Yingrong Coral Sung

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Long Term Evolution (LTE) and Worldwide Interoperability for Microwave Access (WiMAX) are two major technologies toward next-generation mobile broadband standards, which are both expected to provide higher throughput and lower transmission latency for mobile users. This paper measures and compares the latency and the throughput of Time Division-Long Term(More)
Long Term Evolution (LTE) evolved from Universal Mobile Telecommunications System (UMTS), which utilizes IP Multimedia Core Network Subsystem (IMS) to provide voice service. In most existing commercial operations, the LTE networks provide zonal coverage as compared with UMTS networks which provide full service coverage. A User Equipment (UE) can initiate or(More)
When a mobile operator migrates its network from the 3rd Generation (3G) system to Long Term Evolution (LTE), both 3G and LTE will co-exist for a period of time. Since the 3G Circuit-Switched (CS) voice mechanism is more mature and available than that for LTE Voice over Internet Protocol (VoIP), the operator may consider CS fallback as a solution to provide(More)
Recently, smartphones have been used as remote controllers for home appliances through con-nectivity of mobile telecom network or Wi-Fi. To control several home appliances in a room, a mechanism is required for a smartphone to correctly select the target appliance. Through the built-in electronic compass function in the smartphone, we propose a scheme(More)
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