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: "on the optimal compressions in the compress and forward relay schemes"
  Abstract: ..... joint decoding provides more freedom in choosing the compression at the relay. #R##N#However, the question remains whether this freedom of selecting the compression necessarily improves the achievable rate of the original message. It has been shown in (El Gamal and Kim, 2010) that the answer is negative in the single-relay case. In this paper, it is further demonstrated that in the case of multiple relays, there is no improvement on the achievable rate by joint decoding either. More interestingly, it is discovered that any compressions not supporting successive decoding will actually lead to strictly lower achievable rates for the original message. Therefore, to maximize the achievable rate for the original message, the compressions should always be chosen to support successive decoding. Furthermore, it is shown that any compressions not completely decodable even with joint decoding will not provide any contribution to the decoding of the original message. #R##N#The above phenomenon is also shown to exist under the repetitive encoding framework recently proposed by (Lim, Kim, El Gamal, and Chung, 2010), which improved the achievable rate in the case of multiple relays. Here, another interesting discovery is that the improvement is not a result of repetitive encoding, but the benefit of delayed decoding after all the blocks have been finished. The same rate is shown to be achievable with the simpler classical encoding process of (Cover and El Gamal, 1979) with a block-by-block backward decoding process.

Connected through hyperedge HE-1 (induced by source paper "the rate distortion function of asynchronously sampled memoryless cyclostationary gaussian processes"):
  with members:
    - "the capacity of memoryless channels with sampled cyclostationary gaussian noise"
    - "on the capacity of narrowband plc channels"
    - "the distortion rate function of cyclostationary gaussian processes"
    - "frequency shift filtering for ofdm signal recovery in narrowband power line communications"
    - "the generalized asymptotic equipartition property necessary and sufficient conditions"
    - "achieving the gaussian rate distortion function by prediction"

Connected through hyperedge HE-2 (induced by source paper "flow decomposition for multi user channels part i"):
  with members:
    - "short message noisy network coding with a decode forward option"
    - "a greedy omnidirectional relay scheme"

Connected through hyperedge HE-3 (induced by source paper "on the optimal fronthaul compression and decoding strategies for uplink cloud radio access networks"):
  with members:
    - "fronthaul compression and transmit beamforming optimization for multi antenna uplink c ran"
    - "cloud radio access network virtualizing wireless access for dense heterogeneous systems"
    - "optimized backhaul compression for uplink cloud radio access network"
    - "short message noisy network coding with a decode forward option"
    - "uplink multicell processing with limited backhaul via per base station successive interference cancellation"
    - "an outer bound for the vector gaussian ceo problem"
    - "robust and efficient distributed compression for cloud radio access networks"
    - "wireless network information flow a deterministic approach"

Connected through hyperedge HE-4 (induced by source paper "noncoherent relaying in energy harvesting communication systems"):
  with members:
    - "resource allocation in wireless networks with rf energy harvesting and transfer"
    - "wireless powered communication opportunities and challenges"
    - "wireless powered relays in cooperative communications time switching relaying protocols and throughput analysis"
    - "energy harvesting noncoherent cooperative communications"
    - "wireless networks with rf energy harvesting a contemporary survey"
    - "power allocation strategies in energy harvesting wireless cooperative networks"
    - "simultaneous information and energy transfer in large scale networks with without relaying"
    - "cooperative energy harvesting networks with spatially random users"

Connected through hyperedge HE-5 (induced by source paper "capacity bounds for a class of interference relay channels"):
  with members:
    - "new outer bounds for the interference channel with unilateral source cooperation"
    - "mixed noisy network coding and cooperative unicasting in wireless networks"
    - "a new achievable scheme for interference relay channels"
    - "two birds and one stone gaussian interference channel with a shared out of band relay of limited rate"
    - "wireless network information flow a deterministic approach"
    - "incremental relaying for the gaussian interference channel with a degraded broadcasting relay"
    - "interference channels with source cooperation"
    - "the gaussian interference relay channel improved achievable rates and sum rate upperbounds using a potent relay"

Connected through hyperedge HE-6 (induced by source paper "capacity approximations for gaussian relay networks"):
  with members:
    - "compress and forward scheme for relay networks backword decoding and connection to bisubmodular flows"
    - "improved capacity approximations for gaussian relay networks"
    - "achieving the capacity of the n relay gaussian diamond network within log n bits"
    - "wireless network information flow a deterministic approach"
    - "computation alignment capacity approximation without noise accumulation"
    - "short message quantize forward network coding"
    - "ergodic interference alignment"
    - "compute and forward harnessing interference through structured codes"

Connected through hyperedge HE-7 (induced by source paper "half duplex relaying for the multiuser channel"):
  with members:
    - "two birds and one stone gaussian interference channel with a shared out of band relay of limited rate"
    - "wireless network information flow a deterministic approach"
    - "the gaussian interference relay channel improved achievable rates and sum rate upperbounds using a potent relay"
    - "noisy network coding"
    - "lecture notes on network information theory"
    - "multiple multicasts with the help of a relay"
    - "capacity of a class of deterministic relay channels"

Connected through hyperedge HE-8 (induced by source paper "compress and forward scheme for relay networks backword decoding and connection to bisubmodular flows"):
  with members:
    - "wireless network information flow a deterministic approach"
    - "a digital interface for gaussian relay and interference networks lifting codes from the discrete superposition model"
    - "approximately achieving gaussian relay network capacity with lattice codes"
    - "combinatiorial algorithms for wireless information flow"

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)