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: "finite block length analysis of the incremental redundancy harq"
  Abstract: This letter studies the power-limited throughput of a communication system utilizing incremental redundancy (INR) hybrid automatic repeat request (HARQ). We use some recent results on the achievable rates of finite-length codes to analyze the system performance. With codewords of finite length, we derive closed-form expressions for the outage probabilities of INR HARQ and study the throughput in the cases with variable-length coding. Moreover, we evaluate the effect of feedback delay on the throughput and derive sufficient conditions for the usefulness of the HARQ protocols, in terms of power-limited throughput. The results show that, for a large range of HARQ feedback delays, the throughput is increased by finite-length coding INR HARQ, if the sub-codeword lengths are properly adapted.

Connected through hyperedge HE-1 (induced by source paper "physical layer security in the finite blocklength regime over fading channels"):
  with members:
    - "secure and energy efficient transmissions in cache enabled heterogeneous cellular networks performance analysis and optimization"
    - "a survey of physical layer security techniques for 5g wireless networks and challenges ahead"
    - "safeguarding decentralized wireless networks using full duplex jamming receivers"
    - "artificial noise aided secure transmission in large scale spectrum sharing networks"
    - "on the spectral efficiency and security enhancements of noma assisted multicast unicast streaming"
    - "finite blocklength bounds for wiretap channels"
    - "a survey on wireless security technical challenges recent advances and future trends"
    - "enhancing the physical layer security of non orthogonal multiple access in large scale networks"

Connected through hyperedge HE-2 (induced by source paper "ultra reliable communication via optimum power allocation for harq retransmission schemes"):
  with members:
    - "effective capacity and power allocation for machine type communication"
    - "low latency short packet transmissions fixed length or harq"
    - "on the effective energy efficiency of ultra reliable networks in the finite blocklength regime"
    - "ultra reliable communication via optimum power allocation for type i arq in finite block length"
    - "short packet communications over multiple antenna rayleigh fading channels"
    - "energy efficient adaptive power allocation for incremental mimo systems"
    - "green communication via type i arq finite block length analysis"
    - "ultra reliable communication in 5g wireless systems"

Connected through hyperedge HE-3 (induced by source paper "saddlepoint approximations for short packet wireless communications"):
  with members:
    - "secure short packet communications for mission critical iot applications"
    - "efficient error correcting codes in the short blocklength regime"
    - "short packet downlink transmission with non orthogonal multiple access"
    - "5g wireless network slicing for embb urllc and mmtc a communication theoretic view"
    - "short packets over block memoryless fading channels pilot assisted or noncoherent transmission"
    - "joint sum rate and error probability optimization finite blocklength analysis"
    - "coherent multiple antenna block fading channels at finite blocklength"
    - "on single antenna rayleigh block fading channels at finite blocklength"

Connected through hyperedge HE-4 (induced by source paper "on the performance of non orthogonal multiple access in the finite blocklength regime"):
  with members:
    - "on the effective energy efficiency of ultra reliable networks in the finite blocklength regime"
    - "short packet communications in non orthogonal multiple access systems"
    - "on the effective capacity of mtc networks in the finite blocklength regime"
    - "ultra reliable communication via optimum power allocation for type i arq in finite block length"
    - "non orthogonal multiple access noma in cellular uplink and downlink challenges and enabling techniques"
    - "low latency ultra reliable 5g communications finite blocklength bounds and coding schemes"
    - "ultra reliable communication in 5g wireless systems"
    - "quasi static simo fading channels at finite blocklength"

Connected through hyperedge HE-5 (induced by source paper "secure short packet communications for mission critical iot applications"):
  with members:
    - "short packet downlink transmission with non orthogonal multiple access"
    - "wiretap channels nonasymptotic fundamental limits"
    - "joint sum rate and error probability optimization finite blocklength analysis"
    - "finite blocklength bounds for wiretap channels"
    - "massive machine type communications in 5g physical and mac layer solutions"
    - "principles of physical layer security in multiuser wireless networks a survey"
    - "ultra reliable communication in 5g wireless systems"
    - "non asymptotic output statistics of random binning and its applications"

Connected through hyperedge HE-6 (induced by source paper "fast harq over finite blocklength codes a technique for low latency reliable communication"):
  with members:
    - "mimo channel modeling and capacity analysis for 5g millimeter wave wireless systems"
    - "modelling decoding errors in harq"
    - "green communication via power optimized harq protocols"
    - "green communication via type i arq finite block length analysis"
    - "a tight upper bound for the third order asymptotics for most discrete memoryless channels"
    - "millimeter wave channel modeling and cellular capacity evaluation"
    - "on the benefits of partial channel state information for repetition protocols in block fading channels"
    - "performance of hybrid arq in block fading channels a fixed outage probability analysis"

Connected through hyperedge HE-7 (induced by source paper "finite blocklength analysis of multiple access channels with without cooperation"):
  with members:
    - "ultra reliable short packet communications half duplex or full duplex relaying"
    - "finite blocklength bounds for wiretap channels"
    - "relay assisted multiple access with full duplex multi packet reception"
    - "the third order term in the normal approximation for the awgn channel"
    - "quasi static multiple antenna fading channels at finite blocklength"
    - "one shot capacity of discrete channels"

Connected through hyperedge HE-8 (induced by source paper "dynamic harq with guaranteed delay"):
  with members:
    - "fast harq over finite blocklength codes a technique for low latency reliable communication"
    - "low latency short packet transmissions fixed length or harq"
    - "ultra reliable and low latency wireless communication tail risk and scale"
    - "ultra reliable low latency cellular networks use cases challenges and approaches"
    - "harq buffer management an information theoretic view"
    - "coding versus arq in fading channels how reliable should the phy be"

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)