Experimental demonstration of single-sideband, four-level pulse amplitude modulation/direct-detection degenerate mode-division multiplexing transmission based on multiple-input, multiple-output nonlinear equalizer

2020 ◽  
Vol 59 (7) ◽  
pp. 1817
Author(s):  
Xiang Gao ◽  
Bo Xu ◽  
Pan Wu ◽  
Yuancheng Cai ◽  
Kun Qiu
Keyword(s):  
Amplitude Modulation ◽  
Direct Detection ◽  
Multiple Input Multiple Output ◽  
Pulse Amplitude ◽  
Pulse Amplitude Modulation ◽  
Experimental Demonstration ◽  
Mode Division Multiplexing ◽  
Single Sideband ◽  
Multiple Input ◽  
Input Multiple Output

MIMO DS-BPAM UWB SYSTEM WITH SRAKE RECEIVER OVER MULTIPATH FADING CHANNELS

2009 ◽  
Vol 18 (06) ◽  
pp. 1075-1080
Author(s):  
ZHIQUAN BAI ◽  
YUANQUAN XU ◽  
XIAOTONG LI ◽  
RONGKAI LI ◽  
DONGFENG YUAN ◽  
...  
Keyword(s):  
Fading Channels ◽  
Multiple Input Multiple Output ◽  
Pulse Amplitude ◽  
Multipath Fading ◽  
Block Codes ◽  
Ultra Wideband ◽  
Multipath Fading Channels ◽  
Space Time Block Codes ◽  
Multiple Input ◽  
Input Multiple Output

In this paper, we investigate the multiple input multiple output (MIMO) direct sequence bipolar pulse amplitude modulation (DS-BPAM) ultra wideband (UWB) system over indoor multipath fading channels based on the research of Alamouti space-time block codes (STBC) and DS-BPAM UWB system. Selective Rake (SRake) receiver is employed in this paper in order to deal with the multipath effects. Theoretical bit error probability of the MIMO DS-BPAM UWB system with SRake receiver is derived. Simulation results of the MIMO DS-BPAM UWB system with SRake receiver and conventional coherent receiver over multipath fading channels are provided. The results show the efficiency of the MIMO DS-BPAM UWB system with SRake receiver.

Bipolar pulse amplitude modulation with direct detection

2019 ◽  
Author(s):  
M. Secondini ◽  
E. Forestieri ◽  
F. Fresi ◽  
L. Potì ◽  
T. Catuogno ◽  
...  
Keyword(s):  
Amplitude Modulation ◽  
Direct Detection ◽  
Pulse Amplitude ◽  
Pulse Amplitude Modulation ◽  
Bipolar Pulse

Performance of 16QAM on UV Communication

2013 ◽  
Vol 475-476 ◽  
pp. 863-866
Author(s):  
Rui Zhu ◽  
Da Hai Han
Keyword(s):  
Wireless Communication ◽  
Bit Error Rate ◽  
Error Rate ◽  
Amplitude Modulation ◽  
Multiple Input Multiple Output ◽  
Modulation Method ◽  
Multiple Input ◽  
Communication Environments ◽  
Input Multiple Output ◽  
Mimo Technology

Explorations on ultraviolet (UV) communication field are relatively little among wireless communication for lacking of suitable simulation equipments. Possible mode was investigated on UV by combining mature coding techniques with gradually improved multiple-input multiple-output (MIMO) technology. A candidate modulation method, the 16-ary quadrature-amplitude modulation (16QAM), was analyzed for UV communication using MIMO technology. Comparisons between 16QAM and OOK were presented to better depict characteristics of 16QAM through simulation. The result shows that under specific bit error rate (BER) requirements for most communication environments, 16QAM can help save transmitting power and enlarges transmission capacity.

Direct Detection of Bipolar Pulse Amplitude Modulation

2020 ◽  
Vol 38 (21) ◽  
pp. 5981-5990
Author(s):  
Marco Secondini ◽  
Enrico Forestieri
Keyword(s):  
Amplitude Modulation ◽  
Direct Detection ◽  
Pulse Amplitude ◽  
Pulse Amplitude Modulation ◽  
Bipolar Pulse

scholarly journals Experimental Study on 25 Gbps C-Band PON over up to 25 km SMF Using a 10G-Class DML + APD IM-DD System

Photonics ◽  
2021 ◽  
Vol 8 (8) ◽  
pp. 328
Author(s):  
Haoyi Wang ◽  
Pablo Torres-Ferrera ◽  
Valter Ferrero ◽  
Roberto Gaudino
Keyword(s):  
Amplitude Modulation ◽  
Direct Detection ◽  
Chromatic Dispersion ◽  
Optical Network ◽  
Single Mode ◽  
Pulse Amplitude ◽  
Single Mode Fiber ◽  
Passive Optical Network ◽  
Pulse Amplitude Modulation ◽  
Modulation Formats

In this paper we present an experimental analysis of several modulation formats (pulse amplitude modulation (PAM-2), quaternary pulse amplitude modulation (PAM-4) and electrical duobinary (EDB)) for passive optical network (PON) applications at 25 Gbps bit rate in a C-band 10G-class directly modulated lasers (DML) and avalanche photodiode (APD) intensity modulation and direct detection (IM-DD) system over a single mode fiber (SMF) of up to 25 km, optimizing DML operations and demonstrating that PAM-2 is a promising choice. We also theoretically and experimentally analyzed the channel frequency response of DML and SMF affected by DML chirp and SMF chromatic dispersion.

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