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: "all to all broadcast for vehicular networks based on coded slotted aloha"
  Abstract: We propose an uncoordinated all-to-all broadcast protocol for periodic messages in vehicular networks based on coded slotted ALOHA (CSA). Unlike classical CSA, each user acts as both transmitter and receiver in a half-duplex mode. As in CSA, each user transmits its packet several times. The half-duplex mode gives rise to an interesting design trade-off: the more the user repeats its packet, the higher the probability that this packet is decoded by other users, but the lower the probability for this user to decode packets from others. We compare the proposed protocol with carrier sense multiple access with collision avoidance, currently adopted as a multiple access protocol for vehicular networks. The results show that the proposed protocol greatly increases the number of users in the network that reliably communicate with each other. We also provide analytical tools to predict the performance of the proposed protocol.

Connected through hyperedge HE-1 (induced by source paper "random access for massive machine type communications"):
  with members:
    - "beamwidth control for noma in hybrid mmwave communication systems"
    - "design of non orthogonal beamspace multiple access for cellular internet of things"
    - "on the performance gain of noma over oma in uplink single cell systems"
    - "multi beam noma for hybrid mmwave systems"
    - "joint pilot and payload power control for uplink mimo noma with mrc sic receivers"
    - "reliability based windowed decoding for spatially coupled ldpc codes"
    - "short packet downlink transmission with non orthogonal multiple access"
    - "a multi beam noma framework for hybrid mmwave systems"

Connected through hyperedge HE-2 (induced by source paper "enhancing contention resolution aloha using combining techniques"):
  with members:
    - "error floor analysis of coded slotted aloha over packet erasure channels"
    - "coded slotted aloha a graph based method for uncoordinated multiple access"
    - "cooperative slotted aloha for multi base station systems"
    - "the throughput of slotted aloha with diversity"
    - "aloha random access that operates as a rateless code"
    - "optimum header positioning in successive interference cancellation sic based aloha"
    - "sliding window based contention resolution diversity slotted aloha"
    - "enhanced contention resolution aloha ecra"

Connected through hyperedge HE-3 (induced by source paper "detection and combining techniques for asynchronous random access with time diversity"):
  with members:
    - "enhancing contention resolution aloha using combining techniques"
    - "cooperative slotted aloha for multi base station systems"
    - "aloha random access that operates as a rateless code"
    - "optimum header positioning in successive interference cancellation sic based aloha"
    - "enhanced contention resolution aloha ecra"
    - "frameless aloha protocol for wireless networks"

Connected through hyperedge HE-4 (induced by source paper "broadcast coded slotted aloha a finite frame length analysis"):
  with members:
    - "error floor analysis of coded slotted aloha over packet erasure channels"
    - "coded slotted aloha a graph based method for uncoordinated multiple access"
    - "ultra reliable communication in 5g wireless systems"
    - "the throughput of slotted aloha with diversity"
    - "aloha random access that operates as a rateless code"
    - "collision helps algebraic collision recovery for wireless erasure networks"

Connected through hyperedge HE-5 (induced by source paper "broadcast coded slotted aloha for vehicular communications a finite frame length analysis"):
  with members:
    - "coded slotted aloha a graph based method for uncoordinated multiple access"
    - "ultra reliable communication in 5g wireless systems"
    - "the throughput of slotted aloha with diversity"
    - "aloha random access that operates as a rateless code"
    - "collision helps algebraic collision recovery for wireless erasure networks"

Connected through hyperedge HE-6 (induced by source paper "probabilistic handshake in all to all broadcast coded slotted aloha"):
  with members:
    - "error floor analysis of coded slotted aloha over packet erasure channels"
    - "coded random access applying codes on graphs to design random access protocols"
    - "aloha random access that operates as a rateless code"
    - "high throughput random access via codes on graphs coded slotted aloha"

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)