Three-dimensional mamsk-cap photon access method
An access method and three-dimensional technology, applied in the field of optical communication, can solve the problem of low spectrum utilization, and achieve the effects of improving system spectrum efficiency, resisting nonlinear damage, and improving bit error rate performance.
Active Publication Date: 2022-05-27
NANJING UNIV OF INFORMATION SCI & TECH
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[0004] In order to improve the problem that multi-dimensional CAP requires more bandwidth upsampling factors to maintain filter orthogonality and cause low spectrum utilization, the present invention proposes a three-dimensional MAMSK-CAP photon access method, which is used in traditional multi-dimensional CAP The transmission spectrum is improved
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[0029] In order to make the objectives, technical solutions and advantages of the method more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and examples of implementation. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0030] Embodiments of the present invention will be described below with reference to the accompanying drawings.
[0031] like figure 1 As shown, the present invention provides a three-dimensional MAMSK-CAP photonic access method, which specifically includes the following steps:
[0032] Step 1. Divide the input original data into three parts after serial-parallel transformation and map them respectively to form three MSK signals with different amplitude values, which can be specifically expressed as:
[0033]
[0034] where A is the amplitude, ω c =2πf c represe...
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The invention discloses a three-dimensional MAMSK-CAP photon access method, which belongs to the field of optical communication technology, and includes: dividing the input original data into three parts after serial-parallel changes, and mapping them respectively to form three MSKs with different amplitude values Signal; three MSK signals with different amplitude values are superimposed on three MAMSK signals respectively, and the amplitude values of the three MSK signals are adjusted by an adaptive algorithm under the condition of optimal modulation ratio to generate three MAMSK signals; the generated three After the MAMSK signals are up-sampled and filtered by three mutually orthogonal filters, they are added and synthesized by an adder to obtain an output signal, which is the generated three-dimensional MAMSK-CAP signal. Compared with phase shift keying PSK, the present invention has higher spectral efficiency, increases the orthogonality of MAMSK signal, realizes better bit error rate performance, and realizes higher multiplexing efficiency and higher efficiency while improving traditional CAP bit error rate. Complementary advantages of multi-dimensional flexibility.
Description
technical field [0001] The invention relates to a three-dimensional MAMSK-CAP photonic access method, and belongs to the technical field of optical communication. Background technique [0002] In recent years, driven by the Internet of Things technology and high-definition video services, the information industry has developed vigorously, and the demand for data communication inside and outside the data center and between high-performance computers has grown rapidly. At the same time, with the continuous transition from the current "Internet of Information" to the "Internet of Things", where billions of smart devices will continuously exchange information, machine-to-machine traffic is expected to grow at a faster rate, It may soon surpass human-generated data traffic. In order to meet the urgent demand for current bandwidth, optical interconnects with large capacity, low power consumption, and low complexity are required. Advanced modulation formats such as Pulse Amplitud...
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IPC IPC(8): H04B10/556
CPCH04B10/556H04B10/5563H04B10/5561
Inventor 刘博忻向军任建新毛雅亚张靖怡王瑞春沈磊王光全吴泳锋孙婷婷赵立龙
Owner NANJING UNIV OF INFORMATION SCI & TECH