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: "balancing egoism and altruism on the interference channel the mimo case"
  Abstract: This paper considers the so-called MIMO interference channel. This situation has relevance in applications such as multi-cell coordination in cellular networks as well as spectrum sharing in cognitive radio networks among others. We address the design of precoding (i.e. beamforming) vectors at each sender with the aim of striking a compromise between beamforming gain at the intended receiver (Egoism) and the mitigation of interference created towards other receivers (Altruism). Combining egoistic and altruistic beamforming has been shown previously to be instrumental to optimizing the rates in a MISO interference channel (i.e. where receivers have no interference canceling capability) . Here we explore these game-theoretic concepts in the more general context of MIMO channels and using the framework of Bayesian games, allowing us to derive (semi-)distributed precoding techniques. We draw parallels with existing work on the MIMO interference channel, including rate-optimizing and interference-alignement precoding techniques, showing how such techniques may be improved and re-interpretated through a common prism based on balancing egoistic and altruistic beamforming.

Connected through hyperedge HE-1 (induced by source paper "signal processing and optimal resource allocation for the interference channel"):
  with members:
    - "joint power and admission control via linear programming deflation"
    - "on the degrees of freedom achievable through interference alignment in a mimo interference channel"
    - "linear transceiver design for a mimo interfering broadcast channel achieving max min fairness"
    - "averaged iterative water filling algorithm robustness and convergence"
    - "robust linear precoder design for multi cell downlink transmission"
    - "rate region frontiers for n user interference channel with interference as noise"
    - "capacity regions and sum rate capacities of vector gaussian interference channels"
    - "dynamic resource allocation in cognitive radio networks"

Connected through hyperedge HE-2 (induced by source paper "optimized transmission with improper gaussian signaling in the k user miso interference channel"):
  with members:
    - "transmit optimization with improper gaussian signaling for interference channels"
    - "pareto characterization of the multicell mimo performance region with simple receivers"
    - "robust monotonic optimization framework for multicell miso systems"
    - "achieving global optimality for weighted sum rate maximization in the k user gaussian interference channel with multiple antennas"
    - "optimal beamforming in interference networks with perfect local channel information"
    - "rate region frontiers for n user interference channel with interference as noise"
    - "cooperative interference management with miso beamforming"
    - "linear transceiver design for interference alignment complexity and computation"

Connected through hyperedge HE-3 (induced by source paper "alternating rate profile optimization in single stream mimo interference channels"):
  with members:
    - "on the pareto optimal beam structure and design for multi user mimo interference channels"
    - "pareto boundary of the rate region for single stream mimo interference channels linear transceiver design"
    - "pareto characterization of the multicell mimo performance region with simple receivers"
    - "achieving global optimality for weighted sum rate maximization in the k user gaussian interference channel with multiple antennas"
    - "linear transceiver design for a mimo interfering broadcast channel achieving max min fairness"
    - "cooperative algorithms for mimo interference channels"
    - "optimal distributed beamforming for miso interference channels"
    - "cooperative interference management with miso beamforming"

Connected through hyperedge HE-4 (induced by source paper "pareto boundary of the rate region for single stream mimo interference channels linear transceiver design"):
  with members:
    - "pareto characterization of the multicell mimo performance region with simple receivers"
    - "achieving global optimality for weighted sum rate maximization in the k user gaussian interference channel with multiple antennas"
    - "optimal beamforming in interference networks with perfect local channel information"
    - "cooperative algorithms for mimo interference channels"
    - "optimal distributed beamforming for miso interference channels"
    - "cooperative interference management with miso beamforming"
    - "optimal spectrum sharing in mimo cognitive radio networks via semidefinite programming"
    - "competitive design of multiuser mimo systems based on game theory a unified view"

Connected through hyperedge HE-5 (induced by source paper "distributed linear precoder optimization and base station selection for an uplink heterogeneous network"):
  with members:
    - "achieving global optimality for weighted sum rate maximization in the k user gaussian interference channel with multiple antennas"
    - "linear transceiver design for a mimo interfering broadcast channel achieving max min fairness"
    - "joint distributed access point selection and power allocation in cognitive radio networks"
    - "cooperative interference management with miso beamforming"
    - "on the base station selection and base station sharing in self configuring networks"
    - "competitive design of multiuser mimo systems based on game theory a unified view"

Connected through hyperedge HE-6 (induced by source paper "downlink coordinated multi point with overhead modeling in heterogeneous cellular networks"):
  with members:
    - "interference coordination random clustering and adaptive limited feedback"
    - "joint beamforming and power control in coordinated multicell max min duality effective network and large system transition"
    - "heterogeneous cellular networks with flexible cell association a comprehensive downlink sinr analysis"
    - "fundamentals of inter cell overhead signaling in heterogeneous cellular networks"
    - "fundamental limits of cooperation"
    - "modeling and analysis of k tier downlink heterogeneous cellular networks"
    - "distributed sir aware scheduling in large scale wireless networks"
    - "multi antenna communication in ad hoc networks achieving mimo gains with simo transmission"

Connected through hyperedge HE-7 (induced by source paper "decomposition by successive convex approximation a unifying approach for linear transceiver design in heterogeneous networks"):
  with members:
    - "signal processing and optimal resource allocation for the interference channel"
    - "parallel selective algorithms for big data optimization"
    - "decomposition by partial linearization parallel optimization of multi agent systems"
    - "base station activation and linear transceiver design for optimal resource management in heterogeneous networks"
    - "sparse beamforming and user centric clustering for downlink cloud radio access network"
    - "precoder design for physical layer multicasting"
    - "linear transceiver design for a mimo interfering broadcast channel achieving max min fairness"
    - "linear precoding in cooperative mimo cellular networks with limited coordination clusters"

Connected through hyperedge HE-8 (induced by source paper "joint base station clustering and beamformer design for partial coordinated transmission in heterogenous networks"):
  with members:
    - "linear transceiver design for a mimo interfering broadcast channel achieving max min fairness"
    - "lower bounds optimization for coordinated linear transmission beamformer design in multicell network downlink"
    - "linear precoding in cooperative mimo cellular networks with limited coordination clusters"
    - "cooperative multi cell block diagonalization with per base station power constraints"
    - "networked mimo with clustered linear precoding"
    - "consistency of the group lasso and multiple kernel learning"

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)