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In this paper, a hybrid time-division duplex access scheme with confidence factor based weighted cooperative sensing for the femtocells has been proposed in cognitive massive multiple-input multiple- output (massive MIMO) system to improve the detection performance and achieve the high throughput while alleviate the influence to the macrocell users as little as possible. In the cognitive massive MIMO...
Enoyl coenzyme A hydratase short chain 1 (ECHS1) is an important part of the mitochondrial fatty acid β-oxidation pathway. Altered ECHS1 expression has been implicated in cancer cell proliferation. This study assessed ECHS1 expression in human gastric cancer cell lines and investigated the effects of ECHS1 knockdown on gastric cancer cell proliferation and migration. The human gastric cancer cell...
Femtocells are attractive candidates in the future cellular system such as long-term evolution (LTE). However, the interference introduced by femtocells may hinder the improved system performance in LTE networks. In this paper, we consider the challenging problem of interference management in LTE networks with femtocells, propose two frequency reuse patterns and a novel interference avoidance method...
Inter-cell interference coordination is an important question studied in 3GPP for Evolved UTRA (E-UTRA). The objective is to reduce interference and to increase cell-edge throughput and cell throughput. A novel interference mitigation technique, called resource time and frequency joint plan and scheduling (TFJPS), is introduced. Simulation results illustrate that enhanced performance is achieved.
Improving frequency interference is the primary purpose of network planning and optimization in TD_SCDMA. In this paper, a new algorithm to improve frequency interference, named Ant Colony Algorithm (ACA), was put forward to; in addition existent methods were enriched. We described ACA principle, and then a new specific scenario was investigated and introduced into the frequency planning. Afterwards,...
Nowadays, synthetic aperture radar (SAR), with the features of all-weather and day and night imaging, are more and more widely used in military reconnaissance, and therefore, its electronic counter measures (ECM) attracts more and more attention. Due to the particularity of SAR, it is difficult for the traditional jamming techniques to work in interfering SAR. In this paper, the features of SAR ECM...
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