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: "aloha random access that operates as a rateless code"
  Abstract: Various applications of wireless Machine-to-Machine (M2M) communications have rekindled the research interest in random access protocols, suitable to support a large number of connected devices. Slotted ALOHA and its derivatives represent a simple solution for distributed random access in wireless networks. Recently, a framed version of slotted ALOHA gained renewed interest due to the incorporation of successive interference cancellation (SIC) in the scheme, which resulted in substantially higher throughputs. Based on similar principles and inspired by the rateless coding paradigm, a frameless approach for distributed random access in slotted ALOHA framework is described in this paper. The proposed approach shares an operational analogy with rateless coding, expressed both through the user access strategy and the adaptive length of the contention period, with the objective to end the contention when the instantaneous throughput is maximized. The paper presents the related analysis, providing heuristic criteria for terminating the contention period and showing that very high throughputs can be achieved, even for a low number for contending users. The demonstrated results potentially have more direct practical implications compared to the approaches for coded random access that lead to high throughputs only asymptotically.

Connected through hyperedge HE-1 (induced by source paper "online estimation and adaptation for random access with successive interference cancellation"):
  with members:
    - "maximum sum rate of slotted aloha with successive interference cancellation"
    - "massive non orthogonal multiple access for cellular iot potentials and limitations"
    - "random access protocols for massive mimo"
    - "coded slotted aloha a graph based method for uncoordinated multiple access"
    - "graph based random access for the collision channel without feedback capacity bound"

Connected through hyperedge HE-2 (induced by source paper "random noma with cross slot successive interference cancellation packet recovery"):
  with members:
    - "maximum sum rate of slotted aloha with successive interference cancellation"
    - "noma based random access with multichannel aloha"
    - "irregular repetition slotted aloha over the rayleigh block fading channel with capture"
    - "maximum sum rate of slotted aloha with capture"
    - "coded slotted aloha a graph based method for uncoordinated multiple access"

Connected through hyperedge HE-3 (induced by source paper "reliability latency performance of frameless aloha with and without feedback"):
  with members:
    - "finite length analysis of irregular repetition slotted aloha in the waterfall region"
    - "on the modeling and performance assessment of random access with sic"
    - "optimized frameless aloha for cooperative base stations with overlapped coverage areas"
    - "frameless aloha with reliability latency guarantees"
    - "inactivation decoding of lt and raptor codes analysis and code design"
    - "finite length analysis of frameless aloha"
    - "on frame asynchronous coded slotted aloha asymptotic finite length and delay analysis"
    - "error floor analysis of coded slotted aloha over packet erasure channels"

Connected through hyperedge HE-4 (induced by source paper "protograph ldpc code design for asynchronous random access"):
  with members:
    - "enhancing contention resolution aloha using combining techniques"
    - "finite length analysis of irregular repetition slotted aloha in the waterfall region"
    - "random access channel coding in the finite blocklength regime"
    - "on frame asynchronous coded slotted aloha asymptotic finite length and delay analysis"
    - "error floor analysis of coded slotted aloha over packet erasure channels"
    - "coded slotted aloha a graph based method for uncoordinated multiple access"
    - "low density parity check codes for nonergodic block fading channels"

Connected through hyperedge HE-5 (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"
    - "probabilistic rateless multiple access for machine to machine communication"
    - "scma for downlink multiple access of 5g wireless networks"
    - "near capacity adaptive analog fountain codes for wireless channels"
    - "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-6 (induced by source paper "compressive random access with multiple resource blocks and fast retrial"):
  with members:
    - "sparse signal processing for grant free massive connectivity a future paradigm for random access protocols in the internet of things"
    - "compressive coded random access for massive mtc traffic in 5g systems"
    - "massive machine type communications in 5g physical and mac layer solutions"
    - "rank awareness in joint sparse recovery"

Connected through hyperedge HE-7 (induced by source paper "multiple relay slotted aloha performance analysis and bounds"):
  with members:
    - "enhancing contention resolution aloha using combining techniques"
    - "cooperative slotted aloha for massive m2m random access using directional antennas"
    - "coded slotted aloha a graph based method for uncoordinated multiple access"
    - "cooperative slotted aloha for multi base station systems"

Connected through hyperedge HE-8 (induced by source paper "enhancing contention resolution aloha using combining techniques"):
  with members:
    - "error floor analysis of coded slotted aloha over packet erasure channels"
    - "all to all broadcast for vehicular networks based on coded slotted aloha"
    - "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"
    - "optimum header positioning in successive interference cancellation sic based aloha"
    - "sliding window based contention resolution diversity slotted aloha"
    - "enhanced contention resolution aloha ecra"

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)