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: "distributive subband allocation power and rate control for relay assisted ofdma cellular system with imperfect system state knowledge"
  Abstract: In this paper, we consider distributive subband, power and rate allocation for a two-hop transmission in an orthogonal frequency-division multiple-access (OFDMA) cellular system with fixed relays which operate in decode-and-forward strategy. We take into account of system fairness by considering weighted sum goodput as our optimization objective. Based on the cluster-based architecture, we obtain a fast-converging distributive solution with only local imperfect CSIT by using decomposition of the optimization problem. To further reduce the signaling overhead and computational complexity, we propose a reduced feedback distributive solution, which can achieve asymptotically optimal performance for large number of users with arbitrarily small feedback overhead per user. We also derive asymptotic average system throughput for the relay-assisted OFDMA system so as to obtain useful design insights.

Connected through hyperedge HE-1 (induced by source paper "robust and secure resource allocation for full duplex miso multicarrier noma systems"):
  with members:
    - "optimal resource allocation for power efficient mc noma with imperfect channel state information"
    - "resource allocation for secure full duplex ofdma radio systems"
    - "on optimal power allocation for downlink non orthogonal multiple access systems"
    - "secrecy sum rate maximization in non orthogonal multiple access"
    - "on the spectral efficiency and security enhancements of noma assisted multicast unicast streaming"
    - "optimal joint power and subcarrier allocation for full duplex multicarrier non orthogonal multiple access systems"
    - "sub channel and power allocation for non orthogonal multiple access relay networks with amplify and forward protocol"
    - "power and channel allocation for non orthogonal multiple access in 5g systems tractability and computation"

Connected through hyperedge HE-2 (induced by source paper "optimal joint power and subcarrier allocation for full duplex multicarrier non orthogonal multiple access systems"):
  with members:
    - "achievable sum rates of half and full duplex bidirectional ofdm communication links"
    - "optimal joint power and subcarrier allocation for mc noma systems"
    - "energy efficient transmission design in non orthogonal multiple access"
    - "a minorization maximization method for optimizing sum rate in the downlink of non orthogonal multiple access systems"
    - "power efficient resource allocation for full duplex radio distributed antenna networks"
    - "a general mimo framework for noma downlink and uplink transmission based on signal alignment"
    - "multi objective optimization for robust power efficient and secure full duplex wireless communication systems"
    - "on the spectral efficiency of full duplex small cell wireless systems"

Connected through hyperedge HE-3 (induced by source paper "optimal joint power and subcarrier allocation for mc noma systems"):
  with members:
    - "power efficient resource allocation for mc noma with statistical channel state information"
    - "a minorization maximization method for optimizing sum rate in the downlink of non orthogonal multiple access systems"
    - "power efficient resource allocation for full duplex radio distributed antenna networks"
    - "a general mimo framework for noma downlink and uplink transmission based on signal alignment"

Connected through hyperedge HE-4 (induced by source paper "jointly optimal channel and power assignment for dual hop multi channel multi user relaying"):
  with members:
    - "joint subcarrier pairing and power allocation for ofdm transmission with decode and forward relaying"
    - "jointly optimal channel pairing and power allocation for multichannel multihop relaying"
    - "optimization framework and graph based approach for relay assisted bidirectional ofdma cellular networks"

Connected through hyperedge HE-5 (induced by source paper "optimal distributed resource allocation for decode and forward relay networks"):
  with members:
    - "joint bandwidth and power allocation with admission control in wireless multi user networks with and without relaying"
    - "relay selection and power allocation in cooperative cellular networks"
    - "relay assisted f tdma ad hoc networks node classification power allocation and relaying strategies"

Connected through hyperedge HE-6 (induced by source paper "wsr maximized resource allocation in multiple df relays aided ofdma downlink transmission"):
  with members:
    - "sum rate maximized resource allocation in multiple df relays aided ofdm transmission"
    - "relay selection and power allocation in cooperative cellular networks"

Connected through hyperedge HE-7 (induced by source paper "resource allocation for selection based cooperative ofdm networks"):
  with members:
    - "a simple cooperative diversity method based on network path selection"

Connected through hyperedge HE-8 (induced by source paper "relay selection and power allocation in cooperative cellular networks"):
  with members:
    - "distributed power allocation strategies for parallel relay networks"
    - "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.NI(Networking and Internet Architecture)