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: "probabilistic rateless multiple access for machine to machine communication"
  Abstract: Future machine-to-machine (M2M) communications need to support a massive number of devices communicating with each other with little or no human intervention. Random access techniques were originally proposed to enable M2M multiple access, but suffer from severe congestion and access delay in an M2M system with a large number of devices. In this paper, we propose a novel multiple access scheme for M2M communications based on the capacity-approaching analog fountain code to efficiently minimize the access delay and satisfy the delay requirement for each device. This is achieved by allowing M2M devices to transmit at the same time on the same channel in an optimal probabilistic manner based on their individual delay requirements. Simulation results show that the proposed scheme achieves a near optimal rate performance and at the same time guarantees the delay requirements of the devices. We further propose a simple random access strategy and characterize the required overhead. Simulation results show that the proposed approach significantly outperforms the existing random access schemes currently used in long term evolution advanced (LTE-A) standard in terms of the access delay.

Connected through hyperedge HE-1 (induced by source paper "massive access in beyond 5g iot networks with noma np hardness competitiveness and learning"):
  with members:
    - "energy efficient joint user rb association and power allocation for uplink hybrid noma oma"
    - "fast uplink grant for machine type communications challenges and opportunities"
    - "delay constrained input queued switch"
    - "dynamic user clustering and power allocation for uplink and downlink non orthogonal multiple access noma systems"

Connected through hyperedge HE-2 (induced by source paper "two layer coded channel access with collision resolution design and analysis"):
  with members:
    - "coded random access applying codes on graphs to design random access protocols"
    - "scma for downlink multiple access of 5g wireless networks"
    - "near capacity adaptive analog fountain codes for wireless channels"
    - "aloha random access that operates as a rateless code"
    - "graph based random access for the collision channel without feedback capacity bound"
    - "high throughput random access via codes on graphs coded slotted aloha"

Connected through hyperedge HE-3 (induced by source paper "sparse ofdm a compressive sensing approach to asynchronous neighbor discovery"):
  with members:
    - "massive connectivity with massive mimo part i device activity detection and channel estimation"
    - "on frame asynchronous coded slotted aloha asymptotic finite length and delay analysis"
    - "detection and combining techniques for asynchronous random access with time diversity"
    - "coded slotted aloha a graph based method for uncoordinated multiple access"
    - "many access channels the gaussian case with random user activities"
    - "asynchronous code division random access using convex optimization"
    - "neighbor discovery in a wireless sensor network multipacket reception capability and physical layer signal processing"
    - "neighbor discovery for wireless networks via compressed sensing"

Connected through hyperedge HE-4 (induced by source paper "massive multiple access based on superposition raptor codes for cellular m2m communications"):
  with members:
    - "raptor codes in the low snr regime"
    - "fundamentals of throughput maximization with random arrivals for m2m communications"

Connected through hyperedge HE-5 (induced by source paper "random multiple access for m2m communications with qos guarantees"):
  with members:
    - "prioritized random mac optimization via graph based analysis"
    - "coded random access applying codes on graphs to design random access protocols"
    - "exploiting capture effect in frameless aloha for massive wireless random access"
    - "aloha random access that operates as a rateless code"
    - "fundamentals of throughput maximization with random arrivals for m2m communications"
    - "frameless aloha protocol for wireless networks"

Connected through hyperedge HE-6 (induced by source paper "lte lte a random access for massive machine type communications in smart cities"):
  with members:
    - "massive m2m access with reliability guarantees in lte systems"
    - "code expanded random access for machine type communications"

Connected through hyperedge HE-7 (induced by source paper "raptor codes in the low snr regime"):
  with members:
    - "repeat accumulate codes for reconciliation in continuous variable quantum key distribution"
    - "protograph based raptor like ldpc codes"

Connected through hyperedge HE-8 (induced by source paper "multiple access technologies for cellular m2m communications an overview"):
  with members:
    - "massive multiple access based on superposition raptor codes for cellular m2m communications"

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)