Except in countries such as Netherlands, South Korea and Norway, where there is a huge penetration of fixed line broadband, Wi-Fi networks used at homes are growing at lesser rate due to increased use of mobile broadband data plans. In emerging markets such as India due to infrastructure issues, many are preferring mobile broadband over fixed line broadband. The smart home and IoT technologies which require WiFi n/ws going to drive the growth of WiFi network in homes.
Market researcher Strategy Analytics has reported 450 million plus households worldwide currently have Wi-Fi networks set up in 2014, a 5 percent increase from 2013.
China has 108 million homes with Wi-Fi networks, followed by the United States at 72 million, and Japan at 30 million, as per Strategy Analytics.
To give you some data on India's broadband market knowledgefaber.com says "overall Fixed Broadband market is expected to grow from 10.3 million in 2010 to approximately 49.3 million subscribers in 2015. This includes the four technologies used by ISPs to deliver broadband, namely DSL, Fiber (FTTH, FTTC, vDSL, others), Cable and Others (Unlicensed Wimax, Wi-Fi, leased lines and Ethernet, etc.)", in a report summary of subject "Fixed Broadband Access Equipment Market in India" D-Link is set to lead Indian WLAN router market.