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 efficient ofdma networks maintaining statistical qos guarantees for delay sensitive traffic"):
  Abstract: An energy-efficient design is proposed under specific statistical quality-of-service (QoS) guarantees for delay-sensitive traffic in the downlink orthogonal frequency-division multiple-access networks. This design is based on Wu’s effective capacity (EC) concept, which characterizes the maximum throughput of a system subject to statistical delay-QoS requirements at the data-link layer. In the particular context considered, our main contributions consist of quantifying the effective energy-efficiency (EEE)-versus-EC tradeoff and characterizing the delay-sensitive traffic as a function of the QoS-exponent    $\theta $   , which expresses the exponential decay rate of the delay-QoS violation probabilities. Upon exploiting the properties of fractional programming, the originally quasi-concave EEE optimization problem having a fractional form is transformed into a subtractive optimization problem by applying Dinkelbach’s method. As a result, an iterative inner–outer loop-based resource allocation algorithm is conceived for efficiently solving the transformed EEE optimization problem. Our simulation results demonstrate that the proposed scheme converges within a few Dinkelbach algorithm’s iterations to the desired solution accuracy. Furthermore, the impact of the circuitry power, the QoS-exponent, and the power amplifier inefficiency is characterized numerically. These results reveal that the optimally allocated power maximizing the EEE decays exponentially with respect to both the circuitry power and the QoS-exponent, while decaying linearly with respect to the power amplifier inefficiency.

Includes members:
  Member "distributed energy spectral efficiency optimization for partial full interference alignment in multi user multi relay multi cell mimo systems":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "a survey of multi objective optimization in wireless sensor networks metrics algorithms and open problems")
  Member "large scale mimo is capable of eliminating power thirsty channel coding for wireless transmission of hevc h 265 video":
    also connected through other hyperedges:
      (none)
  Member "spectral and energy spectral efficiency optimization of joint transmit and receive beamforming based multi relay mimo ofdma cellular networks":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "low complexity downlink user selection for massive mimo systems")
  Member "maximizing energy efficiency in multi relay ofdma cellular networks":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "energy efficient resource allocation for time varying ofdma relay systems with hybrid energy supplies")
  Member "achieving maximum energy efficiency in multi relay ofdma cellular networks a fractional programming approach":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "twin timescale radio resource management for ultra reliable and low latency vehicular networks")
  Member "qos aware base station selections for distributed mimo links in broadband wireless networks":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "effective capacity in wireless networks a comprehensive survey")
  Member "statistical delay control and qos driven power allocation over two hop wireless relay links":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "effective capacity in wireless networks a comprehensive survey")
  Member "the impact of qos constraints on the energy efficiency of fixed rate wireless transmissions":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "joint queue aware and channel aware delay optimal scheduling of arbitrarily bursty traffic over multi state time varying channels")

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)