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: "multiuser miso transmitter optimization for intercell interference mitigation"
  Abstract: The transmitter optimization (i.e., steering vectors and power allocation) for a MISO broadcast channel subject to general linear constraints is considered. Such constraints include, as special cases, the sum-power, per-antenna or per-group-of-antennas power, and “forbidden interference direction” constraints. We consider both the optimal dirty-paper coding and simple suboptimal linear zero-forcing beamforming strategies, and provide numerically efficient algorithms that solve the problem in its most general form. As an application, we consider a multicell scenario with partial cell cooperation, where each cell optimizes its transmitter by taking into account interference constraints on specific users in adjacent cells. The effectiveness of the proposed method is evaluated in a simple system scenario including two adjacent cells and distance-dependent pathloss, under different fairness criteria that emphasize the bottleneck effect of users near the cell “edge.” Our results show that this “active” Intercell Interference (ICI) mitigation outperforms the conventional “static” ICI mitigation based on fractional frequency reuse.

Connected through hyperedge HE-1 (induced by source paper "the capacity and optimal signaling for gaussian mimo channels under interference constraints full version"):
  with members:
    - "the capacity of gaussian mimo channels under total and per antenna power constraints"
    - "resource management in non orthogonal multiple access networks for 5g and beyond"
    - "interference management in 5g reverse tdd hetnets with wireless backhaul a large system analysis"
    - "cooperative algorithms for mimo interference channels"
    - "dynamic resource allocation in cognitive radio networks"
    - "miso capacity with per antenna power constraint"
    - "capacity bounds for the gaussian interference channel"
    - "on gaussian mimo bc mac duality with multiple transmit covariance constraints"

Connected through hyperedge HE-2 (induced by source paper "dual link algorithm for the weighted sum rate maximization in mimo interference channels"):
  with members:
    - "the weighted sum rate maximization in mimo interference networks the minimax lagrangian duality and algorithm"
    - "mimo b mac interference network optimization under rate constraints by polite water filling and duality"
    - "duality polite water filling and optimization for mimo b mac interference networks and itree networks"
    - "mimo broadcast channel optimization under general linear constraints"
    - "on gaussian mimo bc mac duality with multiple transmit covariance constraints"
    - "weighted sum rate optimization for cognitive radio mimo broadcast channels"

Connected through hyperedge HE-3 (induced by source paper "achieving large multiplexing gain in distributed antenna systems via cooperation with pcell technology"):
  with members:
    - "massive mimo for next generation wireless systems"
    - "network mimo with linear zero forcing beamforming large system analysis impact of channel estimation and reduced complexity scheduling"
    - "achieving massive mimo spectral efficiency with a not so large number of antennas"
    - "degrees of freedom of interference channels with comp transmission and reception"
    - "fundamental limits of cooperation"
    - "compute and forward strategies for cooperative distributed antenna systems"

Connected through hyperedge HE-4 (induced by source paper "performance modeling of next generation wireless networks"):
  with members:
    - "an overview of load balancing in hetnets old myths and open problems"
    - "scalable synchronization and reciprocity calibration for distributed multiuser mimo"
    - "scaling up mimo opportunities and challenges with very large arrays"
    - "downlink rate distribution in heterogeneous cellular networks under generalized cell selection"
    - "network mimo with linear zero forcing beamforming large system analysis impact of channel estimation and reduced complexity scheduling"
    - "achieving massive mimo spectral efficiency with a not so large number of antennas"
    - "modeling and analysis of k tier downlink heterogeneous cellular networks"
    - "cost efficient high capacity indoor wireless access denser wi fi or coordinated pico cellular"

Connected through hyperedge HE-5 (induced by source paper "on secrecy capacity of fast fading mimome wiretap channels with statistical csit"):
  with members:
    - "on secrecy capacity of fast fading multiple input wiretap channels with statistical csit"
    - "on secrecy rate of the generalized artificial noise assisted secure beamforming for wiretap channels"
    - "on secrecy rate analysis of mimo wiretap channels driven by finite alphabet input"
    - "secure transmission with multiple antennas ii the mimome wiretap channel"
    - "hessian and concavity of mutual information differential entropy and entropy power in linear vector gaussian channels"
    - "towards the secrecy capacity of the gaussian mimo wire tap channel the 2 2 1 channel"
    - "diversity multiplexing tradeoff for the multiple antenna wire tap channel"
    - "on the secrecy capacity of fading channels"

Connected through hyperedge HE-6 (induced by source paper "joint precoding and multivariate backhaul compression for the downlink of cloud radio access networks"):
  with members:
    - "decomposition by partial linearization parallel optimization of multi agent systems"
    - "reverse compute and forward a low complexity architecture for downlink distributed antenna systems"
    - "distributed robust multicell coordinated beamforming with imperfect csi an admm approach"
    - "robust and efficient distributed compression for cloud radio access networks"
    - "decomposition by successive convex approximation a unifying approach for linear transceiver design in heterogeneous networks"
    - "compute and forward strategies for cooperative distributed antenna systems"
    - "optimized data sharing in multicell mimo with finite backhaul capacity"
    - "quantized compute and forward a low complexity architecture for distributed antenna systems"

Connected through hyperedge HE-7 (induced by source paper "spatially selective artificial noise aided transmit optimization for miso multi eves secrecy rate maximization"):
  with members:
    - "outage constrained secrecy rate maximization using cooperative jamming"
    - "robust secure transmission in miso channels based on worst case optimization"
    - "on cooperative relaying schemes for wireless physical layer security"
    - "optimal and robust transmit designs for miso channel secrecy by semidefinite programming"
    - "solutions for the mimo gaussian wiretap channel with a cooperative jammer"
    - "outage constrained robust transmit optimization for multiuser miso downlinks tractable approximations by conic optimization"
    - "secure transmission with artificial noise over fading channels achievable rate and optimal power allocation"
    - "collaborative relay beamforming for secrecy"

Connected through hyperedge HE-8 (induced by source paper "scalable synchronization and reciprocity calibration for distributed multiuser mimo"):
  with members:
    - "network mimo with linear zero forcing beamforming large system analysis impact of channel estimation and reduced complexity scheduling"
    - "achieving massive mimo spectral efficiency with a not so large number of antennas"
    - "airsync enabling distributed multiuser mimo with full spatial multiplexing"
    - "femtocell networks a survey"
    - "multiuser mimo achievable rates with downlink training and channel state feedback"

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)