Table 1 Model parameters for the wireless sensor network
From: Cross-layer design for decentralized detection in WSNs
Parameter | Description | Calc | Simulation value (Section 6) | Notes | Layer |
|---|---|---|---|---|---|
W | Channel bandwidth | G | 103 Hz | Â | Physical layer |
N 0 | Noise power spectral density | E | 10-9 W/Hz | CSI | Â |
μ c | Mean path loss | C (1) | [40, 45], [45, 50], [50, 55], [55, 60], [60, 65] dB | CSI |  |
| Â | Â | Â | [65, 70], [70, 75] dB | Â | Â |
σ c | Path loss standard deviation | E | [5, 8] dB | CSI |  |
e r | Reporting energy | D | Design variable | Â | Â |
R | Communication bit rate | D | Design variable | Â | Â |
L | Number of communication slots | C (3) | Ln i  = τ R i  / b |  | MAC layer |
b | Number of encoding bits/observations | G | 16 bits | Â | Â |
q | Retransmission probability | D | Design variable | Â | Â |
Ï„ | Delay for detection | G | 1:150 s | Â | BJA01196-xml0x.png Application layer\c:IMG |
l t | Network lifetime | G | 100:500 days | Â | Â |
l | Sensor lifetime | G | 0.7* lt | Â | Â |
n | Number of observations | C (3) | Ln i  = τ R i  / b |  |  |
c = (μ / σ s )2 | Signal-to-noise ratio | G | [2,3.2], [2.5,3.5], [0.06,0.08], [1,1.4], ×10-3 | QoI |  |
|  |  |  | [0.5,0.7], [0.12,0.16], [0.03,0.04] ×10-3 |  |  |
e0 - ew | Net sensor useful energy | G | 104 J | REI |  |
f r | Sensor reporting rate | G | 200 cycles/day | Â | Â |