Pub Date : 2015-10-01DOI: 10.1109/BMEI.2015.7401610
Lihui Lan
Aiming at weighted social networks, a random perturbation method based on vectors similarity is proposed. It can protect structures and edge weights of weighted social networks in multiple release scenarios. First, it partitions weighted social networks into t sub-graphs by the segmentation method based on vertex cluster using edge space of graph theory, describes these sub-graphs by vectors, and constructs vector set models of weighted social networks. Then, it adopts weighted Euclidean distance as the metrics of vectors similarity to construct the released candidate sets of t sub-graphs according to the threshold designated by publishers. Finally, it randomly selects vectors from the candidate sets to construct the released vector set, and builds the published weighted social networks based on the released vector set. The proposed method can resist multiple vertex recognition attacks, force the attackers to re-identify in a large result set that the existential probabilities of the vectors are same, and increase the uncertainty of recognition. The experimental results on the actual datasets demonstrate that the proposed method can preserve the security of individuals' privacy, meanwhile it can protect some structure characteristics for social networks analysis and improve the released data utility.
{"title":"Preserving weighted social networks privacy using vectors similarity","authors":"Lihui Lan","doi":"10.1109/BMEI.2015.7401610","DOIUrl":"https://doi.org/10.1109/BMEI.2015.7401610","url":null,"abstract":"Aiming at weighted social networks, a random perturbation method based on vectors similarity is proposed. It can protect structures and edge weights of weighted social networks in multiple release scenarios. First, it partitions weighted social networks into t sub-graphs by the segmentation method based on vertex cluster using edge space of graph theory, describes these sub-graphs by vectors, and constructs vector set models of weighted social networks. Then, it adopts weighted Euclidean distance as the metrics of vectors similarity to construct the released candidate sets of t sub-graphs according to the threshold designated by publishers. Finally, it randomly selects vectors from the candidate sets to construct the released vector set, and builds the published weighted social networks based on the released vector set. The proposed method can resist multiple vertex recognition attacks, force the attackers to re-identify in a large result set that the existential probabilities of the vectors are same, and increase the uncertainty of recognition. The experimental results on the actual datasets demonstrate that the proposed method can preserve the security of individuals' privacy, meanwhile it can protect some structure characteristics for social networks analysis and improve the released data utility.","PeriodicalId":119361,"journal":{"name":"2015 8th International Conference on Biomedical Engineering and Informatics (BMEI)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133564468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-10-01DOI: 10.1109/BMEI.2015.7401544
Tanming Cui, Jingshu Zhang
Ebola hemorrhagic fever (EBHF), caused by Ebola virus (EBOV), is a type of fatal epidemic disease with highly pathogenic rate, highly infection rate, and highly mortality rate which has reemerged in West Africa in February, 2014, leading to a catastrophe in the local and trend of spreading worldwide. In order to prevent the disease from spreading further, it is necessary to have a research of the most dangerous Zaire Ebola virus at the molecular level. Comparing to Zaire EBOV in 1976, the evolution result of the virus in 2014 can instruct people to take steps and have the proper precaution program. The comparison and phylogenic tree methods are able to reveal the degree of the evolution whose processing is conservative at present. With the help of ClustalX, the amount of mutations in different parts of Zaire EBOV nucleotide sequences can be analyzed. Only 3% bases changed in the sequences of 2014. Phylogenic tree can reflect the relationship of the sequences in diverse years, and they are homology. Combining the changes of base with corresponding amino acid, the conservation of the virus can be demonstrated again. It's significant to have a continuous concern of the Zaire virus, as it may have potential evolution.
{"title":"Bioinformatics analysis of Zaire Ebola virus evolution","authors":"Tanming Cui, Jingshu Zhang","doi":"10.1109/BMEI.2015.7401544","DOIUrl":"https://doi.org/10.1109/BMEI.2015.7401544","url":null,"abstract":"Ebola hemorrhagic fever (EBHF), caused by Ebola virus (EBOV), is a type of fatal epidemic disease with highly pathogenic rate, highly infection rate, and highly mortality rate which has reemerged in West Africa in February, 2014, leading to a catastrophe in the local and trend of spreading worldwide. In order to prevent the disease from spreading further, it is necessary to have a research of the most dangerous Zaire Ebola virus at the molecular level. Comparing to Zaire EBOV in 1976, the evolution result of the virus in 2014 can instruct people to take steps and have the proper precaution program. The comparison and phylogenic tree methods are able to reveal the degree of the evolution whose processing is conservative at present. With the help of ClustalX, the amount of mutations in different parts of Zaire EBOV nucleotide sequences can be analyzed. Only 3% bases changed in the sequences of 2014. Phylogenic tree can reflect the relationship of the sequences in diverse years, and they are homology. Combining the changes of base with corresponding amino acid, the conservation of the virus can be demonstrated again. It's significant to have a continuous concern of the Zaire virus, as it may have potential evolution.","PeriodicalId":119361,"journal":{"name":"2015 8th International Conference on Biomedical Engineering and Informatics (BMEI)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116543659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-10-01DOI: 10.1109/BMEI.2015.7401463
Juan Du, Qinghua Huang, P. Ye, Xueli Mao
This paper introduces a new scanning system which collects structural information of tooth surface and enamel-dentine junction. A 3D motorized scanning stage is used to control the moving trajectories of an A-mode transducer so as to acquire the echoes from the surface of a tooth. The enamel in a 3D form will be reconstructed with this system. Despite some discontinuous areas appearing in the 3D image, the 3D representations of human molars well duplicate the real samples and the thickness of enamel can be measured.
