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Related Experiment Video

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Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

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Intercarrier interference reduction in MC-CDMA system through second order duobinary coded phase rotated conjugate

S Chitra¹, N Kumaratharan²

¹Department of Electronics and Communication Engineering, Rajalakshmi Engineering College, Chennai, Tamil Nadu, India.

|March 20, 2015

Summary

A novel algorithm mitigates intercarrier interference (ICI) in multi-carrier code division multiple access (MC-CDMA) systems. The proposed method uses second-order duobinary coding with phase rotated conjugate cancellation (PRCC) to eliminate ICI without spectral loss.

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Area of Science:

Wireless communication systems
Signal processing

Background:

Multi-carrier code division multiple access (MC-CDMA) is a key technology for future mobile networks.
Carrier frequency offset (CFO) in multi-carrier systems causes intercarrier interference (ICI), degrading performance.
Conventional phase rotated conjugate cancellation (PRCC) reduces ICI but impacts spectral efficiency.

Purpose of the Study:

To propose a novel algorithm for mitigating intercarrier interference (ICI) in MC-CDMA systems.
To overcome the spectral efficiency limitations of conventional PRCC.
To achieve ICI mitigation without any spectral loss.

Main Methods:

A second-order duobinary coded phase rotated conjugate cancellation (PRCC) algorithm is introduced.
Correlative coding between binary symbols on adjacent subcarriers is employed.
The proposed method integrates duobinary coding with PRCC to cancel ICI.

Main Results:

The proposed method effectively reduces ICI without spectral loss.
Simulation results demonstrate improved carrier-to-interference ratio (CIR) compared to conventional conjugate cancellation (CC).
Enhanced bit error rate (BER) performance is achieved with the proposed PRCC technique.

Conclusions:

The joint second-order duobinary coding and PRCC scheme successfully mitigates ICI in MC-CDMA.
This approach offers a spectrally efficient solution for combating ICI.
The proposed method significantly enhances the performance of MC-CDMA systems.