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: "on the capacity of decode and forward relaying over rician fading channels"
  Abstract: In this letter, we derive the probability density function (PDF) and cumulative distribution function (CDF) of the minimum of two non-central Chi-square random variables with two degrees of freedom in terms of power series. With the help of the derived PDF and CDF, we obtain the exact ergodic capacity of the following adaptive protocols in a decode-and-forward (DF) cooperative system over dissimilar Rician fading channels: (i) constant power with optimal rate adaptation; (ii) optimal simultaneous power and rate adaptation; (iii) channel inversion with fixed rate. By using the analytical expressions of the capacity, it is observed that the optimal power and rate adaptation provides better capacity than the optimal rate adaptation with constant power from low to moderate signal-to-noise ratio values over dissimilar Rician fading channels. Despite low complexity, the channel inversion based adaptive transmission is shown to suffer from significant loss in capacity as compared to the other adaptive transmission based techniques over DF Rician channels.

Connected through hyperedge HE-1 (induced by source paper "a comprehensive performance evaluation of a df based multi hop system over alpha kappa mu and alpha kappa mu extreme fading channels"):
  with members:
    - "rician k factor based analysis of xlos service probability in 5g outdoor ultra dense networks"
    - "on the monotonicity log concavity and tight bounds of the generalized marcum and nuttall q functions"

Connected through hyperedge HE-2 (induced by source paper "on the performance of noma based cooperative relaying systems over rician fading channels"):
  with members:
    - "optimal joint power and subcarrier allocation for full duplex multicarrier non orthogonal multiple access systems"
    - "capacity achieving iterative lmmse detection for mimo noma systems"
    - "cooperative non orthogonal multiple access with simultaneous wireless information and power transfer"
    - "five disruptive technology directions for 5g"

Connected through hyperedge HE-3 (induced by source paper "optimal scheduling of reliability constrained relaying system under outdated csi in the finite blocklength regime"):
  with members:
    - "on the performance of ultra reliable decode and forward relaying under the finite blocklength"
    - "energy efficient packet scheduling with finite blocklength codes convexity analysis and efficient algorithms"
    - "blocklength limited performance of relaying under quasi static rayleigh channels"
    - "finite block length analysis of the incremental redundancy harq"
    - "impact of propagation environment on energy efficient relay placement model and performance analysis"
    - "throughput of cognitive radio systems with finite blocklength codes"
    - "the diversity multiplexing tradeoff of the dynamic decode and forward protocol on a mimo half duplex relay channel"
    - "coding versus arq in fading channels how reliable should the phy be"

Connected through hyperedge HE-4 (induced by source paper "the impact of outdated csi on the finite blocklength performance of relaying"):
  with members:
    - "blocklength limited performance of relaying under quasi static rayleigh channels"
    - "finite block length analysis of the incremental redundancy harq"
    - "impact of propagation environment on energy efficient relay placement model and performance analysis"
    - "the diversity multiplexing tradeoff of the dynamic decode and forward protocol on a mimo half duplex relay channel"
    - "coding versus arq in fading channels how reliable should the phy be"

Connected through hyperedge HE-5 (induced by source paper "blocklength limited performance of relaying under quasi static rayleigh channels"):
  with members:
    - "finite block length analysis of the incremental redundancy harq"
    - "impact of propagation environment on energy efficient relay placement model and performance analysis"
    - "quasi static multiple antenna fading channels at finite blocklength"
    - "the diversity multiplexing tradeoff of the dynamic decode and forward protocol on a mimo half duplex relay channel"
    - "coding versus arq in fading channels how reliable should the phy be"

Connected through hyperedge HE-6 (induced by source paper "on the capacity of csi based transmission link selection in decode and forward cooperative system"):
  with members:
    - "a simple cooperative diversity method based on network path selection"

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)