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: "cross layer optimization for ultra reliable and low latency radio access networks"
  Abstract: In this paper, we propose a framework for cross-layer optimization to ensure ultra-high reliability and ultra-low latency in radio access networks, where both transmission delay and queueing delay are considered. With short transmission time, the blocklength of channel codes is finite, and the Shannon Capacity cannot be used to characterize the maximal achievable rate with given transmission error probability. With randomly arrived packets, some packets may violate the queueing delay. Moreover, since the queueing delay is shorter than the channel coherence time in typical scenarios, the required transmit power to guarantee the queueing delay and transmission error probability will become unbounded even with spatial diversity. To ensure the required quality-of-service (QoS) with finite transmit power, a proactive packet dropping mechanism is introduced. Then, the overall packet loss probability includes transmission error probability, queueing delay violation probability, and packet dropping probability. We optimize the packet dropping policy, power allocation policy, and bandwidth allocation policy to minimize the transmit power under the QoS constraint. The optimal solution is obtained, which depends on both channel and queue state information. Simulation and numerical results validate our analysis, and show that setting packet loss probabilities equal is a near optimal solution.

Connected through hyperedge HE-1 (induced by source paper "robust urllc packet scheduling of ofdm systems"):
  with members:
    - "ultrareliable and low latency communication techniques for tactile internet services"
    - "a vision of 6g wireless systems applications trends technologies and open research problems"
    - "resource allocation for multi user downlink urllc ofdma systems"
    - "resource allocation and harq optimization for urllc traffic in 5g wireless networks"
    - "short packet downlink transmission with non orthogonal multiple access"
    - "energy efficient packet scheduling with finite blocklength codes convexity analysis and efficient algorithms"
    - "coordinated beamforming for multiuser miso interference channel under rate outage constraints"
    - "quasi static multiple antenna fading channels at finite blocklength"

Connected through hyperedge HE-2 (induced by source paper "scheduling observers over a shared channel with hard delivery deadlines"):
  with members:
    - "self driving cars a survey"
    - "resource allocation and harq optimization for urllc traffic in 5g wireless networks"
    - "5g wireless network slicing for embb urllc and mmtc a communication theoretic view"
    - "joint uplink and downlink resource configuration for ultra reliable and low latency communications"
    - "a randomized greedy algorithm for near optimal sensor scheduling in large scale sensor networks"
    - "joint scheduling of urllc and embb traffic in 5g wireless networks"

Connected through hyperedge HE-3 (induced by source paper "transmission delay minimization in wireless powered communication systems"):
  with members:
    - "power allocation and effective capacity of af successive relays"
    - "optimization and analysis of wireless powered multi antenna cooperative systems"
    - "wireless powered dual hop multi antenna relaying systems impact of csi and antenna correlation"
    - "effective capacity of receive antenna selection mimo ostbc systems in co channel interference"
    - "wireless charging technologies fundamentals standards and network applications"
    - "wireless powered communication networks an overview"
    - "some new research trends in wirelessly powered communications"
    - "wireless powered communication opportunities and challenges"

Connected through hyperedge HE-4 (induced by source paper "twin timescale radio resource management for ultra reliable and low latency vehicular networks"):
  with members:
    - "on low resolution adcs in practical 5g millimeter wave massive mimo systems"
    - "fractional programming for communication systems part i power control and beamforming"
    - "physical layer authentication in mission critical mtc networks a security and delay performance analysis"
    - "a two stage allocation scheme for delay sensitive services in dense vehicular networks"
    - "low latency millimeter wave communications traffic dispersion or network densification"
    - "on the feasibility of wireless energy transfer using massive antenna arrays"
    - "blocklength limited performance of relaying under quasi static rayleigh channels"
    - "reliable and efficient autonomous driving the need for heterogeneous vehicular networks"

Connected through hyperedge HE-5 (induced by source paper "ultra reliable and low latency communications using proactive multi cell association"):
  with members:
    - "wireless channel dynamics and robustness for ultra reliable low latency communications"
    - "resource allocation and harq optimization for urllc traffic in 5g wireless networks"
    - "reliable transmission of short packets through queues and noisy channels under latency and peak age violation guarantees"
    - "energy latency tradeoff in ultra reliable low latency communication with retransmissions"
    - "joint uplink and downlink resource configuration for ultra reliable and low latency communications"
    - "a statistical learning approach to ultra reliable low latency communication"
    - "heterogeneous networks with power domain noma coverage throughput and power allocation analysis"
    - "fundamentals of the downlink green coverage and energy efficiency in heterogeneous networks"

Connected through hyperedge HE-6 (induced by source paper "resource allocation for multi user downlink miso ofdma urllc systems"):
  with members:
    - "resource allocation for multi user downlink urllc ofdma systems"
    - "energy latency tradeoff in ultra reliable low latency communication with retransmissions"
    - "robust and secure resource allocation for full duplex miso multicarrier noma systems"
    - "joint sum rate and error probability optimization finite blocklength analysis"
    - "coding in the finite blocklength regime bounds based on laplace integrals and their asymptotic approximations"
    - "optimal joint power and subcarrier allocation for full duplex multicarrier non orthogonal multiple access systems"
    - "energy efficient packet scheduling with finite blocklength codes convexity analysis and efficient algorithms"
    - "ultra reliable communication in 5g wireless systems"

Connected through hyperedge HE-7 (induced by source paper "learning to optimize with unsupervised learning training deep neural networks for urllc"):
  with members:
    - "learning to optimize training deep neural networks for interference management"
    - "realizing the tactile internet haptic communications over next generation 5g cellular networks"
    - "quasi static multiple antenna fading channels at finite blocklength"

Connected through hyperedge HE-8 (induced by source paper "improving network availability of ultra reliable and low latency communications with multi connectivity"):
  with members:
    - "joint uplink and downlink resource configuration for ultra reliable and low latency communications"
    - "ultra reliable short packet communications half duplex or full duplex relaying"
    - "blocklength limited performance of relaying under quasi static rayleigh channels"
    - "sinr model with best server association for high availability studies of wireless networks"
    - "finite block length analysis of the incremental redundancy harq"

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)