Inter-Signal Interference Cancellation Filter for Four-Element Single Sideband Modulation

2012 ◽  
Author(s):  
Yi Jiang ◽  
Zhenyu Zhou ◽  
Masahiko Nanri ◽  
Gen-Ichiro Ohta ◽  
Takuro Sato
Keyword(s):  
Interference Cancellation ◽  
Signal Interference ◽  
Single Sideband ◽  
Single Sideband Modulation

scholarly journals Effective Data Transmission and Control Based on Social Communication in Social Opportunistic Complex Networks

Complexity ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-20 ◽  
Author(s):  
Weiyu Yang ◽  
Jia Wu ◽  
Jingwen Luo
Keyword(s):  
Complex Networks ◽  
Information Transmission ◽  
Interference Cancellation ◽  
Propagation Delay ◽  
Transmission Efficiency ◽  
Successive Interference Cancellation ◽  
Time Slice ◽  
Signal Interference ◽  
Time Signal ◽  
Interference Avoidance

In opportunistic complex networks, information transmission between nodes is inevitable through broadcast. The purpose of broadcasting is to distribute data from source nodes to all nodes in the network. In opportunistic complex networks, it is mainly used for routing discovery and releasing important notifications. However, when a large number of nodes in the opportunistic complex networks are transmitting information at the same time, signal interference will inevitably occur. Therefore, we propose a low-latency broadcast algorithm for opportunistic complex networks based on successive interference cancellation techniques to improve propagation delay. With this kind of algorithm, when the social network is broadcasting, this algorithm analyzes whether the conditions for successive interference cancellation are satisfied between the broadcast links on the assigned transmission time slice. If the conditions are met, they are scheduled at the same time slice, and interference avoidance scheduling is performed when conditions are not met. Through comparison experiments with other classic algorithms of opportunistic complex networks, this method has outstanding performance in reducing energy consumption and improving information transmission efficiency.

scholarly journals Reversible Quantum Interface for Tunable Single-Sideband Modulation

2008 ◽  
Vol 101 (13) ◽  
Author(s):  
J. Cviklinski ◽  
J. Ortalo ◽  
J. Laurat ◽  
A. Bramati ◽  
M. Pinard ◽  
...  
Keyword(s):  
Single Sideband ◽  
Single Sideband Modulation ◽  
Quantum Interface

scholarly journals Pilot-assisted intradyne reception for high-speed continuous-variable quantum key distribution with true local oscillator

Quantum ◽  
2019 ◽  
Vol 3 ◽  
pp. 193 ◽  
Author(s):  
Fabian Laudenbach ◽  
Bernhard Schrenk ◽  
Christoph Pacher ◽  
Michael Hentschel ◽  
Chi-Hang Fred Fung ◽  
...  
Keyword(s):  
Quantum Key Distribution ◽  
High Speed ◽  
Local Oscillator ◽  
Continuous Variable ◽  
Excess Noise ◽  
Phase Matching ◽  
Optical Frequency ◽  
Single Sideband ◽  
Single Sideband Modulation ◽  
Optical Single Sideband

We present a pilot-assisted coherent intradyne reception methodology for CV-QKD with true local oscillator. An optically phase-locked reference tone, prepared using carrier-suppressed optical single-sideband modulation, is multiplexed in polarisation and frequency to the 250 Mbaud quantum signal in order to provide optical frequency- and phase matching between quantum signal and local oscillator. Our concept allows for high symbol rates and can be operated at an extremely low excess-noise level, as validated by experimental measurements.

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