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Author:5 [ x+ E* x" r6 K8 _
1. Vice President of IC Engineering in SiBeam, Inc. 項春申博士(Dr. Bernard Shung): @8 I. @0 u$ k Y5 F/ P
2. Tien-Yow Liu2, Senior Staff Systems Engineer, WiMAX System Engineering, Marvell Semiconductor, Inc., ) i! e" r& I* L- w5 j
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Wireless communications have seen vast growth in demand and applications in the last decades. The popularity of cell phones and Wi-Fi has seen no sign of slowing down, while new applications are introduced. Voice, e-mails, instant messages, and wireless web-browsing are becoming everyday experience of an increasing size of population. Higher integration and lower power consumption are key enabling technologies, and at the same time, new wireless standards such as 3G, WiMAX, LTE, are competing to offer higher data rate and better user experience.
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In this paper we would like to examine the wide spectrum of consumer needs, ranging from wide-area-network (WAN), in which coverage and mobility are very important, to local-area-network (LAN), in which cost, convenience and ease of use are critical, then to personal-area-network (PAN), which is even shorter distance than LAN and higher data rate and guaranteed quality of service (QoS) are essential. Taiwan has recently made a large investment in WAN, with M-Taiwan project focused on WiMAX. Taiwan has been in the OEM/ODM business of LAN. But it seems Taiwan has not paid much attention to PAN yet.
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