The clash between Bluetooth and Wi-Fi

Bluetooth and Wi-Fi clash and the other way reprint from: http://www.bluesoleil.com.cn/information/605.html

In the field of short-range wireless communication, Bluetooth and Wi-Fi are a pair of enemies.

Their first confrontation appeared in the year 2009. In the year, the Bluetooth Technology Alliance released 3.0 technical specifications, the new technology introduced the WLAN, transfer speed changed to 8 times times the original, which makes Bluetooth also achieve high-speed transmission.

But Wi-Fi is the area where Wi-fi® is focused, and Bluetooth intrusion into this area is tantamount to moving the Wi-Fi cheese. Whether intentionally or unintentionally, six months later, the Wi-Fi Alliance announced a new standard Wi-Fi Direct that would allow Wi-Fi devices to connect to each other without having to access a traditional home, office or hotspot network. This means that Wi-Fi also enables direct connection between Bluetooth devices. A time of public opinion, there are many views that Wi-Fi direct technology means the end of Bluetooth technology.

But the Bluetooth technology Alliance reacted quickly, calling Bluetooth 3.0 technology more advantageous and more convenient to use. And in 2010 announced the introduction of Bluetooth 4.0, which is only a year from the release of Bluetooth 3.0, so fast Bluetooth version iterations, in the past is very rare.

By 2012, Bluetooth technology had not declined, and Wi-Fi Direct had not become standard for consumer electronics, even in the knowledge of ordinary consumers, Wi-Fi Direct was a very jerky noun. The confrontation between the two will continue, and who is to win, but also by the market by consumers to decide. There is also the view that Bluetooth and Wi-Fi direct strengths, not an alternative relationship, but coexistence and development.

recently, the Bluetooth Technology Alliance Global member Development and relations director Tan Wenyue (Marriot winquist) in the Sina Science and technology access to the location of Bluetooth and Wi-Fi relationship: Bluetooth and Wi-Fi is not a direct competitive relationship, there are some business areas they overlap each other, But it's not overlapping in most areas.

Tan Wenyue For example, in the medical field, Wi-Fi because of the power and power are very strong, need to charge frequently, but also some medical equipment some interference, so generally speaking, it is not suitable for the medical field. The most notable feature of the Bluetooth 4.0 version is its low energy consumption. With Bluetooth 4.0 low-power support, it can take up to a year or even longer to be powered by a coin cell battery. In this regard Wi-Fi and Bluetooth there is no way to compare, so Bluetooth still has its own application of some new areas. And the Wi-Fi 802.11ad actually has the very good security.

The Wi-Fi Alliance has announced the launch of the MIRACAST certification program in September this year. Miracast users can connect via Wi-Fi Direct, browse photos taken by a smartphone on a large screen, or share a laptop screen in real time through a conference room projector without having to connect to any Wi-Fi network--miracast certified device. This makes the applications described in the Wi-Fi direct white paper more and more realistic, for example through Miracast Certified wireless displays.

"Bluetooth and Wi-Fi have both a distinction and overlap, and both have a place to learn from each other," said MIKE LU, a technology market manager at Lu Rongliang, a Greater China region. In positioning, Bluetooth technology is positioned on a personal area network (PAN), while Wi-Fi is a technology in the middle of a WAN (WAN) and pan. In overlapping areas, because Bluetooth transmission technology has become the standard handset, the user easily paired with other devices, coupled with Wi-Fi and adjacent band network such as Long Distance planning (LTE) prone to interference, and Bluetooth technology has frequency hopping technology to maintain signal stability and confidentiality.

According to the Senior Market Research institute ABI, in 2012 alone, 2 billion of the world's Bluetooth-enabled products entered the market. At present, Bluetooth is the most widely known application is Bluetooth headset, but according to the introduction of Bluetooth to Sina technology, it also has a broader application space, mobile phones, automobiles, medical, consumer electronics, sports and fitness has constituted the five major Bluetooth ecosystems.

In fact, Bluetooth 4.0 is a specification synthesized by three Bluetooth specifications, namely traditional Bluetooth, low power Bluetooth and high speed Bluetooth technology, which can be combined or used alone. Compared with Wi-Fi, the most notable feature of Bluetooth 4.0 is the low energy consumption, which becomes a key point in Bluetooth and Wi-Fi competitive market, and the low energy consumption is the internet of things devices rely on, this feature or will determine the future development of Bluetooth strategic direction.

this month's newly appointed board member of the Bluetooth Technology Alliance, Steven. "Most crucially, nearly 500 to 100 billion devices are using low-energy wireless connectivity technologies in the development of the Internet of things," Dr. Gray said. Since its inception, Bluetooth Technology Alliance members of the company's total number of Bluetooth equipment shipments have reached nearly 10 billion pieces, these numbers far beyond any low-power RF wireless technology, which is also a natural choice for the market, conducive to the possibility of interoperability. In essence, Bluetooth low-energy wireless technology will be the first choice for IoT applications in the future. "

Data show that up to now, the market has more than 7 billion Bluetooth devices, and the expected end of 2012 this figure will reach 9 billion. Wi-Fi, it is estimated, allowed Wi-Fi direct devices to reach 173 million of sales in 2011.

The clash between Bluetooth and Wi-Fi