WiDi vs WiFi,Difference between WiDi and WiFi,Wireless Display
This page compares WiDi vs WiFi describes difference between WiDi (Wireless Display) and WiFi technologies. WiDi stands for Wireless Display and WiFi stands for Wireless Fidelity.
WiDi is the technology developed by Intel. The feature is built into many of the intel products such as laptops, tablets etc. This technology helps user to connect their PC or any other computing devices such as laptop, tablet with HDTV. Using WiDi user can stream audio, video, images, applications wirelessly from PC/laptop/tablet/smartphone to HDTV with very less latency to provide greater user experience.
How WiDi Works
Let us see How WiDi works:
It uses hardware and software functionalities to compress and transmit video into H.264 format as well as digital audio with upto 6 channels over WiFi connection to WiDi compliant receiver. It does not require any WiFi Access Point or router or hotspot for operation. It uses WiFi Direct for wireless connection. Figure-1 depicts typical WiDi system. As shown normal TV can be made compliant WiDi technology with the help of suitable WiDi adapter.
For Windows Operating System 7 and 8 it requires third or fourth generations of CPU (Central Processing Unit).
Intel WiDi 4.2 supports following features:
• HD 1080pixel video
• 5.1 surround sound
• Supports upto 6 multiple audio channels at 16 bits/48 KHz LPCM.
• Supports WiUSB channel
How WiFi works
Let us see How WiFi works:
WiFi network requires WiFi router or hotspots to establish the WLAN or WiFi network. Once the router is placed and it is powered on as well as connected with broadband internet connection, all the other wifi compliant devices such as smartphone, laptop, PC, tablet can share the same internet line for use. There are different versions of WLAN or WiFi standards, each support different data rates and coverage distance.
Refer difference between 11a vs 11b vs 11g vs 11n➤.
WiDi vs WiFi-Difference between WiDi and WiFi
|Full Form||Wireless Display||Wireless Fidelity|
|Description||WiDi uses WiFi for transmission and reception of compression audio/video instantly.||It is a wireless standard used by many technologies for co-existance and offloading their high bandwidth demand to wifi compliant devices. For example, MiFi device uses for WiFi and LTE functionality and hence offloads LTE data load to the wifi infrastructure.|
|Frequency||5 GHz (WiDi version 4.2)||2.4 GHz, 4.9 GHz, 5 GHz|
|Standard versions||WiDi 4.1, 4.2, 4.3, Miracast||Different IEEE 802.11 standards are available (11a, 11b, 11g, 11n, 11ac, 11ad)|
|Advantages||It does not require wifi hotspot or router and works directly with wifi direct.||It fullfils high data rate and medium coverage wireless needs without much of the interference at very affordable cost. It requires router or hotspot for operation.|
WiDi-Wireless Display Applications
Following are the applications of WiDi technology:
• Share your small screen(e.g. mobile) on bigger screen device(e.g. HDTV).
• Establish 2 way connection between smart device and HDTV for real time audio and video experience at fast speed.
• Interact applications (such as social media, music etc.) of smartphone on big screen HDTV.