{"title":"3D reconstruction of human enamel Ex vivo using high frequency ultrasound","authors":"Juan Du, Qinghua Huang, P. Ye, Xueli Mao","doi":"10.1109/BMEI.2015.7401463","DOIUrl":"https://doi.org/10.1109/BMEI.2015.7401463","url":null,"abstract":"This paper introduces a new scanning system which collects structural information of tooth surface and enamel-dentine junction. A 3D motorized scanning stage is used to control the moving trajectories of an A-mode transducer so as to acquire the echoes from the surface of a tooth. The enamel in a 3D form will be reconstructed with this system. Despite some discontinuous areas appearing in the 3D image, the 3D representations of human molars well duplicate the real samples and the thickness of enamel can be measured.","PeriodicalId":119361,"journal":{"name":"2015 8th International Conference on Biomedical Engineering and Informatics (BMEI)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114839241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In the space environment, a large number of cosmic rays often results in transient faults on on-board computers. And one of the main problems caused by these faults is the control flow errors in the program. This paper proposes a software-implemented control flow error detecting and correcting approach for the linear assembly named DCCLA. DCCLA firstly divides the program into loop blocks and non-loop blocks and assigns the formatted labels for the blocks. Then based on the mechanism of instructions counting, DCCLA inserts counting and comparing instructions into every block, with the purpose of detecting and correcting the control flow errors occurred inter-block and intra-block. In order to correct the data flow errors caused by the control flow errors, DCCLA backups the loop state and live variables. One advantage of DCCLA is that it can be configured flexibly according to the requirement of reliability and performance. The results of fault injection experiment shown that, the average fail rate of programs with DCCLA has decreased to 4.25% with the cost of increasing the average executing time by 41.7% and increasing the average program space by 46.7% DCCLA has the least influence on performance and space overhead and correspondingly higher reliability among three typical control flow detecting algorithms.
{"title":"An efficient approach to detect and correct control-flow errors for linear assembly","authors":"Yuanqiang Qiu, QingPing Tan, Jianjun Xu, Yuxiang Zhao","doi":"10.1109/BMEI.2015.7401567","DOIUrl":"https://doi.org/10.1109/BMEI.2015.7401567","url":null,"abstract":"In the space environment, a large number of cosmic rays often results in transient faults on on-board computers. And one of the main problems caused by these faults is the control flow errors in the program. This paper proposes a software-implemented control flow error detecting and correcting approach for the linear assembly named DCCLA. DCCLA firstly divides the program into loop blocks and non-loop blocks and assigns the formatted labels for the blocks. Then based on the mechanism of instructions counting, DCCLA inserts counting and comparing instructions into every block, with the purpose of detecting and correcting the control flow errors occurred inter-block and intra-block. In order to correct the data flow errors caused by the control flow errors, DCCLA backups the loop state and live variables. One advantage of DCCLA is that it can be configured flexibly according to the requirement of reliability and performance. The results of fault injection experiment shown that, the average fail rate of programs with DCCLA has decreased to 4.25% with the cost of increasing the average executing time by 41.7% and increasing the average program space by 46.7% DCCLA has the least influence on performance and space overhead and correspondingly higher reliability among three typical control flow detecting algorithms.","PeriodicalId":119361,"journal":{"name":"2015 8th International Conference on Biomedical Engineering and Informatics (BMEI)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116703338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-10-01DOI: 10.1109/BMEI.2015.7401569
Xiuhua Wu, Chun-Chih Huang
The paper introduced a new passive aerobic exercise bed. The bed applied ATmega series AVR single-chip microcomputer and acted Atmel Company chip-Mega16 as its core including control circuits of permanent magnet DC motor, infrared remote control circuits, LCD module, caution module, and temperature control module, and so on. The designer used the Altium Designer to design the system, simulate the results, draw the PCB boards, program the C composition according to functions of timer interruption, I/O input-output of the chip mega16 in the condition of ICCV7 for AVR. At last, the new passive aerobic exercise bed realized the precise control in various functions.
