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| 1 | Multi-Strategy Dynamic Spectrum Access in Cognitive Radio Networks: Modeling, Analysis and Optimization显示文摘Dynamic spectrum access(DSA) based on cognitive radios(CR) technique is an effective approach to address the 'spectrum scarcity' issue. However, traditional CR-enabled DSA system employs only single DSA strategy, which might not be suited to the dynamic network environment. In this paper, we propose a multi-strategy DSA(MS-DSA) system, where the primary and the secondary system share spectrum resources with multiple DSA strategies simultaneously. To analyze the performance of the proposed MS-DSA system, we model it as a continuous-time Markov chain(CTMC) and derive the expressions to compute the corresponding performance metrics. Based on this, we define a utility function involving the concerns of effective throughput, interference quantity on primary users, and spectrum leasing cost. Two optimization schemes, named as spectrum allocation and false alarm probability selection, are proposed to maximize the utility function. Finally, numerical simulations are provided to validate our analysis and demonstrate that the performance can be significantly improved caused by virtues of the proposed MS-DSA system. | Yi Yang Qinyu Zhang Ye Wang Takahiro Emoto Masatake Akutagawa Shinsuke Konaka | 2019 | China Communications2019，16，3： | 9 |
| 2 | Adaptive Resources Allocation Algorithm Based on Modified PSO for Cognitive Radio System显示文摘Radio spectrum has become a rare resource due to the rapid development of wireless communication technique. Cognitive radio is one of important techniques to deal with this radio spectrum problem. But the resource allocation in cognitive radio also has its own issues, such as the flexibility of the allocation algorithm, the performance of resource allocation, and so on. In order to increase the flexibility of the allocation algorithm for cognitive radio, more and more researches are focusing on the evolutionary algorithms, such as genetic algorithm(GA), particle swarm optimization(PSO). Evolutionary algorithm can greatly improve the flexibility of the allocation algorithm for cognitive radio system in different communication scenarios, but the performances are relatively lower than the original mathematical methods. So in this paper, we proposed an adaptive resource allocation algorithm based on modified PSO for cognitive radio system to solve these problems. Modified particle swarm optimization(Modified PSO) has both genetic algorithm(GA) and particle swarm optimization(PSO)’s updating processes which makes this modified PSO overcame PSO’s own disadvantages and keep advantages. Simulation results showed our proposed algorithm has enough flexibility to meet cognitive radio systems’ requirements, and also has a better performance than original PSO. | Yi Yang Qinyu Zhang Ye Wang Takahiro Emoto Masatake Akutagawa Shinsuke Konaka | 2019 | China Communications2019，16，5： | 9 |
| 3 | Effect of adiponectin on carotid arterial stiffness in type 2 diabetic patients treated with pioglitazone and metformin显示文摘 | Takahiro Araki Masanori Emoto Megumi Teramura Hisayo Yokoyama Katsuhito Mori Sawako Hatsuda Takaaki Maeno Kayo Shinohara Hidenori Koyama Tetsuo Shoji Masaaki Inaba Yoshiki Nishizawa | 2006 | Metabolism2006，，8： | 5 |
| 4 | Salvage Gastrectomy After Intravenous and Intraperitoneal Paclitaxel (PTX) Administration with Oral S-1 for Peritoneal Dissemination of Advanced Gastric Cancer with Malignant Ascites显示文摘 | Joji Kitayama Hironori Ishigami Hironori Yamaguchi Hiroharu Yamashita Shigenobu Emoto Shoich Kaisaki Toshiaki Watanabe | 2014 | Annals of Surgical Oncology2014，，2： | 2 |
| 5 | Annexin II overexpression is correlated with poor prognosis in human gastric carcinoma显示文摘 | Emoto K Sawada H Yamada Y | 2001 | Anticancer Res2001，21，2： | 2 |
| 6 | Annexin II overexpression correlates with stromal tenascin-C overexpression: a prognostic marker in colorectal carcinoma显示文摘 | Emoto K Yamada Y Sawada H | 2001 | Cancer2001，92，6： | 2 |
| 7 | The association of plasma adiponectin level with carotid arterial stiffness显示文摘 | Takahiro Araki Masanori Emoto Hisayo Yokoyama Takaaki Maeno Sawako Hatsuda Katsuhito Mori Hidenori Koyama Tetsuo Shoji Masaaki Inaba Yoshiki Nishizawa | 2006 | Metabolism2006，，5： | 2 |
| 8 | Clinical significance of CA125 and CA72-4 in gastric cancer with peritoneal dissemination显示文摘 | Shigenobu Emoto Hironori Ishigami Hiroharu Yamashita Hironori Yamaguchi Shoichi Kaisaki Joji Kitayama | 2012 | Gastric Cancer2012，，2： | 2 |
| 9 | Steering and suspension system of a full car model using fuzzy reasoning based on single input rule modules显示文摘 | Yoshimura T Emoto Y | 2003 | International Journal of Vehicle Autonomous Systems2003，2，1： | 1 |
| 10 | Endothelial cell-derived endothelin-1 promotes cardiac fibrosis in diabetic hearts through stimulation of endothelial to mesenchymal transition 显示文摘 | WIDYANTORO B EMOTO N NAKAYAMA K | 2010 | Circulation2010，121，22： | 1 |
| 11 | Effect of adiponectin on ca rotid arterial stiffness in type 2 diabetic patients treated with pio- glitazone and metformin显示文摘 | Araki T Emoto M Teramura M | 2012 | Metabolism2012，55，8： | 1 |
| 12 | Intracellular Bacterial Infection and Invariant NKT Cells显示文摘 | Masashi Emoto Yoshiko Emoto | 2009 | Yonsei Med2009，50，1： | 1 |
| 13 | Two factors in visual fatigue caused by stereoscopic HDTV images 显示文摘 | Yano S Emoto M Mitsuhashi T | 2004 | Displays2004，25，4： | 1 |
| 14 | The combination of Jun N-terminal kinase inhibitor and TNP-470 blocks carcinosarcoma-induced endothelial cell tube formation in a synergistic manner显示文摘 | Miura S Emoto M Matsuo Y | 2005 | Cancer Lett2005，220，1： | 1 |
| 15 | Characteristics ofcloned cells of mixed mullerian tumor of human uterus carci-noma cells shown myogenic differentiation in vitro 显示文摘 | Emoto M Iwaski H Kikuchi M | 1993 | Canc-er1993，71，： | 1 |
| 16 | Advanced atherosclerosis in predialysis patients with chronic renal failure 显示文摘 | Shoji T Emoto M Tabata T | 2002 | Kidney Int2002，61，6： | 1 |
| 17 | The prognostic significance of overexpression of the decoy receptor for Fas ligand (DcR3) in patients with gastric carcinomas 显示文摘 | Takahama Y Yamada Y Emoto K | 2002 | Gastric Cancer2002，5，2： | 1 |
| 18 | Association of serum fetuin-A with carotid arterial stiffness 显示文摘 | Mori K Emoto M Araki T | 2007 | Clin Endocrinol (Oxf)2007，66，2： | 1 |
| 19 | analysis of the factors associated with tc-99m pertechnetate uptake in thyrotoxicosis and Graves disease显示文摘 | Kidokoro-kunii Y Emoto N Cho K | 2006 | Oikawa S2006，73，1： | 1 |
| 20 | Differences in the angiogenesis of benign and malignant ovarian tumors, demonstrated by analyses of color Doppler ultrasound, immunohistochemistry, and microvessel density 显示文摘 | Emoto M Iwasaki H Mimura K | 1997 | Cancer1997，80，： | 1 |
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