "in band full duplex wireless challenges and opportunities"
    - "coding the beams improving beamforming training in mmwave communication system"

Connected through hyperedge HE-6 (induced by source paper "resource allocation for device to device communications underlaying heterogeneous cellular networks using coalitional games"):
  with members:
    - "hybrid spectrum sharing in mmwave cellular networks"
    - "exploiting device to device communications in joint scheduling of access and backhaul for mmwave small cells"
    - "efficiency resource allocation for device to device underlay communication systems a reverse iterative combinatorial auction based approach"
    - "dynamic popular content distribution in vehicular networks using coalition formation games"

Connected through hyperedge HE-7 (induced by source paper "joint power control and beamforming for uplink non orthogonal multiple access in 5g millimeter wave communications"):
  with members:
    - "spectrum and energy efficient beamspace mimo noma for millimeter wave communications using lens antenna array"
    - "joint power allocation and beamforming for non orthogonal multiple access noma in 5g millimeter wave communications"
    - "hierarchical codebook design for beamforming training in millimeter wave communication"
    - "codebook design for millimeter wave channel estimation with hybrid precoding structure"
    - "enabling uav cellular with millimeter wave communication potentials and approaches"
    - "channel estimation and hybrid precoding for millimeter wave cellular systems"
    - "what will 5g be"
    - "on the performance of non orthogonal multiple access in 5g systems with randomly deployed users"

Connected through hyperedge HE-8 (induced by source paper "joint power allocation and beamforming for non orthogonal multiple access noma in 5g millimeter wave communications"):
  with members:
    - "hierarchical codebook design for beamforming training in millimeter wave communication"
    - "a minorization maximization method for optimizing sum rate in the downlink of non orthogonal multiple access systems"
    - "channel estimation and hybrid precoding for millimeter wave cellular systems"
    - "what will 5g be"
    - "on the performance of non orthogonal multiple access in 5g systems with randomly deployed users"

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)