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手机网投平台

软硬件

概观

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Software tools include VPI, OPNET Modeller with wireless suite and System Level LTE simulator in MATLAB/C.

软件设施

OPNET

Full research license of OPNET modeller with LTE suite for the development of:

  • DBA MAC protocols for GPONs and XGPONs
  • Developments of green networks
  • TWDM-PON protocol and algorithms
  • System level simulation of wireless (LTE) networks and convergence with optics for IP backhauling investigations
  • OFDMA-PON protocol developments

VPI:

VPI transmission maker Optical Systems, Optical Amplifiers and Photonic Circuits for modelling of:

  • Link-level simulations (e.g. RoF and CPRI) of optical and wireless convergence
  • TDM / WDM集成
  • Photonic systems for short-range, access, metro and long haul optical transmission systems
  • Evaluation and testing of multiplexing formats such as OFDMA
  • Advance transmission techniques
  • Cosimulation with MATLAB and C for development of customised components and systems

MATLAB:

  • System level model of LTE and LTE-A networks with coordinated transmission
  • Simulation of up to 19 cells networks with up to 30 UEs per sector
  • Wrap-around simulation technique for smaller cells also possible
  • Typical transmission modes of the LTE supported (i.e. CLSM, OLSM and TxD)
  • The model allows development of novel scheduling algorithms
  • Appropriate interference modelling at the cell edges for effective CoMP simulations

硬件设施

A highlight of the available components and systems is provided below:

  • FPGA evaluation boards with Xilinx Virtex-6 chips for system-on-chip design
  • 2.5 and 1 GS/s  ADCs and DACs for producing up to 10 Gbps data rates with complex transmission formats such as OFDMA
  • Developments of digital signal processing for OFDMA-PONs, complex QAM constellation diagrams for elastic PONs and other complex high speed transmission techniques
  • Embedded system design for uploading layer-2 codes on the software defined hardware
  • Analog front-end circuits with high bandwidth IQ-mixers, that provide an interface to the FPGA boards, enable transmission of high data rates
  • Real-time validation setups
  • Video servers and clients for full HD streaming
  • Multi-channel LTE waveform generator and analyser with RF frequency between 125 MHz-6 GHz
  • LTE RoF testbed for access and long reach networks
  • PON distribution with maximum of 84 km span and 32 split
  • 12.5 Gbps BERT set for access and long reach PON evaluation
  • Optical amplifiers (EDFAs and SOAs) for long reach networks and pre-amplification
  • Long wavelength, low cost lasers such as VCSELs