{"title":"Developing and designing of a new passive aerobic exercise bed","authors":"Xiuhua Wu, Chun-Chih Huang","doi":"10.1109/BMEI.2015.7401569","DOIUrl":"https://doi.org/10.1109/BMEI.2015.7401569","url":null,"abstract":"The paper introduced a new passive aerobic exercise bed. The bed applied ATmega series AVR single-chip microcomputer and acted Atmel Company chip-Mega16 as its core including control circuits of permanent magnet DC motor, infrared remote control circuits, LCD module, caution module, and temperature control module, and so on. The designer used the Altium Designer to design the system, simulate the results, draw the PCB boards, program the C composition according to functions of timer interruption, I/O input-output of the chip mega16 in the condition of ICCV7 for AVR. At last, the new passive aerobic exercise bed realized the precise control in various functions.","PeriodicalId":119361,"journal":{"name":"2015 8th International Conference on Biomedical Engineering and Informatics (BMEI)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129314930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-10-01DOI: 10.1109/BMEI.2015.7401484
Y. Wang, Qin-yan Xu, Ye Zhang, Xi-zhen Wang, Xi-he Sun, Yue Guan, Yan-ming Ge, Guang-hui Chang
Comparing the imaging features on the ordinary fa-value and high-b-value DWIBS with that on the enhanced imaging, to explore the value of 3.0T MR high-b-value diffusion weighted imaging with background suppression (DWIBS) in detecting the cerebral metastases. 41 patients with cerebral metastases confirmed by clinically and pathologically were collected. All the patients underwent conventional MRI and contrast-enhanced MRI, and DWIBS used two types b-value: ordinary b-value (b=0, 1000s/mm2) and high-b-value (b=3000s/mm2). Evading cystic necrosis area, the signal intensity (SI), background noise and apparent diffusion coefficient (ADC) value of tumor parenchyma and adjacent normal white matter were measured. The averages of signal to noise ratio (SNR), contrast to noise ratio (CNR) and contrast ratio (CR) were computed from these data. The lesion diagnosis accuracy rate of high-b-value DWIBS was better than that of ordinary b-value. On high-b-value DWIBS sequence, the CNR, CR and SI-lesion/ SI-normal of brain metastasis was significant higher than that of ordinary b-value DWIBS sequence (P<;0.05). And the SNR was significant lower than that of ordinary b-value DWIBS sequence (P <; 0.05). The CNR, CR of Contrast-enhanced T1WI was significant higher than that of normal brain tissue (P<;0.05). The ADC value in High-b-value DWIBS sequence was lower than that in ordinary b-value DWIBS sequence (P <; 0.05). Conclusion High-b-value DWIBS sequence showed a great value in detecting cerebral metastases. It was a simple method and could be avoiding potential harm of contrast agent for the human bodies.
对比普通fa值、高b值DWIBS与增强成像的影像特征，探讨3.0T MR背景抑制高b值弥散加权成像(DWIBS)对脑转移灶的检测价值。收集经临床及病理证实的41例脑转移瘤患者。所有患者均行常规MRI和增强MRI检查，DWIBS采用普通b值(b= 0.1000 s/mm2)和高b值(b=3000s/mm2)两种b值类型。避开囊性坏死区，测量肿瘤实质及邻近正常白质的信号强度(SI)、背景噪声及表观扩散系数(ADC)值。根据这些数据计算信噪比(SNR)、噪声对比比(CNR)和对比度(CR)的平均值。高b值DWIBS病变诊断准确率优于普通b值DWIBS。高b值DWIBS序列脑转移灶的CNR、CR、si -病变/ si -正常值均显著高于普通b值DWIBS序列(P< 0.05)。信噪比显著低于普通b值DWIBS序列(P <;0.05)。T1WI增强脑组织的CNR、CR显著高于正常脑组织(P<;0.05)。高b值DWIBS序列的ADC值低于普通b值DWIBS序列(P <;0.05)。结论高b值DWIBS序列对脑转移瘤的检测具有重要价值。该方法简便，可避免造影剂对人体的潜在危害。
{"title":"The value of 3.0T MR high-b-value DWIBS in detecting the cerebral metastases","authors":"Y. Wang, Qin-yan Xu, Ye Zhang, Xi-zhen Wang, Xi-he Sun, Yue Guan, Yan-ming Ge, Guang-hui Chang","doi":"10.1109/BMEI.2015.7401484","DOIUrl":"https://doi.org/10.1109/BMEI.2015.7401484","url":null,"abstract":"Comparing the imaging features on the ordinary fa-value and high-b-value DWIBS with that on the enhanced imaging, to explore the value of 3.0T MR high-b-value diffusion weighted imaging with background suppression (DWIBS) in detecting the cerebral metastases. 