📜  Gi-Fi 和 Li-Fi 的区别

📅  最后修改于: 2021-10-21 05:34:44             🧑  作者: Mango

Gigabit Fidelity (Gi-Fi):它绝对是第一个安装在芯片上的发射器兼受益者。它采用 CMOS(互补金属氧化物半导体)工艺制造,工作频率为 60 GHz。它将允许以每秒 5 吉比特的速度进行视频传输,这高于目前无线保真度的最大传输速率,费用为 10%。它是在澳大利亚墨尔本的NICTA(澳大利亚国家信息通信技术有限公司)开发的。 NICTA 研究人员决定在 57-64 GHz 的频率范围内构建这项创新。在封闭环境中,可访问的 7 GHz 范围导致每秒 5 GHz 的数据速率,通常在 10 米范围内。它适用于 IEEE 802.15.3C 频段。

Light Fidelity (LiFi):它是一种无线光网络技术,它使用来自 LED 的可见光进行数据传输。 Li-Fi开创了无线通信的新革命。作为一名德国物理学家, Herald Hass不断发现利用光进行数据传输的消息,让世界惊叹不已。 Li-Fi 允许电子设备无需电线即可连接到互联网。基于信号的传播,它比无线保真更安全。 Li-Fi 使用可见光和通信,速度比无线电波快 250 倍,比任何其他宽带都要快。

Gi-Fi 和 Li-Fi
下表列出了 Gi-Fi 和 Li-Fi 之间的差异:

Based on Gi-Fi Li-Fi
Specification authority

NICTA (National ICT Australia Ltd)

IEEE (Institute of Electrical and Electronics Engineers)

Operation

GI-Fi technology transmits the data over the air using the millimeter waves.

Li-Fi transmits data using light intensity modulation.

Data transfer rate

Provides the speed upto 5 Gbps, and more.

Provides the speed upto 1 Gbps.

Frequency of operation

Li-Fi can achieve the frequency of operation around 60 GHz.

Li-Fi can achieve the frequency of operation upto 50 THz.

Coverage Range or distance

GI-Fi range up to 10 meters in particular.

Li-Fi systems can maximum range up to 100 meters depending upon the light intensity and range of that LED.

Data Density

GI-Fi works within the very high dense environment.

Li-Fi works with the high density environment.

Cost

Gi-Fi is very cheap, costs only 10 $.

Li-Fi is cheaper compared to Wi-Fi as it uses light.

Security

Data transfer is less secured compared to Li-Fi.

Li-Fi provides secure data transfer due to the light blocked by the walls.

Power Consumption

Power Consumption is less than 2MW (milli watts).

Power Consumption is upto 1 MW (milli watts).

Primary Devices

Mobile phones, home devices, electronics, etc.

Hospital, vehicle and transportation, aviation, etc.