نتایج جستجو برای: term evolution
تعداد نتایج: 904762 فیلتر نتایج به سال:
Future generation cellular networks are expected to deliver an omnipresent broadband access network for an endlessly increasing number of subscribers. Long term Evolution (LTE) represents a significant milestone towards wireless networks known as 4G cellular networks. A key feature of LTE is the implementation of enhanced Radio Resource Management (RRM) mechanism to improve the system performan...
Long Term Evolution (LTE) has been introduced by 3 rd Generation Partnership Project and dominates the 4 th generation of mobile telecommunication network. In this paper our work is unique in providing a detailed performance study based on NI PXIe – 5644 KIT. Our performance study includes FDD and TDD operation modes for uplink and downlink transmission in physical channel, data modulation, EVM...
PURPOSE To analyze conjunctival cytological features 1 month after pterygium excision using limbo-conjunctival autograft (LCA) with and without intraoperative mitomycin C and to assess tissue short-term evolution in both situations. METHODS Fifty-nine primary nasal pterygia from 59 patients were excised with LCA. Twenty-nine were treated with intraoperative mitomycin C 0.02% (MMC+) and 30 wer...
3GPP LTE (Long Term Evolution) is the evolution of the UMTS which will make possible to deliver next generation high quality multimedia services according to the users' expectations. Since the LTE performance evaluation needs link and system level simulations, a software tool to simulate the LTE Downlink based on OFDM technology with MIMO antenna processing is presented in this master thesis. T...
In the first chapter of this book, David Lane et al. point out that the Darwinian approach to biological evolution is insufficient for the description and explanation of the cultural and social transmission of many, if not most, of society’s characteristics. Instead, the chapter proposes that we shift from ‘population thinking’ to ‘organization thinking’ to understand socio-cultural phenomena. ...
Long Term Evolution (LTE) is a significant project of 3rd Generation Partnership Project (3GPP), initially proposed on the Toronto conference of 3GPP in 2004 and officially started as LTE work item in 2006. LTE, as a transition from the 3rd generation (3G) to the 4th generation (4G), has achieved great capacity and high speed of mobile telephone networks without doubt. It defines a new packet-o...
We present a simple model where anisotropic evolution is driven by kinetic term in extra dimensions. By introducing a canonical or a ghost kinetic term, the possibility of anisotropy is studied. [email protected]
The term epidemic (from the Greek epi [on] plus demos [people]), first used by Homer, took its medical meaning when Hippocrates used it as the title of one of his famous treatises. At that time, epidemic was the name given to a collection of clinical syndromes, such as coughs or diarrheas, occurring and propagating in a given period at a given location. Over centuries, the form and meaning of t...
We investigated the brightness evolution of 7 FU Ori systems in the 1 − 200 µm wavelength range using observations from the Infrared Space Observatory (ISO), 2MASS and MSX data. The SEDs were compared with earlier ones derived from the IRAS photometry and ground-based observations around the epoch 1983.
The paper develops the argument that the long-term structural evolution of an industry depends on the evolution of a vertically-related, downstream industry. We analyse two pairs of vertically-related industries, the jet and turboprop aircraft and engine industries, since the first introduction of the jet and turboprop technologies to 1998. The paper shows that the evolutionary dynamics of the ...
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