What has changed in Miracast since its original release?
New enhancements focus on high-definition (HD) content, increased performance, and better battery life for Miracast devices.
Is a Wi-Fi connection needed to stream a video from the internet?
Miracast is unique to other wireless display solutions in that a direct peer-to-peer connection between two devices may be formed to share content residing on the source device, without the need for a Wi-Fi network. If streaming content from the internet, a network connection is required.
What is the benefit of MU-MIMO?
MU-MIMO is an innovative breakthrough that enables simultaneous communication to multiple devices, improving overall speed and enabling network multitasking.
How can I upgrade my device to use wave 2 features?
Upgrading devices to use wave 2 features is implementation dependent. Some devices can be upgraded through software, but most will require new hardware.
What performance advances are enabled by Wi-Fi CERTIFIED ac?
Wi-Fi CERTIFIED ac enables higher data rates, higher capacity and lower latency. Products implementing the technology behind Wi-Fi CERTIFIED ac with wave 2 features are capable of multi-gigabit data rates– nearly triple that of devices implementing only wave 1 features.
What new applications are enabled with Wi-Fi CERTIFIED ac?
Wi-Fi CERTIFIED ac handles today’s demanding applications and paves the way for new applications in the future. Certified-ac devices are more robust and offer a greater user experience including:
Transferring an HD movie to a tablet in under 4 minutes
Sharing photo albums with friends in seconds
Streaming three HD quality videos at one time
Wi-Fi CERTIFIED ac devices also improve wireless performance in the enterprise in the following ways:
Enhanced user experience for teleconference meetings
Delivering greater in-office networking coverage – more clients for the same number of APs per office area
Projecting graphics, video and audio to a large screen in a conference room or auditorium
Are Wi-Fi CERTIFIED ac devices dual-band?
Wi-Fi CERTIFIED ac operates in the 5 GHz band, but devices support the 2.4 GHz band by integrating Wi-Fi CERTIFIED n. Dual-band devices switch between the more crowded but popular 2.4 GHz frequency band, to the cleaner 5 GHz frequency band to connect more demanding applications and avoid interference from other devices.
Is Wi-Fi CERTIFIED ac interoperable with previous versions of Wi-Fi?
As with all Wi-Fi CERTIFIED devices, Wi-Fi CERTIFIED ac products are tested to ensure interoperability with legacy Wi-Fi CERTIFIED products. Products must operate in the same frequency band in order to connect.
Does Miracast support devices like wireless speakers? (audio only)
Audio-only devices are not part of the Miracast certification program.
How does Miracast protect premium content?
Miracast provides industry-standard protection of premium content through support of High-bandwidth Digital Content Protection (HDCP). HDCP is a wireless adaptation of the same trusted content protection mechanisms widely used for cabled interfaces, providing diversity in premium content options. This feature is designed to protect the digital rights of content owners and to encourage their efforts to make their content available.
What formats does Miracast support?
Miracast supports many commonly used audio/video format. For a complete list, download the Miracast Technical Overview.
How is Miracast related to Wi-Fi Direct?
Wi-Fi Direct allows devices to connect directly to each other, without the need for a Wi-Fi access point (AP). It simply requires the push of a button or the entry of a PIN. Wi-Fi Direct allows source and display devices to discover one another and provides the underlying device-to-device connectivity for Miracast. Miracast builds upon Wi-Fi Direct with mechanisms to negotiate video capabilities, setup content protection (if needed), stream content, and maintain the video session.
What features does Miracast certification test?
Miracast certification includes testing for audio/video (A/V) latency, quality, and synchronization offset. Testing ensures that devices operate across vendors, provide simplified discovery and setup, meet the minimum display resolution requirement, and implement content protection (when implemented). Miracast devices are also tested for implementation of WPA2™ security. Wi-Fi Alliance members may view details on certification testing in the Wi-Fi CERTIFIED Miracast Test Plan.
Must both the content source and display be Miracast devices?
Both the display and the source devices must be Miracast certified. Miracast may be used on devices without embedded Wi-Fi capability by using a Miracast-certified adapter that supports an interface such as High-Definition Multimedia Interface (HDMI) or Universal Serial Bus (USB).
What types of equipment are tested?
Miracast certification is available for video-capable devices such as TVs, handsets, tablets, laptops, set-top boxes, cameras, and projectors.
What is the difference between Miracast and Wi-Fi Display?
Miracast is the brand for the certification program operated by Wi-Fi Alliance. Devices that pass this certification testing can be referred to as “Wi-Fi CERTIFIED Miracast™ devices” or “Miracast® devices”. Miracast certification is based on the Wi-Fi Alliance Miracast Specification. This is the underlying specification developed by Wi-Fi Alliance members, and is copyrighted and owned by Wi-Fi Alliance. Wi-Fi Display is the original name for the Miracast technology.
How does Wi-Fi Alliance help ensure product compatibility and a good user experience for certified products?
Compatibility and quality are achieved through testing of Wi-Fi products. Consumers should always look for the Wi-Fi CERTIFIED logo to ensure the best user experience possible.
Are Wi-Fi CERTIFIED products protected by security?
As of July 1, 2020, all new Wi-Fi CERTIFIED devices require WPA3. The only way to be sure that a product meets the latest security standards is to purchase only Wi-Fi CERTIFIED products.
What is WMM?
Wi-Fi Multimedia, represented by the acronym WMM, is related to Wi-Fi CERTIFIED WMM® programs. These optional certifications provide multimedia enhancements for Wi-Fi networks that improve the user experience for audio, video, and voice applications.
