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 mimo interference channel"
  Abstract: This paper considers the so-called multiple-input-multiple-output interference channel (MIMO-IC) which has relevance in applications such as multi-cell coordination in cellular networks as well as spectrum sharing in cognitive radio networks among others. We consider a beamforming design framework based on 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 in several papers to be instrumental to optimizing the rates in a multiple-input-single-output interference channel MISO-IC (i.e. where receivers have no interference canceling capability). Here, by using the framework of Bayesian games, we shed more light on these game-theoretic concepts in the more general context of MIMO channels and more particularly when coordinating parties only have channel state information (CSI) of channels that they can measure directly. This allows us to derive distributed beamforming techniques. We draw parallels with existing work on the MIMO-IC, including rate-optimizing and interference-alignment precoding techniques, showing how such techniques may be improved or re-interpreted through a common prism based on balancing egoistic and altruistic beamforming. Our analysis and simulations currently limited to single stream transmission per user attest the improvements over known interference alignment based methods in terms of sum rate performance in the case of so-called asymmetric networks.

Connected through hyperedge HE-1 (induced by source paper "on feasibility of interference alignment in mimo interference networks"):
  with members:
    - "real interference alignment exploiting the potential of single antenna systems"
    - "interference alignment for secrecy"
    - "the approximate capacity of the many to one and one to many gaussian interference channels"
    - "on the degrees of freedom of the k user gaussian interference channel"
    - "interference alignment with asymmetric complex signaling settling the host madsen nosratinia conjecture"
    - "k user interference channels achievable secrecy rate and degrees of freedom"
    - "degrees of freedom of the k user m times n mimo interference channel"
    - "a layered lattice coding scheme for a class of three user gaussian interference channels"

Connected through hyperedge HE-2 (induced by source paper "linear transceiver design for interference alignment complexity and computation"):
  with members:
    - "on the degrees of freedom achievable through interference alignment in a mimo interference channel"
    - "rate region frontiers for n user interference channel with interference as noise"
    - "on feasibility of interference alignment in mimo interference networks"
    - "on feasibility of interference alignment in mimo interference networks"
    - "capacity bounds for the gaussian interference channel"
    - "optimal linear precoding strategies for wideband noncooperative systems based on game theory part i nash equilibria"
    - "competitive design of multiuser mimo systems based on game theory a unified view"
    - "optimal linear precoding strategies for wideband non cooperative systems based on game theory part ii algorithms"

Connected through hyperedge HE-3 (induced by source paper "balancing egoism and altruism on the interference channel the mimo case"):
  with members:
    - "approaching the capacity of wireless networks through distributed interference alignment"
    - "linear processing and sum throughput in the multiuser mimo downlink"

Connected through hyperedge HE-4 (induced by source paper "on feasibility of interference alignment in mimo interference networks"):
  with members:
    - "real interference alignment exploiting the potential of single antenna systems"
    - "interference alignment for secrecy"
    - "the approximate capacity of the many to one and one to many gaussian interference channels"
    - "on the degrees of freedom of the k user gaussian interference channel"
    - "interference alignment with asymmetric complex signaling settling the host madsen nosratinia conjecture"
    - "k user interference channels achievable secrecy rate and degrees of freedom"
    - "degrees of freedom of the k user m times n mimo interference channel"
    - "a layered lattice coding scheme for a class of three user gaussian interference channels"

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)