RFPassive WiFi vs. Traditional WiFi: Key Differences
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This article explores the differences between Passive WiFi and traditional WiFi technologies. Traditional WiFi systems consume significant power due to their reliance on analog RF circuits. Passive WiFi aims to address this issue through a different architecture.
Understanding Passive WiFi
Passive WiFi utilizes digital baseband processing in devices like smartphones and tablets, while the analog RF circuits are concentrated in a single, plugged-in device. This architectural shift significantly reduces power consumption in the mobile devices.
Passive WiFi Architecture
By eliminating the need for analog RF components in smartphones or tablets, Passive WiFi extends battery life considerably. The Passive WiFi network comprises a single plugged-in device and one or more passive WiFi devices.
Passive WiFi vs. Traditional WiFi: Key Differences
The following table summarizes the key differences between Passive WiFi and traditional WiFi.
| Specifications | Passive Wifi | Traditional Wifi |
|---|---|---|
| Distance coverage | 10 to 30 meters (in LOS and through wall scenarios) | 100 meters |
| Power Usage | 10000 times less compared to traditional wifi | Higher compared to passive wifi |
| Data Rate | About 11 Mbps in the downlink | Supports 802.11b (2.4GHz, 11Mbps) and 802.11g (2.4 GHz, 54Mbps), 100 Mbps (11n) to Gbps (11ad) |
| Sharing of network | In passive wifi network, single plugged in device does the carrier sense and informs all the passive wifi devices to transmit or not. | All the WiFi devices share the network with the help of carrier sense mechanism |
