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We propose and demonstrate a 2 × 2 multiple-input multiple-output (MIMO) wireless over fiber transmission system. Seamless translation of two orthogonal frequency division multiplexing (OFDM) signals on dual optical polarization states into wireless MIMO transmission at 795.5 Mbit/s net data rate is enabled by using digital training-based channel estimation. A net spectral efficiency of 2.55 bit/s/Hz...
We experimentally demonstrate a 5-Gb/s fiber-wireless transmission system combining optical polarization-division-multiplexing (PDM) and wireless multiple-input, multiple-output (MIMO) spatial multiplexing technologies. The optical-wireless channel throughput is enhanced by achieving a 4b/s/Hz spectral efficiency. Based on the implementation of constant modulus algorithm (CMA), the 2×2 MIMO wireless...
We experimentally demonstrated a polarization multiplexed (PolMux) RoF system with a 2×2 MIMO wireless link using constant modulus algorithm (CMA) channel estimation. 4 bit/s/Hz spectral efficiency and CMA-enabled 2 dB receiver sensitivity improvement were achieved.
Based on time varying linear transformation (TVLT), a novel encrypting mechanism for multi-input multi-output (MIMO) communication system is proposed in this paper. Without exhaustive checks through computer search for the proper space-time codes, a coded MIMO system can simply achieve full diversity through TVLT. Combined with the LDPC code, TVLT also provides the full diversity gain and higher coding...
A novel low-density parity-check (LDPC) coded multi-input multi-output (MIMO) communication system with time varying linear transformation (TVLT) is proposed in this paper. Combined with the outstanding distance property of LDPC codes, TVLT can provide full diversity and maximum coding gain at the same time without exhaustive search for the good space-time codes as usual. To satisfy the demand of...
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