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We propose a coded N-dimensional pulse-amplitude modulation (ND-PAM) suitable for ultra-high-speed serial optical transport. The polarization-multiplexed-ND-PAM significantly outperforms corresponding polarization-multiplexed-QAM counterpart in terms of OSNR sensitivity (>; 4 dB at symbol rate 31.25 GS/s), while enabling beyond 400 Gb/s transmission.
The first experimental demonstration of nonbinary-LDPC-coded optical transmission is presented. Using DQPSK, we can achieve >;8dB and ~10dB net coding gains at the BER of 10-6 in the absence and presence of I/Q imbalance, respectively.
We propose a coded polarization-multiplexed iterative polar modulation (PM-IPM) as an enabling coded-modulation scheme for beyond 400 Gb/s serial optical transmission. We demonstrate that the proposed scheme can achieve 400 Gb/s optical transmission over 2250 km (for M = 3D16).
We propose a variable-power rate-adaptive LDPC-coded OFDM scheme, suitable for use in radio-over-fiber technologies. The optimum power-rate adaptation is used to compensate for limited bandwidth of graded-index plastic-optical-fiber, while wireless receiver diversity is used to overcome the multipath fading.
This paper proposes a power management mechanism, via cross-layer design over application/presentation, data- link, and physical layers, for power-limited receivers in a multimedia streaming system such as the digital audio/video broadcasting system. In the transmitter, fine grain scalable source coding is utilized in the application/presentation layer to produce a bitstream of video frames that are...
Orthogonal frequency division multiplexing (OFDM) is a technique that provides high data rate communications, but it is sensitive to the carrier frequency offset (CFO) caused by the misalignment in carrier frequencies between transmitter and receiver, which results in Inter-Carrier Interference (ICI) among the sub-carriers and degrades the Carrier-to-Interference Ratio (CIR). In this paper, we propose...
We present two PMD compensation schemes suitable for use in multilevel block-coded modulation schemes with coherent detection: (i) Bell Laboratories layered space-time architecture (BLAST)-type polarization-interference cancellation scheme, and (ii) iterative polarization cancellation scheme.
We present a PMD compensation scheme suitable for use in multilevel coded-modulation schemes, with PMD compensation efficiency comparable to that of OFDM, but with lower complexity of both transmitter and receiver. It is based on Alamouti-type polarization-time coding, with LDPC codes as channel codes.
The coded modulation schemes enabling 100+ Gb/s transmission by using commercially available components operating at 40 Giga symbols/s have been proposed and discussed in this paper. We considered bit-interleaved coded modulation (BICM) in combination with the low-density parity-check (LDPC) codes that are used as component codes, and in combination with coherent detection scheme. It was shown that...
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