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: "widely linear digital self interference cancellation in direct conversion full duplex transceiver"
  Abstract: This paper addresses the modeling and cancellation of self-interference in full-duplex direct-conversion radio transceivers, operating under practical imperfect radio frequency (RF) components. First, detailed self-interference signal modeling is carried out, taking into account the most important RF imperfections, namely, transmitter power amplifier nonlinear distortion as well as transmitter and receiver IQ mixer amplitude and phase imbalances. The analysis shows that after realistic antenna isolation and RF cancellation, the dominant self-interference waveform at the receiver digital baseband can be modeled through a widely linear transformation of the original transmit data, opposed to classical purely linear models. Such widely linear self-interference waveform is physically stemming from the transmitter and receiver IQ imaging and cannot be efficiently suppressed by classical linear digital cancellation. Motivated by this, novel widely linear digital self-interference cancellation processing is then proposed and formulated, combined with efficient parameter estimation methods. Extensive simulation results demonstrate that the proposed widely linear cancellation processing clearly outperforms the existing linear solutions, hence enabling the use of practical low-cost RF front ends utilizing IQ mixing in full-duplex transceivers.

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"
    - "full duplex millimeter wave communication"
    - "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"
    - "in band full duplex wireless challenges and opportunities"

Connected through hyperedge HE-2 (induced by source paper "state space adaptive nonlinear self interference cancellation for full duplex communication"):
  with members:
    - "simultaneous transmit and receive operation in next generation ieee 802 11 wlans a mac protocol design approach"
    - "multi tap digital canceller for full duplex applications"
    - "accumulate and jam towards secure communication via a wireless powered full duplex jammer"
    - "full duplex relaying in mimo ofdm frequency selective channels with optimal adaptive filtering"
    - "wideband self adaptive rf cancellation circuit for full duplex radio operating principle and measurements"
    - "all digital self interference cancellation technique for full duplex systems"
    - "passive self interference suppression for full duplex infrastructure nodes"
    - "design and characterization of a full duplex multiantenna system for wifi networks"

Connected through hyperedge HE-3 (induced by source paper "achievable rates of buffer aided full duplex gaussian relay channels"):
  with members:
    - "throughput analysis and optimization of wireless powered multiple antenna full duplex relay systems"
    - "capacity of the gaussian two hop full duplex relay channel with residual self interference"
    - "low complexity end to end performance optimization in mimo full duplex relay systems"
    - "design and characterization of a full duplex multiantenna system for wifi networks"
    - "wireless information and power transfer with full duplex relaying"
    - "full duplex transceiver system calculations analysis of adc and linearity challenges"
    - "low complexity hybrid precoding in massive multiuser mimo systems"
    - "experiment driven characterization of full duplex wireless systems"

Connected through hyperedge HE-4 (induced by source paper "power allocation for full duplex relay selection in underlay cognitive radio networks coherent versus non coherent scenarios"):
  with members:
    - "power control and relay selection in full duplex cognitive relay networks coherent versus non coherent scenarios"
    - "distributed mac protocol design for full duplex cognitive radio networks"
    - "passive self interference suppression for full duplex infrastructure nodes"
    - "in band full duplex wireless challenges and opportunities"
    - "experiment driven characterization of full duplex wireless systems"
    - "distributed mac protocol for cognitive radio networks design analysis and optimization"
    - "full duplex bidirectional mimo achievable rates under limited dynamic range"

Connected through hyperedge HE-5 (induced by source paper "an augmented nonlinear complex lms for digital self interference cancellation in full duplex direct conversion transceivers"):
  with members:
    - "passive self interference suppression for full duplex infrastructure nodes"
    - "analysis of oscillator phase noise effects on self interference cancellation in full duplex ofdm radio transceivers"
    - "full duplex mobile device pushing the limits"
    - "full duplex transceiver system calculations analysis of adc and linearity challenges"
    - "simultaneous transmission and reception algorithm design and system level performance"
    - "in band full duplex wireless challenges and opportunities"
    - "experiment driven characterization of full duplex wireless systems"

Connected through hyperedge HE-6 (induced by source paper "sum rate analysis and optimization of self backhauling based full duplex radio access system"):
  with members:
    - "wideband self adaptive rf cancellation circuit for full duplex radio operating principle and measurements"
    - "multipair full duplex relaying with massive arrays and linear processing"
    - "full duplex transceiver system calculations analysis of adc and linearity challenges"
    - "self interference cancellation with nonlinear distortion suppression for full duplex systems"
    - "in band full duplex wireless challenges and opportunities"
    - "an analog baseband approach for designing full duplex radios"
    - "experiment driven characterization of full duplex wireless systems"
    - "full duplex bidirectional mimo achievable rates under limited dynamic range"

Connected through hyperedge HE-7 (induced by source paper "optimal low complexity self interference cancellation for full duplex mimo small cells"):
  with members:
    - "all digital self interference cancellation technique for full duplex systems"
    - "energy recycling full duplex radios for next generation networks"
    - "full duplex mimo small cell networks performance analysis"
    - "in band full duplex wireless challenges and opportunities"
    - "experiment driven characterization of full duplex wireless systems"

Connected through hyperedge HE-8 (induced by source paper "energy recycling full duplex radios for next generation networks"):
  with members:
    - "all digital self interference cancellation technique for full duplex systems"
    - "multipair full duplex relaying with massive arrays and linear processing"
    - "reference receiver based digital self interference cancellation in mimo full duplex transceivers"
    - "low complexity end to end performance optimization in mimo full duplex relay systems"
    - "full duplex wireless powered relay with self energy recycling"
    - "in band full duplex wireless challenges and opportunities"
    - "wireless information and power transfer a dynamic power splitting approach"
    - "a distributed approach to interference alignment in ofdm based two tiered networks"

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)