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: "optimal low complexity self interference cancellation for full duplex mimo small cells"
  Abstract: Self-interference (SI) significantly limits the performance of full-duplex (FD) radio devices if not properly cancelled. State-of-the-art SI cancellation (SIC) techniques at the receive chain implicitly set an upper bound on the transmit power of the device. This paper starts from this observation and proposes a transmit beamforming design for FD multiple-antenna radios that: i) leverages the inherent SIC capabilities at the receiver and the channel state information; and ii) exploits the potential of multiple antennas in terms of spatial SIC. The proposed solution not only maximizes the throughput while complying with the SIC requirements of the FD device, but also enjoys a very low complexity that allows it to outperform state-of-the-art counterparts in terms of processing time and power requirements. Numerical results show that our transmit beamforming design achieves significant gains with respect to applying zero-forcing to the SI channel when the number of transmit antennas is small to moderate, which makes it particularly appealing for FD small-cell base stations.

Connected through hyperedge HE-1 (induced by source paper "low complexity full duplex mimo novel analog cancellation architectures and transceiver design"):
  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"
    - "performance evaluation of user scheduling for full duplex small cells in ultra dense networks"
    - "softnull many antenna full duplex wireless via digital beamforming"
    - "hybrid beamforming for massive mimo a survey"
    - "design and characterization of a full duplex multiantenna system for wifi networks"
    - "in band full duplex wireless challenges and opportunities"
    - "experiment driven characterization of full duplex wireless systems"

Connected through hyperedge HE-2 (induced by source paper "cache aided full duplex small cells"):
  with members:
    - "effect of user mobility on the performance of device to device networks with distributed caching"
    - "wireless caching technical misconceptions and business barriers"
    - "user scheduling and optimal power allocation for full duplex cellular networks"
    - "optimization and analysis of probabilistic caching in n tier heterogeneous networks"
    - "mean field games for distributed caching in ultra dense small cell networks"
    - "full duplex mimo small cell networks with interference cancellation"
    - "interference cancellation at receivers in cache enabled wireless networks"
    - "energy recycling full duplex radios for next generation networks"

Connected through hyperedge HE-3 (induced by source paper "joint design of multi tap analog cancellation and digital beamforming for reduced complexity full duplex mimo systems"):
  with members:
    - "user scheduling and optimal power allocation for full duplex cellular networks"
    - "softnull many antenna full duplex wireless via digital beamforming"
    - "design and characterization of a full duplex multiantenna system for wifi networks"
    - "in band full duplex wireless challenges and opportunities"
    - "experiment driven characterization of full duplex wireless systems"

Connected through hyperedge HE-4 (induced by source paper "full duplex mimo small cell networks with interference cancellation"):
  with members:
    - "self interference in full duplex multi user mimo channels"
    - "joint backhaul access analysis of full duplex self backhauling heterogeneous networks"
    - "user scheduling and optimal power allocation for full duplex cellular networks"
    - "analysis of massive mimo enabled downlink wireless backhauling for full duplex small cells"
    - "throughput and coverage for a mixed full and half duplex small cell network"
    - "performance analysis of partial interference cancellation in multi antenna udns"
    - "massive mimo enabled full duplex cellular networks"
    - "full duplex mimo small cell networks performance analysis"

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)