Optimization Technique of OFDM Used in SCADA System
Aziz Ahmad1, Gourav Sharma2, Sohan Lal3

1Aziz Ahmad, Department of EEE, Alflah Engineering, Faridabad (Haryana), India.
2Gourav Sharma, Student, Department of EEE, Alflah Engineering, Faridabad (Haryana), India.
3Sohan Lal, Department of EEE, International Institute of Engineering, Kurukshetra (Haryana), India.
Manuscript received on 15 April 2013 | Revised Manuscript received on 22 April 2013 | Manuscript Published on 30 April 2013 | PP: 168-171 | Volume-2 Issue-5, April 2013 | Retrieval Number: E0707042413/13©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: SCADA is designed to automate various systems like process industry, power grid etc. SCADA consist of master station (MS) and a number of remote terminal units (RTU). RTUs are connected to Master Station via communication channels. Communication channel limits the speed of data acquisition and control. To send many data from RTUs to Master Station multiplexing technique like Orthogonal Frequency Division Multiplexing (OFDM) can be used. OFDM has been focused on high-data-rate wireless communication. But high Peak-to-average power is one of the main obstacles to limit wide applications. Here a technique of reducing PAPR is presented. This technique is Selective Mapping (SLM) using standard array.
Keywords: SCADA, RTU, MS, OFDM, SLM.

Scope of the Article: Cross-Layer Optimization