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A peer-reviewed article of this preprint also exists.
This version is not peer-reviewed
Methods | Accuracy | Disadvantages |
---|---|---|
PSG [11] | +++++ | Complex instrument; Laboratory testing; Costy and time-consuming |
ECG [12] | ++++ | Need algorithm to analyze data |
Sound Sensing [12] | +++ | Low accuracy; Susceptible to noise |
Remote-Based [13] | +++ | Sensitive to interference from the subject’s movements and activities |
More + means a higher accuracy |
Parameters | Value/Technique | |
---|---|---|
OSA monitor | ECG | |
Wireless power transfer | Inductive link | |
RX(size, dimension) | ≈ 10 mm | |
D(Skin separating TX and RX) | 5 mm | |
Carrier frequency | 2 MHz | |
Data exchange | Modulation type | BPSK |
Information stream | 10 bits | |
Power management | Input(Volt) | AC (1-3.3) |
Output(Volt) | DC (1.2; 1.8; and 3.1) | |
Stimulation stage | Power supply(Volt) | 3.1 |
Stimulus type | Biphasic current | |
Frequency range | 10 - 40 Hz | |
Current density range | 0 - 2.4 mA | |
Digital/analog converter | 5 bits | |
Number of channels | 1 | |
Nerve-electrode interface | 1 k, 400 nF |
Method | Segmentation | Sen(%) | Spe(%) | Acc(%) | F1(%) |
KNN[33] | 60s | 78.00 | 75.00 | 82.21 | 76.50 |
SVM[33] | 60s | 76.00 | 82.00 | 78.89 | 71.80 |
RNN[34] | 60s | 96.00 | 82.00 | 83.20 | 88.45 |
Filter + CNN | 60s | 88.64 | 83.42 | 86.74 | 85.95 |
120s | 93.52 | 84.23 | 88.68 | 88.63 |
Description | [35] | [36] | [37] | This work (Mea.) |
Tx: | 245 | 289 | 139 | 88 |
Rx: | 161 | 31 | 22 | 10 |
Coupling: k | 0.1 | N/A | 0.09 | |
PTE(air): | 76.3 | N/A | N/A | 39.8 |
PTE(skin): | N/A | N/A | 18 | 31.8 |
Dia. of Rx (mm) | 22 | 1 | 2.5 | 9.2 |
Frequency (MHz) | 13.56 | 20 | 60 | 2 |
Distance (mm) | N/A | 10 | 5 | 5 |
Max PDL (mW) | N/A | 2.2 | N/A | 20 |
Publications | [35] | [38] | [39] | This Work |
CMOS processs(m) |
0.18 | 0.5 | 0.35 | 0.04 |
Structure | Doubler LDO |
Adaptive Active |
Doubler | Doubler LDO |
Frequency(MHz) | 13.56 | 2 | 6.78 | 2 |
(V) | 1.192 | 5 | 1-1.7 | 1.4-2.6 |
(V) | 2 | 2.5-4.6 | 3.3 | 3.3 |
(V) | 1.8 | N/A | N/A | 1.2, 1.8, 3.1 |
(V) | 0.38 | N/A | N/A | 0.13 |
PCE(%) | 85 | 72-87 | 92.2 | 77.5 |
(k) | 0.1 | = 2.8mA | 0.5 | 1 |
Chip Area() (Without PAD) |
0.12 | 0.3 | N/A | 0.064 |
PCE: Power conversion efficiency; : load impedance |
Publications | [41] | [40] | [25] | This Work |
CMOS Technology(m) |
0.18 | 0.18 | 0.5 | 0.04 |
Carrier freq.(MHz) | 13.56 | 2 | 13.56 | 2 |
Type | PLL-Based | PLL-Less | PLL-Based | PLL-Based |
High-Q Telemetry | Yes | No | Yes | Yes |
Power consumption(W) |
217 | 82 | 5148 | 42 |
Date rate (Mb/s) | 0.211 | 1 | 0.02 | 0.06 |
Supply Voltage (V) | 2 | 1.8 | 3.3 | 0.7 |
Energy Efficiency (pJ/bit) |
1028 | 82 | 257400 | 672 |
Disclaimer/Publisher’s Note: The statements, opinions and data contained in all publications are solely those of the individual author(s) and contributor(s) and not of MDPI and/or the editor(s). MDPI and/or the editor(s) disclaim responsibility for any injury to people or property resulting from any ideas, methods, instructions or products referred to in the content. |
Submitted:
25 September 2023
Posted:
27 September 2023
You are already at the latest version
A peer-reviewed article of this preprint also exists.
