COMPARATIVE PERFORMANCE ANALYSIS OF PHASE DIVISION MULTIPLEXING TECHNIQUES

Year 2018, Volume: 8 Issue: 2, 151 - 159, 29.12.2018

Musa Çıbuk , Munip Geylani

https://doi.org/10.36222/ejt.498084

Abstract

The Phase
Division Multiplexing (PDM) technique developed for more efficient use of
communication resources has recently gain popularity in wireless communication
systems. The PDM technique contributes to parallel communication with the
multi-channel structure it supports. Unlike the FDM and TDM techniques, which
are frequently used in wireless communication, the PDM has two and four channel
structures and multiplexes the phase of the signal. It is thought that the
performance analyses of the proposed 2 and 4-channel structures will give the
researchers an idea of which aspects are superior and where they can be used.
In this study, phase division multiplexing structures are analysed and
comparative performance analysis are performed and the results are shared.

When PDM
structures are analysed, it is seen that 2-channel PDM-BPSK, 2-channel PDM-QPSK
and 4-channel PDM-BPSK structures have been developed. In order to compare these
structures with each other, graphical user interface has been designed by using
MATLAB program and constellation diagrams of each structure have been obtained.
Simulation studies of these three structures have been performed by using
MATLAB / Simulink program. Simulations have been run with the same system
parameters and Bit Error Rate (BER) curves have been obtained. Tolerance ranges
have been compared over constellation diagrams and bit error rate curves
obtained by simulations have been shared.

As a result
of the comparing performed in this study; the 2-channel PDM-BPSK structure is
the simplest and least energy required structure. The 4-channel PDM-BPSK
structure is advantageous with the number of channels it provides, but it needs
the most energy. The 2-channel PDM-QPSK stands out with its symbol / bit rate.
It also requires an energy value in the energy range of the other two
techniques.

Keywords

PDM-BPSK, PDM-QPSK, phase division multiplexing

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