PAPR Reduction of STBC MIMO- OFDM Systems Using Adaptive Active Constellation Extension

K Srinivasa Rao*, B. Prabhakara Rao**
* Electronics and Communication Engineering, G.V.P College of Engineering for Women, Visakhapatnam, A.P, India.
** Electronics and Communication Engineering, J.N.T University, Kakinada, A.P, India.
Periodicity:October - December'2012
DOI : https://doi.org/10.26634/jwcn.1.3.2048

Abstract

In this paper Adaptive Active Constellation (A-ACE) is analyzed for Peak to Average Power Ratio (PAPR) reduction of OFDM Systems with spectral diversity of Space time Block Coding (STBC). To support large system capacity with robustness to multipath fading, OFDM and MIMO have been combined as MIMO-OFDM. To overcome the disadvantage of low clipping ratio problem in clipping based-Active Constellation Extension (CB-ACE) technique for PAPR reduction in OFDM systems, we analyzed ACE algorithm with adaptive clipping control to STBC MIMO-OFDM systems. Simulation results demonstrate that the algorithm can reach the minimum PAPR for severely low clipping ratios, and the performance of this algorithm is superior to the performance of the ACE method in the single antenna OFDM system.

Keywords

PAPR, CCDF, STBC, MIMO-OFDM, Clipping based-Active Constellation Extension, Adaptive Active Constellation Extension.

How to Cite this Article?

Rao, K.S., and Prabakararao, B. (2012). PAPR Reduction of STBC MIMO-OFDM Systems Using Adaptive Active Constellation Extension. i-manager’s Journal on Wireless Communication Networks, 1(3), 1-7. https://doi.org/10.26634/jwcn.1.3.2048

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