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PAPR reduction algorithms exist in the literature, are often effective for specific scenarios. The proposed adaptive mode PAPR reduction algorithm chooses the mode best suited for different transmission conditions in order to achieve a substantial reduction in PAPR for most scenarios which is essential in Cognitive radio. It was proposed in our previous paper that linear combination can be combined...
For getting satisfactory error rate performance, channel estimation is required at receiver. Maximum likelihood (ML) estimation method is preferred due to its low complexity. The conventional ML estimation for sparse multipath channels requires a large number of pilot symbols and thus increases the spectral inefficiency. This paper investigates an efficient way to apply pilot aided ML estimation technique...
In this paper we are introduced newly but powerful and less noisy peak to average power reduction techniques for Orthogonal Frequency Division Multiplexing (OFDM). These two techniques are comparing and show its results. One investigated technique is Threshold selected mapping (TSLM).In this scheme the transmitted signal is minimum PAPR by thresholding a selected signal from a set of signals and the...
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