WiMax is hard to replace Wi-Fi

Wi-Fi is still thriving in cities. ( Photo: BBC ) This wide-area wireless connection technology will be difficult to dominate Wi-Fi in densely populated areas and will only be appreciated in remote areas. In addition, security and frequency bands also limit the popularity of WiMax.

WiMax can transmit 40 Mbps data in relatively large range (10 km). An area that supports WiMax in theory will allow hundreds of businesses to connect at 1.5 Mbps and thousands of households accessing at a rate of 256 Kb / sec. Therefore, many people believe that this is a "perfect" alternative to Wi-Fi (higher access speed but only within a few dozen meters). Furthermore, Intel, one of the companies that is promoting WiMax, also described it as a potential technology for businesses, from mobile phone companies to network service providers.

However, the OECD Organization for Economic Cooperation and Development confirmed that WiMax has too many shortcomings that it cannot guarantee a pink future.

Although the Wimax Forum has tightened its standards for price reductions, operating costs are still very high and other technical issues are threatening the success of this technology. Set up a national WiMax network in the US up to over 3 billion USD. "Third-generation network operators have suffered from a huge investment to deploy 3G. The prospect of having to spend billions more to start with WiMax is something no one wants to accept," OECD explained.

In addition, mobile phone companies also seem to appreciate other alternative technologies such as HSDPA (High Speed ​​Downlink Packet Access). More importantly, the frequency band used by WiMax is incompatible in every country and service providers must quickly resolve the security issue.