Báo cáo hóa học: " Multihop relaying and multiple antenna techniques: performance trade-offs in cellular systems" ppt

... Open Access Multihop relaying and multiple antenna techniques: performance trade-offs in cellular systems Kevin R Jacobson 1,2 and Witold A Krzymień 1,2* Abstract Two very important and active ... spatial multiplexing gain, but reducing scat- tering reduces spatial multiplexing gain. To put this ano the r way, MIMO ’s spatial multiplexing and diversity gains are achi...

Ngày tải lên: 21/06/2014, 01:20

... network. Continuum of base stations 2R c R c R nw Figure 1: Network and cell of interest in the fluid model; the minimum distance between the BS of interest and interferers is 2R c and the interfering ... p int,u + p ext,u ,wherep int,u is the internal (or own-cell) received power and p ext,u is the external (or other-cell) interference. Note that we made the choice of including the...

Ngày tải lên: 21/06/2014, 11:20

... power interfering due to shadowing effects In this section, we investigate the impact of nonequal in- terfering powers caused by shadowing on the optimal an- tenna spacings. This amounts to include ... accounts for receiv- ing and transmitting antenna gain and the carrier frequency, and α is the path loss exponent. The contribution of shad- owing in (12) will be considered in...

Ngày tải lên: 22/06/2014, 19:20

... cytokines and other markers, including interleukin (IL)-1b, IL-6, tumor necrosis factor (TNF)a, C-reactive protein and a1-antichymotrypsin, with increased risk for dementia and AD [1-6]. Increased ... changes including a decline in rotarod performance (Figure 1I) as well as increased grooming activity (Figure 1J). Joint pathology was also evaluated in APP/PS1 transgenic mice and...

Ngày tải lên: 19/06/2014, 22:20

... All subjects had worked in the same unregulated stone-grinding workplaces and had no history of smoking, underlying disease of COPD and/ or other mineral dust exposure. Information was available ... workers who are included in this study had previously worked in the same stone-grinding facto- ries in the Azandarian area. They did not have any reported silica exposure before working...

Ngày tải lên: 20/06/2014, 00:20

... problems relating to sensitivity of the HSV-1 and -2 probe relative binding. In a single step multiplex assay mutations in the probe binding area are reported to lead to a loss in sensi- tivity and error in ... mutations in the probe binding area. The remaining 3 samples resulted in poor quality sequencing reactions and the results were not interpretable. Discussion Diagnost...

Ngày tải lên: 20/06/2014, 04:20

... study in drafting of the manuscript and in revising it critically. PNS helped in analysis and interpretation of the data, in the design of the study in drafting of the manuscript and in revising it ... helped in the design of the study and contributed in drafting of the manuscript and in revising it critically. AEB helped in analysis and interpretati on of the...

Ngày tải lên: 20/06/2014, 07:20

... of noscapine have been reported and it has been shown that noscapine interacts with α tubulin resulting in apoptosis in cancerous cells both in vitro and in vivo [5-8]. Moreover, noscapine is also ... noscapine in inhibiting cancer progression in animal models [10,11], there has been no study to ascer- tain whether noscapine can be used in the diagnosis of developing tumors,...

Ngày tải lên: 20/06/2014, 07:20

... loaded NPs, and Xie LY carried out the study of in vivo images in animals and participated in its design and coordination. All authors read and approved the final manuscript. Competing interests The ... advantage that it is non- toxic and non-immunogenic, leading to approved by the FDA for internal use in humans and inclusion in the list of inactive ingredients for oral...

Ngày tải lên: 20/06/2014, 22:20

... flooding Utilize route cache information, creating reverse path in CREQ forwarding [13] Reactive routing protocols Piggybacking of CREQ & CREP on the routing packets CRLs maintenance and deployment ... setup or bootstrapping, applying a DCA private key, joining a new CH, evicting an existing CH, refreshing CH shares. In Bootstrapping operation, to construct the shared key and esta...

Ngày tải lên: 20/06/2014, 22:20