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: "capacity of the gaussian two hop full duplex relay channel with residual self interference"
  Abstract: In this paper, we investigate the capacity of the Gaussian two-hop full-duplex (FD) relay channel with residual self-interference. This channel is comprised of a source, an FD relay, and a destination, where a direct source-destination link does not exist and the FD relay is impaired by residual self-interference. We adopt the worst-case linear self-interference model with respect to the channel capacity, and model the residual self-interference as a Gaussian random variable whose variance depends on the amplitude of the transmit symbol of the relay. For this channel, we derive the capacity and propose an explicit capacity-achieving coding scheme. Thereby, we show that the optimal input distribution at the source is Gaussian and its variance depends on the amplitude of the transmit symbol of the relay. On the other hand, the optimal input distribution at the relay is discrete or Gaussian, where the latter case occurs only when the relay-destination link is the bottleneck link. The derived capacity converges to the capacity of the two-hop ideal FD relay channel without self-interference and to the capacity of the two-hop half-duplex (HD) relay channel in the limiting cases when the residual self-interference is zero and infinite, respectively. Our numerical results show that significant performance gains are achieved with the proposed capacity-achieving coding scheme compared to the achievable rates of conventional HD relaying and/or conventional FD relaying.

Connected through hyperedge HE-1 (induced by source paper "conditional capacity and transmit signal design for swipt systems with multiple nonlinear energy harvesting receivers"):
  with members:
    - "fundamentals of wireless information and power transfer from rf energy harvester models to signal and system designs"
    - "on the capacity of swipt systems with a nonlinear energy harvesting circuit"
    - "on capacity achieving distributions over complex awgn channels under nonlinear power constraints and their applications to swipt"
    - "wireless information and power transfer over an awgn channel nonlinearity and asymmetric gaussian signaling"
    - "waveform optimization for radio frequency wireless power transfer"
    - "waveform design for wireless power transfer"
    - "wireless information and power transfer nonlinearity waveform design and rate energy tradeoff"
    - "practical non linear energy harvesting model and resource allocation for swipt systems"

Connected through hyperedge HE-2 (induced by source paper "robust transceiver design for full duplex decode and forward relay assisted mimo systems"):
  with members:
    - "state space adaptive nonlinear self interference cancellation for full duplex communication"
    - "all digital self interference cancellation technique for full duplex systems"
    - "multipair full duplex relaying with massive arrays and linear processing"
    - "passive self interference suppression for full duplex infrastructure nodes"
    - "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"
    - "understanding the impact of phase noise on active cancellation in wireless full duplex"

Connected through hyperedge HE-3 (induced by source paper "on the secrecy capacity of a full duplex wirelessly powered communication system"):
  with members:
    - "exploiting interference for secrecy wireless information and power transfer"
    - "capacity of a full duplex wirelessly powered communication system with self interference and processing cost"
    - "power allocation for secure swipt systems with wireless powered cooperative jamming"
    - "physical layer security in heterogeneous networks with jammer selection and full duplex users"
    - "mimo wiretap channel under receiver side power constraints with applications to wireless power transfer and cognitive radio"
    - "wireless powered communication networks an overview"
    - "accumulate and jam towards secure communication via a wireless powered full duplex jammer"
    - "artificial noise aided secrecy information and power transfer in ofdma systems"

Connected through hyperedge HE-4 (induced by source paper "capacity of a full duplex wirelessly powered communication system with self interference and processing cost"):
  with members:
    - "rf based energy harvesting in decode and forward relaying systems ergodic and outage capacities"
    - "capacity region of gaussian multiple access channels with energy harvesting and energy cooperation"
    - "capacity analysis of discrete energy harvesting channels"
    - "capacity of the energy harvesting gaussian mac"
    - "capacity of the two hop relay channel with wireless energy transfer from relay to source and energy transmission cost"
    - "weighted sum transmit power minimization for full duplex system with swipt and self energy recycling"
    - "capacity of the energy harvesting channel with a finite battery"
    - "energy recycling full duplex radios for next generation networks"

Connected through hyperedge HE-5 (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"
    - "low complexity end to end performance optimization in mimo full duplex relay systems"
    - "widely linear digital self interference cancellation in direct conversion full duplex transceiver"
    - "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-6 (induced by source paper "secret key aided scheme for securing untrusted df relaying networks"):
  with members:
    - "achievable rates of buffer aided full duplex gaussian relay channels"
    - "protecting against untrusted relays an information self encrypted approach"
    - "principles of physical layer security in multiuser wireless networks a survey"
    - "improving physical layer secrecy using full duplex jamming receivers"
    - "experiment driven characterization of full duplex wireless systems"
    - "cooperation with an untrusted relay a secrecy perspective"
    - "on the delay limited secrecy capacity of fading channels"

Connected through hyperedge HE-7 (induced by source paper "on the outage analysis and finite snr diversity multiplexing tradeoff of hybrid duplex systems for aeronautical communications"):
  with members:
    - "all digital self interference cancellation technique for full duplex systems"
    - "full duplex radio for uplink downlink wireless access with spatially random nodes"
    - "mobile communication systems in the presence of fading shadowing noise and interference"
    - "analysis of oscillator phase noise effects on self interference cancellation in full duplex ofdm radio transceivers"
    - "full duplex transceiver system calculations analysis of adc and linearity challenges"
    - "in band full duplex wireless challenges and opportunities"
    - "gaussian interference channel capacity to within one bit"

Connected through hyperedge HE-8 (induced by source paper "on the capacity of swipt systems with a nonlinear energy harvesting circuit"):
  with members:
    - "wireless information and power transfer over an awgn channel nonlinearity and asymmetric gaussian signaling"
    - "waveform optimization for radio frequency wireless power transfer"
    - "waveform design for wireless power transfer"
    - "wireless information and power transfer nonlinearity waveform design and rate energy tradeoff"
    - "mimo broadcasting for simultaneous wireless information and power transfer"

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)