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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 21 to 22 of 22 (0.008 seconds)| 21 |
中共加入關稅暨貿易總協定問題之研究 / A Study on Mainland China's Participation in GATT金中燮, Kim, Jung-Sup Unknown Date (has links)
關貿總協於一九四八年成立以來、已成為規範世界貿易最重要的 協定。而中共為全球第十五大貿易國、因此自然不應被排除在外 中共之情況特殊、引發一些法律上以及經濟上的問題、使其入蟫藆撬繺祭蛂C共入會案之法律問題主要來自其「恢復原會籍」之要求。此一起祖父條款、入會費、與排除條款之適用上的問題。另外、中籍亦對香港、澳門之會籍有重大影響。經濟問題則是起因於中共之非市場經濟體制以及其要求享受開家之優惠。雖然中共以進行大幅的經濟改革、但主要締約國仍經濟制度不夠自由。另外、由於中共龐大的出口潛力、使各締願給予其開發中國家所享有的優惠。於中共加入關貿總協對雙方皆有正面意義、因此預料兩方面都度的妥協以求問題之解決。實上、中共已經以「新加入」的方式與關貿總協展開談判、因恢復會籍」之要求並無任何實質意義、至於入會條件方面、關同意中共可以以關稅減讓的方式入會、但中共卻無法避免歧視限制以及特別防衛條款。
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4G LTE : eMBMS with MBSFN Service Simulation using OPNETWalid, Abdelrahman January 2014 (has links)
Long Term Evolution (LTE) known in the market as 4G LTE, it is an evolution of the GSM/UMTS standard. The overall aim of LTE was to provide a new radio access technology focusing on packet-switched data only. LTE has provided a new peak download rates, low data transfer latencies, and improved the support for mobility. 3Th Generation Partnership Project (3GPP) specialized that LTE released 10 and beyond known as LTE-advanced it is the second evolution of LTE. It has some services such as Coordinated Multipoint Transmission and Reception (CoMP), evolved Multimedia Broadcast and Multicast Service (eMBMS) with Multicast-Broadcast Single-Frequency Network (MBSFN). The development still continuous on LTE-advanced, it is intended to meet the requirement of advanced application that will become common in the wireless marketplace in future. The goals of this project is to simulate one of LTE-A services on LTE standard such as CoMP or/and eMBMS with MBSFN using OPENT LTE, and measure some statistic such as spectral efficiency and also some other statistics, describe centralization vs. decentralization in LTE, and synchronization in the base station in LTE. OPNET LTE support eMBMS with MBSFN, and don’t support CoMP, the simulation has been done by using eMBMS with MBSFN. Finally the objectives of the project has achieved, the result show that when eMBMS with MBSFN is implemented the throughput increased in the downlink to about 5.52 Mbps and in the uplink to about 5.18 Mbps, and also the system spectral efficiency increased in eNB1 from about 10.25 (bits/s/Hz/cell) to about 13.75 (bits/s/Hz/cell) and in eNB2 from about 10.25 (bits/s/Hz/cell) to about 17.25 (bits/s/Hz/cell). The project also answers if it is possible to have centralization in LTE, describe synchronization in the base station in LTE, and if OPNET is useful for big research.
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