This version is not peer-reviewed
Submitted:
25 September 2023
Posted:
27 September 2023
You are already at the latest version
Methods | Accuracy | Disadvantages |
---|---|---|
PSG [11] | +++++ | Complex instrument; Laboratory testing; Costy and time-consuming |
ECG [12] | ++++ | Need algorithm to analyze data |
Sound Sensing [12] | +++ | Low accuracy; Susceptible to noise |
Remote-Based [13] | +++ | Sensitive to interference from the subject’s movements and activities |
More + means a higher accuracy |
Parameters | Value/Technique | |
---|---|---|
OSA monitor | ECG | |
Wireless power transfer | Inductive link | |
RX(size, dimension) | ≈ 10 mm | |
D(Skin separating TX and RX) | 5 mm | |
Carrier frequency | 2 MHz | |
Data exchange | Modulation type | BPSK |
Information stream | 10 bits | |
Power management | Input(Volt) | AC (1-3.3) |
Output(Volt) | DC (1.2; 1.8; and 3.1) | |
Stimulation stage | Power supply(Volt) | 3.1 |
Stimulus type | Biphasic current | |
Frequency range | 10 - 40 Hz | |
Current density range | 0 - 2.4 mA | |
Digital/analog converter | 5 bits | |
Number of channels | 1 | |
Nerve-electrode interface | 1 k, 400 nF |
Method | Segmentation | Sen(%) | Spe(%) | Acc(%) | F1(%) |
KNN[33] | 60s | 78.00 | 75.00 | 82.21 | 76.50 |
SVM[33] | 60s | 76.00 | 82.00 | 78.89 | 71.80 |
RNN[34] | 60s | 96.00 | 82.00 | 83.20 | 88.45 |
Filter + CNN | 60s | 88.64 | 83.42 | 86.74 | 85.95 |
120s | 93.52 | 84.23 | 88.68 | 88.63 |
Description | [35] | [36] | [37] | This work (Mea.) |
Tx: | 245 | 289 | 139 | 88 |
Rx: | 161 | 31 | 22 | 10 |
Coupling: k | 0.1 | N/A | 0.09 | |
PTE(air): | 76.3 | N/A | N/A | 39.8 |
PTE(skin): | N/A | N/A | 18 | 31.8 |
Dia. of Rx (mm) | 22 | 1 | 2.5 | 9.2 |
Frequency (MHz) | 13.56 | 20 | 60 | 2 |
Distance (mm) | N/A | 10 | 5 | 5 |
Max PDL (mW) | N/A | 2.2 | N/A | 20 |
Publications | [35] | [38] | [39] | This Work |
CMOS processs(m) |
0.18 | 0.5 | 0.35 | 0.04 |
Structure | Doubler LDO |
Adaptive Active |
Doubler | Doubler LDO |
Frequency(MHz) | 13.56 | 2 | 6.78 | 2 |
(V) | 1.192 | 5 | 1-1.7 | 1.4-2.6 |
(V) | 2 | 2.5-4.6 | 3.3 | 3.3 |
(V) | 1.8 | N/A | N/A | 1.2, 1.8, 3.1 |
(V) | 0.38 | N/A | N/A | 0.13 |
PCE(%) | 85 | 72-87 | 92.2 | 77.5 |
(k) | 0.1 | = 2.8mA | 0.5 | 1 |
Chip Area() (Without PAD) |
0.12 | 0.3 | N/A | 0.064 |
PCE: Power conversion efficiency; : load impedance |
Publications | [41] | [40] | [25] | This Work |
CMOS Technology(m) |
0.18 | 0.18 | 0.5 | 0.04 |
Carrier freq.(MHz) | 13.56 | 2 | 13.56 | 2 |
Type | PLL-Based | PLL-Less | PLL-Based | PLL-Based |
High-Q Telemetry | Yes | No | Yes | Yes |
Power consumption(W) |
217 | 82 | 5148 | 42 |
Date rate (Mb/s) | 0.211 | 1 | 0.02 | 0.06 |
Supply Voltage (V) | 2 | 1.8 | 3.3 | 0.7 |
Energy Efficiency (pJ/bit) |
1028 | 82 | 257400 | 672 |
Disclaimer/Publisher’s Note: The statements, opinions and data contained in all publications are solely those of the individual author(s) and contributor(s) and not of MDPI and/or the editor(s). MDPI and/or the editor(s) disclaim responsibility for any injury to people or property resulting from any ideas, methods, instructions or products referred to in the content. |
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