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: "user selection and power allocation in full duplex multicell networks"
  Abstract: Full-duplex (FD) communications has the potential to double the capacity of a half-duplex (HD) system at the link level. However, in a cellular network, FD operation is not a straightforward extension of HD operations. The increased interference due to a large number of simultaneous transmissions in FD operation and real-time traffic conditions limits the capacity for improvement. Realizing the potential of FD requires careful coordination of resource allocation among the cells, as well as within the cell. In this paper, we propose a distributed resource allocation, i.e., joint user selection and power allocation for an FD multicell system, assuming FD base stations (BSs) and HD user equipment (UE). Due to the complexity of finding the globally optimum solution, a suboptimal solution for UE selection and a novel geometric-programming-based solution for power allocation are proposed. The proposed distributed approach converges quickly and performs almost as well as a centralized solution but with much lower signaling overhead. It provides a hybrid scheduling policy that allows FD operations whenever it is advantageous, but otherwise, it defaults to HD operation. We focus on small-cell systems because they are more suitable for FD operation, given practical self-interference cancelation limits. With practical self-interference cancelation, it is shown that the proposed hybrid FD system achieves nearly twice the throughput improvement for an indoor multicell scenario and about 65% improvement for an outdoor multicell scenario, compared with the HD system.

Connected through hyperedge HE-1 (induced by source paper "optimal centralized dynamic time division duplex"):
  with members:
    - "d2d enhanced heterogeneous cellular networks with dynamic tdd"
    - "interference spins scheduling of multiple interfering two way wireless links"
    - "on the spectral efficiency of full duplex small cell wireless systems"

Connected through hyperedge HE-2 (induced by source paper "dynamic time frequency division duplex"):
  with members:
    - "why to decouple the uplink and downlink in cellular networks and how to do it"
    - "interference spins scheduling of multiple interfering two way wireless links"
    - "multi objective optimization for robust power efficient and secure full duplex wireless communication systems"
    - "analysis of the decoupled access for downlink and uplink in wireless heterogeneous networks"
    - "on the spectral efficiency of full duplex small cell wireless systems"

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 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"
    - "multi objective optimization for robust power efficient and secure full duplex wireless communication systems"

Connected through hyperedge HE-4 (induced by source paper "full duplex heterogeneous networks with decoupled user association rate analysis and traffic scheduling"):
  with members:
    - "downlink and uplink decoupling in two tier heterogeneous networks with multi antenna base stations"
    - "optimal joint power and subcarrier allocation for full duplex multicarrier non orthogonal multiple access systems"
    - "fundamentals of the downlink green coverage and energy efficiency in heterogeneous networks"
    - "traffic management for heterogeneous networks with opportunistic unlicensed spectrum sharing"
    - "full duplex mimo small cell networks with interference cancellation"
    - "on the limits of coexisting coverage and capacity in multi rat heterogeneous networks"
    - "random cell association and void probability in poisson distributed cellular networks"
    - "why to decouple the uplink and downlink in cellular networks and how to do it"

Connected through hyperedge HE-5 (induced by source paper "resource optimization and power allocation in in band full duplex ibfd enabled non orthogonal multiple access networks"):
  with members:
    - "sub channel assignment power allocation and user scheduling for non orthogonal multiple access networks"
    - "performance evaluation of user scheduling for full duplex small cells in ultra dense networks"
    - "a survey of downlink non orthogonal multiple access for 5g wireless communication networks"
    - "optimal joint power and subcarrier allocation for full duplex multicarrier non orthogonal multiple access systems"
    - "resource allocation in ofdma networks with half duplex and imperfect full duplex users"
    - "dynamic user clustering and power allocation for uplink and downlink non orthogonal multiple access noma systems"
    - "matching theory for future wireless networks fundamentals and applications"
    - "hybrid full half duplex system analysis in heterogeneous wireless networks"

Connected through hyperedge HE-6 (induced by source paper "area spectral efficiency and coverage for mixed duplexing networks with directional transmissions"):
  with members:
    - "throughput and coverage for a mixed full and half duplex small cell network"
    - "in band full duplex communications for cellular networks with partial uplink downlink overlap"
    - "throughput analysis for wireless networks with full duplex radios"
    - "hybrid full half duplex system analysis in heterogeneous wireless networks"
    - "in band full duplex wireless challenges and opportunities"
    - "analytical modeling of uplink cellular networks"
    - "a tractable approach to coverage and rate in cellular networks"

Connected through hyperedge HE-7 (induced by source paper "joint user scheduling and power optimization in full duplex cells with successive interference cancellation"):
  with members:
    - "joint cell muting and user scheduling in multi cell networks with temporal fairness"
    - "experiment driven characterization of full duplex wireless systems"

Connected through hyperedge HE-8 (induced by source paper "spectral efficient and energy aware clustering in cellular networks"):
  with members:
    - "a survey on device to device communication in cellular 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.NI(Networking and Internet Architecture)