human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "energy and spectral efficiency tradeoff in ofdma networks via antenna selection strategy"):
  Abstract: In this paper, we investigate the joint resource allocation and antenna selection algorithm design for uplink orthogonal frequency division multiple access (OFDMA) communication system. We propose a multi-objective optimization framework to strike a balance between spectral efficiency (SE) and energy efficiency (EE). The resource allocation design is formulated as a multi-objective optimization problem (MOOP), where the conflicting objective functions are linearly combined into a single objective function employing the weighted sum method. In order to develop an efficient solution, the majorization minimization (MM) approach is proposed where a surrogate function serves as a lower bound of the objective function. Then an iterative suboptimal algorithm is proposed to maximize the approximate objective function. Numerical results unveil an interesting tradeoff between the considered conflicting system design objectives and reveal the improved EE and SE facilitated by the proposed transmit antenna selection in OFDMA systems.

Includes members:
  Member "joint user association and resource allocation in the uplink of heterogeneous networks":
    also connected through other hyperedges:
      (none)
  Member "energy efficiency maximization via joint sub carrier assignment and power control for ofdma full duplex networks":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "performance trade off between uplink and downlink in full duplex communications")
  Member "multi objective optimization for energy and spectral efficiency tradeoff in in band full duplex ibfd communication":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "performance trade off between uplink and downlink in full duplex communications")
  Member "downlink energy efficiency of power allocation and wireless backhaul bandwidth allocation in heterogeneous small cell networks":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "joint precoding and power control in small cell networks with proportional rate miso bc backhaul")
  Member "spectral and energy efficiency trade offs in cellular networks":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "interference alignment for downlink cellular networks joint scheduling and precoding")
  Member "an overview of sustainable green 5g networks":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "cross layer scheduling and beamforming in smart grid powered cellular networks with heterogeneous energy coordination")
  Member "optimal joint power and subcarrier allocation for full duplex multicarrier non orthogonal multiple access systems":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "joint trajectory and resource allocation design for energy efficient secure uav communication systems")
  Member "energy efficient heterogeneous cellular networks with spectrum underlay and overlay access":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "energy efficiency maximization via joint sub carrier assignment and power control for ofdma full duplex networks")

Question: Please tell me which class the source paper 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)