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 "relay pair selection in buffer aided successive opportunistic relaying using a multi antenna source"):
  Abstract: We study a cooperative network with a buffer-aided multi-antenna source, multiple half-duplex (HD) buffer-aided relays and a single destination. Such a setup could represent a cellular downlink scenario, in which the source can be a more powerful wireless device with a buffer and multiple antennas, while a set of intermediate less powerful devices are used as relays to reach the destination. The main target is to recover the multiplexing loss of the network by having the source and a relay to simultaneously transmit their information to another relay and the destination, respectively. Successive transmissions in such a cooperative network, however, cause inter-relay interference (IRI). First, by assuming global channel state information (CSI), we show that the detrimental effect of IRI can be alleviated by precoding at the source, mitigating or even fully cancelling the interference. A cooperative relaying policy is proposed that employs a joint precoding design and relay-pair selection. Note that both fixed rate and adaptive rate transmissions can be considered. For the case when channel state information is only available at the receiver side (CSIR), we propose a relay selection policy that employs a phase alignment technique to reduce the IRI. The performance of the two proposed relay pair selection policies are evaluated and compared with other state-of-the-art relaying schemes in terms of outage and throughput. The results show that the use of a powerful source can provide considerable performance improvements.

Includes members:
  Member "decoupled uplink and downlink in a wireless system with buffer aided relaying":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "relay pair selection with source precoding in buffer aided successive opportunistic relaying")
  Member "virtual full duplex buffer aided relaying in the presence of inter relay interference":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "study of switched max link relay selection for cooperative multiple antenna systems")
  Member "a buffer aided successive opportunistic relay selection scheme with power adaptation and inter relay interference cancellation for cooperative diversity systems":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "wireless network level partial relay cooperation a stable throughput analysis")
  Member "selective cooperative relaying over time varying channels":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "relay pair selection with source precoding in buffer aided successive opportunistic relaying")
  Member "superposition coded concurrent decode and forward relaying":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "relay pair selection with source precoding in buffer aided successive opportunistic relaying")
  Member "recovering multiplexing loss through successive relaying using repetition coding":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "alternate distributed beamforming for decode and forward multi relay systems using buffers")
  Member "a simple cooperative diversity method based on network path selection":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "dynwalks global topology and recent changes awareness dynamic network embedding")
  Member "towards the optimal amplify and forward cooperative diversity scheme":
    also connected through other hyperedges:
      - Hyperedge HE-8 (induced by source paper "relay pair selection with source precoding in buffer aided successive opportunistic relaying")

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)