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: "target detection performance of spectrum sharing mimo radars"
  Abstract: Future wireless communication systems are envisioned to share radio frequency spectrum with radars in order to meet the growing spectrum demands. In this paper, we address the problem of target detection by radars that project waveform onto the null space of interference channel in order to mitigate interference to cellular systems. We consider a multiple-input multiple-output (MIMO) radar and an MIMO cellular communication system with    $ \mathcal {K}$    base stations (BSs). We consider two spectrum sharing scenarios. In the first scenario, the degrees of freedom (DoF) available at the radar are not sufficient enough to simultaneously detect target and mitigate interference to    $ \mathcal {K}$    BSs. For this case, we select one BS among    $ \mathcal {K}$    BSs for waveform projection on the basis of guaranteeing minimum waveform degradation. For the second case, the radar has sufficient DoF to simultaneously detect target and mitigate interference to all    $ \mathcal {K}$    BSs. We study target detection capabilities of null-space projected (NSP) waveform and compare it with the orthogonal waveform. We derive the generalized likelihood ratio test for target detection and derive detector statistic for NSP and orthogonal waveform. The target detection performance for both waveforms is studied theoretically and via Monte Carlo simulations.

Connected through hyperedge HE-1 (induced by source paper "toward dual functional radar communication systems optimal waveform design"):
  with members:
    - "adaptive interference removal for uncoordinated radar communication coexistence"
    - "joint design of overlaid communication systems and pulsed radars"
    - "mu mimo communications with mimo radar from co existence to joint transmission"
    - "robust mimo beamforming for cellular and radar coexistence"
    - "interference exploitation for radar and cellular coexistence the power efficient approach"
    - "an efficient global algorithm for single group multicast beamforming"
    - "an efficient manifold algorithm for constructive interference based constant envelope precoding"
    - "optimum co design for spectrum sharing between matrix completion based mimo radars and a mimo communication system"

Connected through hyperedge HE-2 (induced by source paper "performance tradeoffs of joint radar communication networks"):
  with members:
    - "ieee 802 11ad based radar an approach to joint vehicular communication radar system"
    - "on the capacity of the awgn channel with additive radar interference"

Connected through hyperedge HE-3 (induced by source paper "interference exploitation for radar and cellular coexistence the power efficient approach"):
  with members:
    - "robust mimo beamforming for cellular and radar coexistence"
    - "coexistence analysis between radar and cellular system in los channel"
    - "optimum co design for spectrum sharing between matrix completion based mimo radars and a mimo communication system"
    - "constructive interference through symbol level precoding for multi level modulation"
    - "exploiting known interference as green signal power for downlink beamforming optimization"
    - "overlapped mimo radar waveform design for coexistence with communication systems"
    - "cooperative radar and communications signaling the estimation and information theory odd couple"
    - "on the impact of time varying interference channel on the spatial approach of spectrum sharing between s band radar and communication system"

Connected through hyperedge HE-4 (induced by source paper "mu mimo communications with mimo radar from co existence to joint transmission"):
  with members:
    - "robust mimo beamforming for cellular and radar coexistence"
    - "interference exploitation for radar and cellular coexistence the power efficient approach"
    - "coordinated multicell multicast beamforming based on manifold optimization"
    - "an efficient manifold algorithm for constructive interference based constant envelope precoding"
    - "coexistence analysis between radar and cellular system in los channel"
    - "optimum co design for spectrum sharing between matrix completion based mimo radars and a mimo communication system"
    - "manopt a matlab toolbox for optimization on manifolds"

Connected through hyperedge HE-5 (induced by source paper "robust mimo beamforming for cellular and radar coexistence"):
  with members:
    - "optimum co design for spectrum sharing between matrix completion based mimo radars and a mimo communication system"

Connected through hyperedge HE-6 (induced by source paper "coexistence analysis between radar and cellular system in los channel"):
  with members:
    - "separation of signals consisting of amplitude and instantaneous frequency rrc pulses using snr uniform training"
    - "qpsk waveform for mimo radar with spectrum sharing constraints"
    - "overlapped mimo radar waveform design for coexistence with communication systems"
    - "radar precoder design for spectral coexistence with coordinated multi point comp system"
    - "a utility proportional fairness resource allocation in spectrally radar coexistent cellular networks"
    - "on the impact of time varying interference channel on the spatial approach of spectrum sharing between s band radar and communication system"

Connected through hyperedge HE-7 (induced by source paper "network mimo with partial cooperation between radar and cellular systems"):
  with members:
    - "qpsk waveform for mimo radar with spectrum sharing constraints"
    - "on the impact of time varying interference channel on the spatial approach of spectrum sharing between s band radar and communication system"
    - "linear precoding and equalization for network mimo with partial cooperation"
    - "networked mimo with clustered linear precoding"

Connected through hyperedge HE-8 (induced by source paper "3d channel modeling between seaborne mimo radar and mimo cellular system"):
  with members:
    - "coexistence analysis between radar and cellular system in los channel"
    - "qpsk waveform for mimo radar with spectrum sharing constraints"
    - "overlapped mimo radar waveform design for coexistence with communication systems"
    - "a utility proportional fairness resource allocation in spectrally radar coexistent cellular networks"
    - "on the impact of time varying interference channel on the spatial approach of spectrum sharing between s band radar and communication system"
    - "preliminary results on 3d channel modeling from theory to standardization"

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)