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Facing the challenge of meeting ever-increasing demand for wireless data, the industry is striving to exploit large swaths of unlicensed spectrum, which supports open access. Major standards bodies are currently considering a proposal to retool and deploy long term evolution (LTE) technologies in unlicensed bands. This paper studies the fundamental question of how the unlicensed spectrum can be shared...
Facing the challenge of providing sufficient network capacity for wireless data, the industry is currently debating how to take advantage of hundreds of megahertz of unlicensed spectrum. One specific proposal being considered by the 3GPP is to retool and deploy Long Term Evolution (LTE) technologies in unlicensed bands. This paper studies the fundamental questions of whether and how the unlicensed...
In this paper, we analyze the characteristics of frequency spectrum and autocorrelation function of the signal in global navigation satellite system (GNSS) with binary offset carrier (BOC) modulation. We discuss the basic working processes of the traditional BOC acquisition algorithm and the one by using auto-correlation side-peak cancellation technique (ASPeCT). We also evaluate the effect of eliminating...
Device-to-device (D2D) communications can be underlaid with a cellular infrastructure to increase resource utilization, improve user throughput and extend battery lifetime of user equipment. This paper studies a hybrid D2D and cellular system where D2D transmissions are controlled by the cellular base transceiver stations (BTSs) and use the cellular uplink resource blocks. A two-layer power control...
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