With the increasing use of smart devices recently, mobile traffic has been increasing rapidly, which in turn results in greater demand for the frequency.Many countries have attempted to use the vacant frequencies known as TV White Space (TVWS) in an effort tosolve the frequencyproblem. Super...

Recently, smart home services have been highlighted as the Internet of things market grows. Since the smart home services were introduced in the market, they were expected to grow rapidly. However, the smart home market recently experienced chasm, and still remains in early stage. This paper...