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Tài liệu W-CDMA and cdma2000 for 3G Mobile Networks pdf

... consists of 6 bands with a total of 60 MHz width in either direction with a guard space of 20 MHz in between. Frequency bands A, B, and C are each 15 MHz wide in either direction. Bands D, E, and F have ... cdma2000 works in the FDD mode, operates with one or more carriers, and is backwards compatible with the 2G system cdmaOne. The other proposal, from TR45.3, is UWC-136, which is wideband TDMA ... ratio that is being used here, and D/R ϭ 4.6. A few other permissible val- ues of N are N ϭ 3 with i ϭ 1 and j ϭ 1, N ϭ 12 with i ϭ 2 and j ϭ 2, N ϭ 19 with i ϭ 3 and j ϭ 2, and so on. D>R ϭ 23N N...

Ngày tải lên: 23/12/2013, 01:17

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Ngày tải lên: 11/03/2014, 16:29

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influence of corporate social responsibility disclosure on corporate governance and company performance

... Link CG and CSR is part of the same company responsible for continuously promoting sustainability and growth, but also happy stakeholders and CG and CSR are two aspects (external and internal) ... and CSR is clearly an outstanding two-way relationship. Related links CG-CSR, most respondents seemed to support the view that there is a link between CG and CSR with the CG formed as a necessary ... economic strengths in order to comply with international standards and cope with high-speed development of the world.This study investigates how important CSR is and the impact it has on the Vietnamese...

Ngày tải lên: 13/03/2014, 14:20

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Ngày tải lên: 31/05/2014, 01:26

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timoshenko w. ukraine and russia. a survey of their economic relations. washington, 1919

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Ngày tải lên: 04/06/2014, 00:29

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McGraw Hill - 2002 - W-CDMA and cdma2000 for 3G Mobile Networks_2 doc

... separation between the two frequencies that the signal variations are correlated below is called the coherence bandwidth. When the channel bandwidth is less than the coherence bandwidth, the resulting ... increase even more. Coherence Bandwidth and Power Delay Profiles To understand coherence bandwidth, assume for simplicity that sig- nals are being transmitted at two different frequencies over ... the reader with a basic under- standing of the principles of wideband CDMA technology. The chapter begins with an overview of the various access technologies. It next considers a wideband CDMA...