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Adaptive Modulation and Coding for Mobile-WiMAX Us
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In this paper we are going to discuss
about the WiMAX implementation. WiMAX is
nothing but wireless transmission standard.
When the communication is made to happen, the data gets corrupted in the
channel depending upon the SNR introduced by the channel. The WiMAX makes use
of the multiple transmission technique called OFDM. Here our intention is to
make the reduced BER even for very highly noisy environment (Very low SNR) and
increase the data transfer rate. In order to obtain a very good BER, we are
employing the Convolutional encoding and Viterbi decoding based error detection
and correction. And to increase the throughput, we are employing the Adaptive Modulation
techniques in the modulation part of the Orthogonal Frequency Division Multiplexing
(OFDM). The comparative study of the throughput and BER with respect to BER and
modulation techniques is analyzed and studied.
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Comparative Study between Several Direction of Arr
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In this paper a comparative study, restricted to
one-dimensional stationary case, between several Direction of
Arrival (DOA) estimation algorithms of narrowband signals is
presented. The informative signals are corrupted by an Addi-
tive White Gaussian Noise (AWGN), to show the performance
of each method by applying directly the algorithms without
pre-processing techniques such as forward-backward averag-
ing or spatial smoothing.
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