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: "linear transceiver design for a mimo interfering broadcast channel achieving max min fairness"
  Abstract: We consider the problem of linear transceiver design to achieve max-min fairness in a downlink MIMO multicell network. This problem can be formulated as maximizing the minimum rate among all the users in an interfering broadcast channel (IBC). In this paper we show that when the number of antennas is at least two at each of the transmitters and the receivers, the min rate maximization problem is NP-hard in the number of users. Moreover, we develop a low-complexity algorithm for this problem by iteratively solving a sequence of convex subproblems, and establish its global convergence to a stationary point of the original minimum rate maximization problem. Numerical simulations show that this algorithm is efficient in achieving fairness among all the users.

Connected through hyperedge HE-1 (induced by source paper "load balancing user association in millimeter wave mimo networks"):
  with members:
    - "time fractional user association in millimeter wave mimo networks"
    - "downlink cell association and load balancing for joint millimeter wave microwave cellular networks"
    - "large scale convex optimization for ultra dense cloud ran"
    - "a survey of millimeter wave mmwave communications for 5g opportunities and challenges"
    - "probabilistic omnidirectional path loss models for millimeter wave outdoor communications"
    - "heterogeneous cloud radio access networks a new perspective for enhancing spectral and energy efficiencies"
    - "optimal user cell association for massive mimo wireless networks"
    - "distributed linear precoder optimization and base station selection for an uplink heterogeneous network"

Connected through hyperedge HE-2 (induced by source paper "sum rate maximization for linearly precoded downlink multiuser miso systems with partial csit a rate splitting approach"):
  with members:
    - "miso networks with imperfect csit a topological rate splitting approach"
    - "robust transmission in downlink multiuser miso systems a rate splitting approach"
    - "a rate splitting strategy for massive mimo with imperfect csit"
    - "sum rate maximization for mu miso with partial csit using joint multicasting and broadcasting"
    - "rate analysis of two receiver miso broadcast channel with finite rate feedback a rate splitting approach"
    - "achieving max min fairness for mu miso with partial csit a multicast assisted transmission"
    - "optimal multiuser transmit beamforming a difficult problem with a simple solution structure"
    - "ammse optimization for multiuser miso systems with imperfect csit and perfect csir"

Connected through hyperedge HE-3 (induced by source paper "role of interference alignment in wireless cellular network optimization"):
  with members:
    - "joint beamforming and power control in coordinated multicell max min duality effective network and large system transition"
    - "multilevel topological interference management"
    - "on the feasibility of linear interference alignment for mimo interference broadcast channels with constant coefficients"
    - "genie chain and degrees of freedom of symmetric mimo interference broadcast channels"
    - "degrees of freedom of mimo cellular networks decomposition and linear beamforming design"
    - "on the degrees of freedom achievable through interference alignment in a mimo interference channel"
    - "a feasibility test for linear interference alignment in mimo channels with constant coefficients"
    - "degrees of freedom of mimo x networks spatial scale invariance one sided decomposability and linear feasibility"

Connected through hyperedge HE-4 (induced by source paper "robust transmission in downlink multiuser miso systems a rate splitting approach"):
  with members:
    - "sum rate maximization for linearly precoded downlink multiuser miso systems with partial csit a rate splitting approach"
    - "a rate splitting approach to robust multiuser miso transmission"
    - "a rate splitting strategy for massive mimo with imperfect csit"
    - "sum rate maximization for mu miso with partial csit using joint multicasting and broadcasting"
    - "rate analysis of two receiver miso broadcast channel with finite rate feedback a rate splitting approach"
    - "achieving max min fairness for mu miso with partial csit a multicast assisted transmission"
    - "aligned image sets under channel uncertainty settling a conjecture by lapidoth shamai and wigger on the collapse of degrees of freedom under finite precision csit"
    - "degrees of freedom of time correlated miso broadcast channel with delayed csit"

Connected through hyperedge HE-5 (induced by source paper "parallel and distributed methods for nonconvex optimization part ii applications"):
  with members:
    - "parallel selective algorithms for big data optimization"
    - "parallel and distributed methods for nonconvex optimization part i theory"
    - "decomposition by partial linearization parallel optimization of multi agent systems"
    - "weighted fair multicast multigroup beamforming under per antenna power constraints"
    - "alternating rate profile optimization in single stream mimo interference channels"
    - "coordinated multicast beamforming in multicell networks"
    - "distributed optimal beamformers for cognitive radios robust to channel uncertainties"
    - "sum rate maximization in two way af mimo relaying polynomial time solutions to a class of dc programming problems"

Connected through hyperedge HE-6 (induced by source paper "a rate splitting approach to robust multiuser miso transmission"):
  with members:
    - "a rate splitting strategy for massive mimo with imperfect csit"
    - "sum rate maximization for mu miso with partial csit using joint multicasting and broadcasting"
    - "rate analysis of two receiver miso broadcast channel with finite rate feedback a rate splitting approach"
    - "achieving max min fairness for mu miso with partial csit a multicast assisted transmission"
    - "degrees of freedom of time correlated miso broadcast channel with delayed csit"
    - "robust linear precoder design for multi cell downlink transmission"
    - "multiuser mimo achievable rates with downlink training and channel state feedback"
    - "mimo broadcast channels with finite rate feedback"

Connected through hyperedge HE-7 (induced by source paper "dynamic spectrum management a complete complexity characterization"):
  with members:
    - "complexity analysis of joint subcarrier and power allocation for the cellular downlink ofdma system"
    - "on the complexity of joint subcarrier and power allocation for multi user ofdma systems"
    - "on the scale algorithm for multiuser multicarrier power spectrum management"

Connected through hyperedge HE-8 (induced by source paper "sum rate maximization for mu miso with partial csit using joint multicasting and broadcasting"):
  with members:
    - "sum rate maximization for linearly precoded downlink multiuser miso systems with partial csit a rate splitting approach"
    - "miso broadcast channel with imperfect and un matched csit in the frequency domain dof region and transmission strategies"
    - "degrees of freedom of time correlated miso broadcast channel with delayed csit"

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)