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: "resource allocation for multi user downlink urllc ofdma systems"
  Abstract: In this paper, we study resource allocation for downlink orthogonal frequency division multiple access (OFDMA) systems with the objective to enable ultra-reliable low latency communication (URLLC). To meet the stringent delay requirements of URLLC, the impact of short packet communication is taken into account for resource allocation algorithm design. In particular, the resource allocation design is formulated as a weighted system sum throughput maximization problem with quality-of-service (QoS) constraints for the URLLC users. The formulated problem is non-convex, and hence, finding the global optimum solution entails a high computational complexity. Thus, an algorithm based on successive convex optimization is proposed to find a sub-optimal solution with polynomial time complexity. Simulation results confirm that the proposed algorithm facilities URLLC and significantly improves the system sum throughput compared to two benchmark schemes.

Connected through hyperedge HE-1 (induced by source paper "robust urllc packet scheduling of ofdm systems"):
  with members:
    - "ultrareliable and low latency communication techniques for tactile internet services"
    - "a vision of 6g wireless systems applications trends technologies and open research problems"
    - "resource allocation and harq optimization for urllc traffic in 5g wireless networks"
    - "short packet downlink transmission with non orthogonal multiple access"
    - "cross layer optimization for ultra reliable and low latency radio access networks"
    - "energy efficient packet scheduling with finite blocklength codes convexity analysis and efficient algorithms"
    - "coordinated beamforming for multiuser miso interference channel under rate outage constraints"
    - "quasi static multiple antenna fading channels at finite blocklength"

Connected through hyperedge HE-2 (induced by source paper "resource allocation for secure multi user downlink miso urllc systems"):
  with members:
    - "secure short packet communications for mission critical iot applications"
    - "resource allocation for multi user downlink miso ofdma urllc systems"
    - "ultra reliable and low latency wireless communication tail risk and scale"
    - "robust and secure resource allocation for full duplex miso multicarrier noma systems"
    - "wiretap channels nonasymptotic fundamental limits"
    - "coding in the finite blocklength regime bounds based on laplace integrals and their asymptotic approximations"
    - "optimal joint power and subcarrier allocation for full duplex multicarrier non orthogonal multiple access systems"
    - "energy efficient packet scheduling with finite blocklength codes convexity analysis and efficient algorithms"

Connected through hyperedge HE-3 (induced by source paper "resource allocation for multi user downlink miso ofdma urllc systems"):
  with members:
    - "energy latency tradeoff in ultra reliable low latency communication with retransmissions"
    - "robust and secure resource allocation for full duplex miso multicarrier noma systems"
    - "joint sum rate and error probability optimization finite blocklength analysis"
    - "cross layer optimization for ultra reliable and low latency radio access networks"
    - "coding in the finite blocklength regime bounds based on laplace integrals and their asymptotic approximations"
    - "optimal joint power and subcarrier allocation for full duplex multicarrier non orthogonal multiple access systems"
    - "energy efficient packet scheduling with finite blocklength codes convexity analysis and efficient algorithms"
    - "ultra reliable communication in 5g wireless systems"

Connected through hyperedge HE-4 (induced by source paper "multiplexing gain region of sectorized cellular networks with mixed delay constraints"):
  with members:
    - "non orthogonal multiplexing of ultra reliable and broadband services in fog radio architectures"
    - "coexistence of urllc and embb services in the c ran uplink an information theoretic study"
    - "channels with cooperation links that may be absent"
    - "layered uplink transmission in clustered cellular networks"
    - "optimal dynamic resource allocation for multi antenna broadcasting with heterogeneous delay constrained traffic"

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)