Improved Least Mean Square Algorithm for 5G signals in Microwave –Photonic Link
Asish B Mathews1, G. Glan Devadhas2

1Asish B Mathews, Research Scholar, Department of Electronics and Communication Engineering, Noorul Islam Centre for Higher Education, Kanyakumari (Tamil Nadu), India.
2Dr. G. Glan Devadhas, Professor, Department of Electronics and Instrumentation Engineering, Vimal Jyoti Engineering College, Kannur (Kerala), India.

Manuscript received on 18 April 2019 | Revised Manuscript received on 25 April 2019 | Manuscript published on 30 April 2019 | PP: 442-444 | Volume-8 Issue-4, April 2019 | Retrieval Number: D6314048419/19©BEIESP
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Abstract: For the use in 5G system, common public radio interface (CPRI) is implemented for increasing the transmission capacity of conventional MFN and it exceeds hundreds of Gpbs. In this work, we proposed an improved LMS and compared it with the existing equalizers. Due to the complex nature of nonlinear effects, the nonlinearity of a signal is designed by the second order Volterra model consisting of linear and nonlinear part. By using improved LMS and Blind equalizer, the bit-error rate (BER) of the nonlinear system is diminished to a great extent. The results shows that the proposed Least mean square (LMS) and blind equalizers with constraint can decrease the inter-symbol interference (ISI) that causes nonlinearity and also helps to improve performance characteristics .
Keywords: Least Mean Square Equalizer And Blind Equalizer.

Scope of the Article: 5G Communication