Improvement of wireless transmission system performance for EEG signals based on development of scalar quantization
, and | Dec 28, 2013
About this article
Article Category: Articles
Published Online: Dec 28, 2013
Page range: 62 - 72
Received: Nov 19, 2012
DOI: https://doi.org/10.5617/jeb.437
Keywords
© 2013 Mohsen Habib Nezhad, Khazaimatol S. Subari, Mehran Yahyavi, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
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The comparison among calculated MSQE of proposed methods and uniform quantizer.
| Bits per sample | Uniform Quantizer (MSQE) | BGAI Quantizer MSQE | BUAI Quantizer MSQE |
|---|---|---|---|
| 5 | -104.29 dB | -109.86 dB | -118.64 dB |
| -110.44 dB | -118.26 dB | -124.98 dB | |
| -116.61 dB | -125.68 dB | -131.14 dB | |
| -122.62 dB | -131.69 dB | -137.21 dB | |
| -128.65 dB | -136.39 dB | -143.28 dB | |
| -134.66 dB | -142.84 dB | -149.28 dB | |
| -140.72 dB | -149.19 dB | -155.24 dB | |
| -146.70 dB | -155.67 dB | -161.22 dB | |
| -152.76 dB | -160.95 dB | -167.27 dB | |
| -158.73 dB | -166.65 dB | -173.32 dB | |
| -164.78 dB | -172.85 dB | -179.37 dB | |
| -170.79 dB | -185.00 dB | -185.42 dB | |
| -176.80 dB | -194.03 dB | -191.47 dB | |
| -182.87 dB | -200.19 dB | -197.55 dB | |
| -188.90 dB | -206.25 dB | -203.49 dB | |
| -194.88 dB | -212.12 dB | -209.48 dB |
The transmission range for different amount of λ.
| Bits per sample | Transm. range | Transm. range | Transm. range | Transm. range | Transm. range |
|---|---|---|---|---|---|
| 5 | 0.95 m | 8.62 m | 34.48 m | 77.58 m | 137.92 m |
| 1.98 m | 17.90 m | 71.6 m | 161.11 m | 286.4 m | |
| 4.04 m | 36.39 m | 145.56 m | 327.51 m | 582.24 m | |
| 8.15 m | 73.19 m | 292.76 m | 658.71 m | 1171.04 m | |
| 16.37 m | 147.40 m | 589.6 m | 1326.6 m | 2358.4 m | |
| 31.31 m | 281.83 m | 1127.32 m | 2536.47 m | 4509.12 m |
The comparison among calculated SNR of the proposed methods and a uniform quantizer.
| Bits per sample | Uniform Quantizer (SNR) | BGAI Quantizer (SNR) | BUAI Quantizer (SNR) |
|---|---|---|---|
| 28.38 dB | 33.95 dB | 42.72 dB | |
| 34.52 dB | 42.34 dB | 49.06 dB | |
| 40.69 dB | 49.77 dB | 55.22 dB | |
| 46.70 dB | 55.77 dB | 61.29 dB | |
| 52.73 dB | 60.47 dB | 67.37 dB | |
| 58.74 dB | 66.92 dB | 73.37 dB | |
| 64.80 dB | 73.28 dB | 79.33 dB | |
| 70.79 dB | 79.75 dB | 85.30 dB | |
| 76.84 dB | 85.04 dB | 91.35 dB | |
| 82.86 dB | 90.73 dB | 97.40 dB | |
| 88.86 dB | 96.93 dB | 103.38 dB | |
| 94.87 dB | 109.09 dB | 109.51dB | |
| 100.88 dB | 118.11 dB | 115.56 dB | |
| 106.95 dB | 124.27dB | 121.63 dB | |
| 112.98 dB | 130.34 dB | 127.57 dB | |
| 118.96 dB | 136.20 dB | 133.56 dB |
The transmission range for λ = 1 meter.
| Bits per sample | Minimum received SNR | SNR of transmitted signal | Transmission range for λ=1 m |
|---|---|---|---|
| 2 dB | 42.72 dB | 8.62 m | |
| 2 dB | 49.06 dB | 17.90 m | |
| 2 dB | 55.22 dB | 36.39 m | |
| 2 dB | 61.29 dB | 73.19 m | |
| 2 dB | 67.37 dB | 147.40 m | |
| 2 dB | 73.37 dB | 281.83 m |