human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "joint relay and jammer selection for secure two way relay networks"):
  Abstract: In this paper, we investigate joint relay and jammer selection in two-way cooperative networks, consisting of two sources, a number of intermediate nodes, and one eavesdropper, with the constraints of physical layer security. Specifically, the proposed algorithms select two or three intermediate nodes to enhance security against the malicious eavesdropper. The first selected node operates in the conventional relay mode and assists the sources to deliver their data to the corresponding destinations using an amplify-and-forward protocol. The second and third nodes are used in different communication phases as jammers in order to create intentional interference upon the eavesdropper node. Firstly, we find that in a topology where the intermediate nodes are randomly and sparsely distributed, the proposed schemes with cooperative jamming outperform the conventional non-jamming schemes within a certain transmitted power regime. We also find that, in the scenario in which the intermediate nodes gather as a close cluster, the jamming schemes may be less effective than their non-jamming counterparts. Therefore, we introduce a hybrid scheme to switch between jamming and non-jamming modes. Simulation results validate our theoretical analysis and show that the hybrid switching scheme further improves the secrecy rate.

Includes members:
  Member "differential modulation for bi directional relaying with analog network coding":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "performance analysis of adaptive physical layer network coding for wireless two way relaying")
  Member "cooperative secret communication with artificial noise in symmetric interference channel":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "improving wireless physical layer security via exploiting co channel interference")
  Member "the role of feedback in two way secure communications":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "learning an adversary s actions for secret communication")
  Member "secrecy in cooperative relay broadcast channels":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "broadcast channels with privacy leakage constraints")
  Member "achievable rates for two way wire tap channels":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "the two way wiretap channel achievable regions and experimental results")
  Member "achievable rates for the general gaussian multiple access wire tap channel with collective secrecy":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "on the secure degrees of freedom of the k user mac and 2 user interference channels")
  Member "the relay eavesdropper channel cooperation for secrecy":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "a secure communication game with a relay helping the eavesdropper")

Question: Please tell me which class the source paper 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)