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: "joint bandwidth and power allocation with admission control in wireless multi user networks with and without relaying"
  Abstract: Equal allocation of bandwidth and/or power may not be efficient for wireless multi-user networks with limited bandwidth and power resources. Optimal joint bandwidth and power allocation strategies for wireless multi-user networks with and without relaying are proposed in this paper for (1) the maximization of the sum capacity of all users; (2) the maximization of the worst user capacity; and (3) the minimization of the total power consumption of all users. It is shown that the proposed allocation problems are convex and, therefore, can be solved efficiently. Moreover, joint bandwidth and power allocation for admission control is considered. A suboptimal greedy search algorithm is developed to solve the admission control problem efficiently. Instructive analysis of the greedy search shows that it can achieve good performance, and the condition under which the greedy search is optimal is derived. The formal and in-depth analysis of the greedy search algorithm presented in this paper can serve as a benchmark for analyzing similar algorithms in other applications. The performance improvements offered by the proposed optimal joint bandwidth and power allocation are demonstrated by simulations. The advantages of the suboptimal greedy search algorithm for admission control are also shown in numerical results.

Connected through hyperedge HE-1 (induced by source paper "sample approximation based deflation approaches for chance sinr constrained joint power and admission control"):
  with members:
    - "coordinated beamforming for multiuser miso interference channel under rate outage constraints"
    - "joint power and admission control via linear programming deflation"
    - "a decentralized method for joint admission control and beamforming in coordinated multicell downlink"
    - "probabilistic sinr constrained robust transmit beamforming a bernstein type inequality based conservative approach"

Connected through hyperedge HE-2 (induced by source paper "tier aware resource allocation in ofdma macrocell small cell networks"):
  with members:
    - "evolution toward 5g multi tier cellular wireless networks an interference management perspective"
    - "joint power and admission control via linear programming deflation"
    - "on the complexity of joint subcarrier and power allocation for multi user ofdma systems"
    - "refim a practical interference management in heterogeneous wireless access networks"
    - "price based resource allocation for spectrum sharing femtocell networks a stackelberg game approach"
    - "distributed and optimal reduced primal dual algorithm for uplink ofdm resource allocation"

Connected through hyperedge HE-3 (induced by source paper "low complexity resource allocation for load minimization in ofdma wireless networks"):
  with members:
    - "resource allocation for downlink cellular ofdma systems part i optimal allocation"

Connected through hyperedge HE-4 (induced by source paper "optimal bandwidth and power allocation for sum ergodic capacity under fading channels in cognitive radio networks"):
  with members:
    - "cooperative resource allocation games under spectral mask and total power constraints"
    - "on ergodic sum capacity of fading cognitive multiple access and broadcast channels"
    - "optimal power allocation for fading channels in cognitive radio networks ergodic capacity and outage capacity"
    - "exploiting multi antennas for opportunistic spectrum sharing in cognitive radio networks"
    - "on peak versus average interference power constraints for protecting primary users in cognitive radio networks"
    - "investigation on multiuser diversity in spectrum sharing based cognitive radio networks"
    - "joint design and separation principle for opportunistic spectrum access in the presence of sensing errors"

Connected through hyperedge HE-5 (induced by source paper "optimal distributed resource allocation for decode and forward relay networks"):
  with members:
    - "relay selection and power allocation in cooperative cellular networks"
    - "distributive subband allocation power and rate control for relay assisted ofdma cellular system with imperfect system state knowledge"
    - "relay assisted f tdma ad hoc networks node classification power allocation and relaying strategies"

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)