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: "fundamental tradeoffs in communication and trajectory design for uav enabled wireless network"
  Abstract: The use of unmanned aerial vehicles (UAVs) as aerial communication platforms is of high practical value for future wireless systems such as 5G, especially for swift and on-demand deployment in temporary events and emergency situations. Compared to traditional terrestrial base stations (BSs) in cellular network, UAV-mounted aerial BSs possess stronger line-of-sight (LoS) links with the ground users due to their high altitude as well as high and flexible mobility in three-dimensional (3D) space, which can be exploited to enhance the communication performance. On the other hand, unlike terrestrial BSs that have reliable power supply, aerial BSs in practice have limited on-board energy, but require significant propulsion energy to stay airborne and support high mobility. Motivated by the above new considerations, this article aims to revisit some fundamental tradeoffs in UAV-enabled communication and trajectory design. Specifically, it is shown that communication throughput, delay, and (propulsion) energy consumption can be traded off among each other by adopting different UAV trajectory designs, which sheds new light on their traditional tradeoffs in terrestrial communication. Promising directions for future research are also discussed.

Connected through hyperedge HE-1 (induced by source paper "energy optimization for cellular connected multi uav mobile edge computing systems with multi access schemes"):
  with members:
    - "securing uav communications via joint trajectory and power control"
    - "spectral and energy efficient wireless powered iot networks noma or tdma"
    - "energy minimization for wireless communication with rotary wing uav"
    - "mobile edge computing for cellular connected uav computation offloading and trajectory optimization"
    - "the sky is not the limit lte for unmanned aerial vehicles"
    - "a tutorial on uavs for wireless networks applications challenges and open problems"
    - "uav enabled aerial base station bs iii iii capacity characterization of uav enabled two user broadcast channel"
    - "common throughput maximization in uav enabled ofdma systems with delay consideration"

Connected through hyperedge HE-2 (induced by source paper "securing uav communications via joint trajectory and power control"):
  with members:
    - "capacity characterization of uav enabled two user broadcast channel"
    - "the sky is not the limit lte for unmanned aerial vehicles"
    - "robust trajectory and transmit power design for secure uav communications"
    - "wireless powered cooperative jamming for secure ofdm system"
    - "placement optimization of uav mounted mobile base stations"
    - "joint trajectory and communication design for multi uav enabled wireless networks"
    - "securing uav communications via trajectory optimization"
    - "fundamental green tradeoffs progresses challenges and impacts on 5g networks"

Connected through hyperedge HE-3 (induced by source paper "cellular connected uav uplink association power control and interference coordination"):
  with members:
    - "capacity characterization of uav enabled two user broadcast channel"
    - "cellular connected uav potentials challenges and promising technologies"
    - "mobile networks connected drones field trials simulations and design insights"
    - "the sky is not the limit lte for unmanned aerial vehicles"
    - "cellular enabled uav communication a connectivity constrained trajectory optimization perspective"
    - "ultra reliable uav communication using altitude and cooperation diversity"
    - "interference mitigation methods for unmanned aerial vehicles served by cellular networks"
    - "uav enabled aerial base station bs iii iii capacity characterization of uav enabled two user broadcast channel"

Connected through hyperedge HE-4 (induced by source paper "optimal 3d trajectory design and resource allocation for solar powered uav communication systems"):
  with members:
    - "capacity characterization of uav enabled two user broadcast channel"
    - "resource allocation for solar powered uav communication systems"
    - "energy minimization for wireless communication with rotary wing uav"
    - "common throughput maximization in uav enabled ofdma systems with delay consideration"
    - "optimal resource allocation for power efficient mc noma with imperfect channel state information"
    - "statistical modeling of fso fronthaul channel for drone based networks"
    - "joint trajectory and communication design for multi uav enabled wireless networks"
    - "securing uav communications via trajectory optimization"

Connected through hyperedge HE-5 (induced by source paper "uav enabled communication using noma"):
  with members:
    - "capacity characterization of uav enabled two user broadcast channel"
    - "uav aided offloading for cellular hotspot"
    - "ultra reliable uav communication using altitude and cooperation diversity"
    - "joint trajectory and communication design for multi uav enabled wireless networks"
    - "non orthogonal multiple access for mmwave drones with multi antenna transmission"
    - "mobile unmanned aerial vehicles uavs for energy efficient internet of things communications"
    - "joint altitude and beamwidth optimization for uav enabled multiuser communications"
    - "energy efficient uav communication with trajectory optimization"

Connected through hyperedge HE-6 (induced by source paper "robust trajectory and transmit power design for secure uav communications"):
  with members:
    - "capacity characterization of uav enabled two user broadcast channel"
    - "the sky is not the limit lte for unmanned aerial vehicles"
    - "uav enabled cooperative jamming for improving secrecy of ground wiretap channel"
    - "joint trajectory and communication design for multi uav enabled wireless networks"
    - "securing uav communications via trajectory optimization"
    - "joint trajectory and communication design for uav enabled multiple access"
    - "wireless communications with unmanned aerial vehicles opportunities and challenges"
    - "unmanned aerial vehicle with underlaid device to device communications performance and tradeoffs"

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)