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 bidirectional mimo achievable rates under limited dynamic range"
  Abstract: In this paper, we consider the problem of full-duplex bidirectional communication between a pair of modems, each with multiple transmit and receive antennas. The principal difficulty in implementing such a system is that, due to the close proximity of each modem's transmit antennas to its receive antennas, each modem's outgoing signal can exceed the dynamic range of its input circuitry, making it difficult-if not impossible-to recover the desired incoming signal. To address these challenges, we consider systems that use pilot-aided channel estimates to perform transmit beamforming, receive beamforming, and interference cancellation. Modeling transmitter/receiver dynamic-range limitations explicitly, we derive tight upper and lower bounds on the achievable sum-rate, and propose a transmission scheme based on maximization of the lower bound, which requires us to (numerically) solve a nonconvex optimization problem. In addition, we derive an analytic approximation to the achievable sum-rate, and show, numerically, that it is quite accurate. We then study the behavior of the sum-rate as a function of signal-to-noise ratio, interference-to-noise ratio, transmitter/receiver dynamic range, number of antennas, and training length, using optimized half-duplex signaling as a baseline.

Connected through hyperedge HE-1 (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"
    - "widely linear digital self interference cancellation in direct conversion full duplex transceiver"

Connected through hyperedge HE-2 (induced by source paper "rate splitting for massive mimo multi carrier system using full duplex decode and forward relay with hardware impairments"):
  with members:
    - "rate splitting robustness in multi pair massive mimo relay systems"
    - "hardware impairments aware transceiver design for bidirectional full duplex mimo ofdm systems"
    - "optimal joint power and subcarrier allocation for full duplex multicarrier non orthogonal multiple access systems"
    - "massive mimo enabled full duplex cellular networks"
    - "hardware impairments aware transceiver for full duplex massive mimo relaying"
    - "rate analysis of two receiver miso broadcast channel with finite rate feedback a rate splitting approach"
    - "passive self interference suppression for full duplex infrastructure nodes"
    - "in band full duplex wireless challenges and opportunities"

Connected through hyperedge HE-3 (induced by source paper "max min fairness user scheduling and power allocation in full duplex ofdma systems"):
  with members:
    - "joint design of multi tap analog cancellation and digital beamforming for reduced complexity full duplex mimo systems"
    - "joint user scheduling and power optimization in full duplex cells with successive interference cancellation"
    - "user selection and power allocation in full duplex multicell networks"
    - "user scheduling and optimal power allocation for full duplex cellular networks"
    - "throughput and coverage for a mixed full and half duplex small cell network"
    - "resource allocation in ofdma networks with half duplex and imperfect full duplex users"
    - "optimizing df cognitive radio networks with full duplex enabled energy access points"
    - "joint downlink base station association and power control for max min fairness computation and complexity"

Connected through hyperedge HE-4 (induced by source paper "environment aware minimum cost wireless backhaul network planning with full duplex links"):
  with members:
    - "hardware impairments aware transceiver design for full duplex amplify and forward mimo relaying"
    - "hardware impairments aware transceiver design for bidirectional full duplex mimo ofdm systems"
    - "sum rate analysis and optimization of self backhauling based full duplex radio access system"
    - "optimal joint power and subcarrier allocation for full duplex multicarrier non orthogonal multiple access systems"
    - "a survey of energy efficient techniques for 5g networks and challenges ahead"
    - "hardware impairments aware transceiver for full duplex massive mimo relaying"
    - "full duplex mimo small cell networks performance analysis"
    - "small cell in band wireless backhaul in massive mimo systems a cooperation of next generation techniques"

Connected through hyperedge HE-5 (induced by source paper "full duplex transmission optimization for bi directional mimo links with qos guarantees"):
  with members:
    - "hardware impairments aware transceiver design for full duplex amplify and forward mimo relaying"
    - "joint design of multi tap analog cancellation and digital beamforming for reduced complexity full duplex mimo systems"
    - "advanced coordinated beamforming for the downlink of future lte cellular networks"
    - "signaling design of two way mimo full duplex channel optimality under imperfect transmit front end chain"
    - "joint beamforming optimization and power control for full duplex mimo two way relay channel"
    - "reference receiver based digital self interference cancellation in mimo full duplex transceivers"
    - "on the outage probability of the full duplex interference limited relay channel"
    - "full duplex mobile device pushing the limits"

Connected through hyperedge HE-6 (induced by source paper "sum secrecy rate maximization in a multi carrier mimo wiretap channel with full duplex jamming"):
  with members:
    - "multi objective optimization for robust power efficient and secure full duplex wireless communication systems"
    - "robust beamforming for secure communication in systems with wireless information and power transfer"
    - "principles of physical layer security in multiuser wireless networks a survey"
    - "full duplex relay with jamming protocol for improving physical layer security"
    - "improving physical layer secrecy using full duplex jamming receivers"
    - "in band full duplex wireless challenges and opportunities"
    - "experiment driven characterization of full duplex wireless systems"
    - "power and subcarrier allocation for physical layer security in ofdma based broadband wireless networks"

Connected through hyperedge HE-7 (induced by source paper "hardware impairments aware transceiver design for full duplex amplify and forward mimo relaying"):
  with members:
    - "joint relay user beamforming design in a full duplex two way relay channel"
    - "full duplex massive mimo relaying systems with low resolution adcs"
    - "joint source relay design for full duplex mimo af relay systems"
    - "hardware impairments aware transceiver for full duplex massive mimo relaying"
    - "in band full duplex wireless challenges and opportunities"
    - "experiment driven characterization of full duplex wireless systems"
    - "cellular systems with full duplex compress and forward relaying and cooperative base stations"

Connected through hyperedge HE-8 (induced by source paper "secrecy energy efficiency of mimome wiretap channels with full duplex jamming"):
  with members:
    - "multi tenant c ran with spectrum pooling downlink optimization under privacy constraints"
    - "exploiting full duplex receivers for achieving secret communications in multiuser miso networks"
    - "softnull many antenna full duplex wireless via digital beamforming"
    - "a survey of energy efficient techniques for 5g networks and challenges ahead"
    - "hardware impairments aware transceiver for full duplex massive mimo relaying"
    - "multi objective optimization for robust power efficient and secure full duplex wireless communication systems"
    - "joint design of optimal cooperative jamming and power allocation for linear precoding"
    - "robust beamforming for secure communication in systems with 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)