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: "femto macro cellular interference control with subband scheduling and interference cancelation"
  Abstract: A significant technical challenge in deploying femtocells is controlling the interference from the underlay of femtos onto the overlay of macros. This paper presents a novel interference control method where the macrocell bandwidth is partitioned into subbands, and the short-range femtocell links adaptively allocate their power across the subbands based on a load-spillage power control method. The scheme can improve rate distribution in the macro network while also providing opportunities for short-range communication as well. Moreover, the proposed scheme requires minimal interference coordination communication between the femtos and macros, which is one of the main challenges in femtocell systems. Also, simulations show certain advantages over simpler orthogonalization schemes or power control schemes without subband partitioning. Further modest gains may also be possible with interference cancelation.

Connected through hyperedge HE-1 (induced by source paper "transmit power minimization in small cell networks under time average qos constraints"):
  with members:
    - "open vs closed access femtocells in the uplink"
    - "dynamic resource allocation in cognitive radio networks"
    - "stability and delay of zero forcing sdma with limited feedback"
    - "training and feedback optimization for multiuser mimo downlink"
    - "delay optimal power and precoder adaptation for multi stream mimo systems"
    - "on peak versus average interference power constraints for protecting primary users in cognitive radio networks"

Connected through hyperedge HE-2 (induced by source paper "small cell traffic balancing over licensed and unlicensed bands"):
  with members:
    - "nearly optimal resource allocation for downlink ofdma in 2 d cellular networks"
    - "femtocell networks a survey"

Connected through hyperedge HE-3 (induced by source paper "on the coexistence of macrocell spatial multiplexing and cognitive femtocells"):
  with members:
    - "transmission schemes based on sum rate analysis in distributed antenna systems"
    - "modeling and analysis of k tier downlink heterogeneous cellular networks"
    - "open vs closed access femtocells in the uplink"
    - "femtocell networks a survey"
    - "multiuser mimo achievable rates with downlink training and channel state feedback"

Connected through hyperedge HE-4 (induced by source paper "wireless scheduling with dominant interferers and applications to femtocellular interference cancellation"):
  with members:
    - "belief propagation methods for intercell interference coordination"
    - "max product for maximum weight matching convergence correctness and lp duality"
    - "femtocell networks a survey"
    - "gaussian interference channel capacity to within one bit"

Connected through hyperedge HE-5 (induced by source paper "spectrum leasing as an incentive towards uplink macrocell and femtocell cooperation"):
  with members:
    - "cooperative games with overlapping coalitions"
    - "open vs closed access femtocells in the uplink"
    - "power control in two tier femtocell networks"
    - "femtocell networks a survey"

Connected through hyperedge HE-6 (induced by source paper "the feasibility of scalable video streaming over femtocell networks"):
  with members:
    - "power control in two tier femtocell networks"
    - "femtocell networks a survey"

Connected through hyperedge HE-7 (induced by source paper "price based resource allocation for spectrum sharing femtocell networks a stackelberg game approach"):
  with members:
    - "power control in two tier femtocell networks"
    - "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"
    - "interference mitigation using uplink power control for two tier femtocell networks"
    - "spectrum sharing between cellular and mobile ad hoc networks transmission capacity trade off"
    - "femtocell networks a survey"

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.NI(Networking and Internet Architecture)