41 patients with cerebral metastases confirmed by clinically and pathologically were collected. All the patients underwent conventional MRI and contrast-enhanced MRI, and DWIBS used two types b-value: ordinary b-value (b=0, 1000s/mm2) and high-b-value (b=3000s/mm2). Evading cystic necrosis area, the signal intensity (SI), background noise and apparent diffusion coefficient (ADC) value of tumor parenchyma and adjacent normal white matter were measured. The averages of signal to noise ratio (SNR), contrast to noise ratio (CNR) and contrast ratio (CR) were computed from these data. The lesion diagnosis accuracy rate of high-b-value DWIBS was better than that of ordinary b-value. On high-b-value DWIBS sequence, the CNR, CR and SI-lesion/ SI-normal of brain metastasis was significant higher than that of ordinary b-value DWIBS sequence (P<;0.05). And the SNR was significant lower than that of ordinary b-value DWIBS sequence (P <; 0.05). The CNR, CR of Contrast-enhanced T1WI was significant higher than that of normal brain tissue (P<;0.05). The ADC value in High-b-value DWIBS sequence was lower than that in ordinary b-value DWIBS sequence (P <; 0.05). Conclusion High-b-value DWIBS sequence showed a great value in detecting cerebral metastases. It was a simple method and could be avoiding potential harm of contrast agent for the human bodies.","PeriodicalId":119361,"journal":{"name":"2015 8th International Conference on Biomedical Engineering and Informatics (BMEI)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127656638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-10-01DOI: 10.1109/BMEI.2015.7401575
Wen Wang, Xin-zhuang Dong, T. Zhang
This paper investigates uncertain SDOSs (singular delta operator systems), regarding robust H∞ control and robust H∞ performance analysis. To ensure robust admissibility, we introduce the definition of generalized quadratic admissibility. Through LMI (linear matrix inequality), with the support of a necessary and sufficient condition, an uncertain singular delta operator system is generalized quadratically admissible with a prescribed performance. Then, based on these conclusions, the design problem of a robust H∞ controller is considered for uncertain SDOSs. In terms of an LMI, the existence condition of a suitable robust H∞ controller is derived, and the corresponding design method is also presented through the solution to the LMI. Also, a numerical example is adopted to show the efficiency of the theoretical results in this paper through Matlab-LMI toolbox.
{"title":"Robust H∞ performance control of uncertain SDOSs","authors":"Wen Wang, Xin-zhuang Dong, T. Zhang","doi":"10.1109/BMEI.2015.7401575","DOIUrl":"https://doi.org/10.1109/BMEI.2015.7401575","url":null,"abstract":"This paper investigates uncertain SDOSs (singular delta operator systems), regarding robust H∞ control and robust H∞ performance analysis. To ensure robust admissibility, we introduce the definition of generalized quadratic admissibility. Through LMI (linear matrix inequality), with the support of a necessary and sufficient condition, an uncertain singular delta operator system is generalized quadratically admissible with a prescribed performance. Then, based on these conclusions, the design problem of a robust H∞ controller is considered for uncertain SDOSs. In terms of an LMI, the existence condition of a suitable robust H∞ controller is derived, and the corresponding design method is also presented through the solution to the LMI. Also, a numerical example is adopted to show the efficiency of the theoretical results in this paper through Matlab-LMI toolbox.","PeriodicalId":119361,"journal":{"name":"2015 8th International Conference on Biomedical Engineering and Informatics (BMEI)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127440332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-10-01DOI: 10.1109/BMEI.2015.7401550
Li Qu, Hongbing Cheng, Hai Lin
The population diversity greatly affects the evolutionary efficiency and solution quality of gene expression programming algorithm. Population diversity should be preserved by keeping certain distance between individuals in the population. Edit distance can describe the similarity of individuals well. Crossover is a way to create and maintain the distance of the individuals. In this paper, we propose two edit distance based crossover operators. Experimental results show that the proposed farthest edit distance based crossover operator is able to preserve the diversity of population and solve the optimization problem more efficiently.
{"title":"Edit distance based crossover operator in gene expression programming","authors":"Li Qu, Hongbing Cheng, Hai Lin","doi":"10.1109/BMEI.2015.7401550","DOIUrl":"https://doi.org/10.1109/BMEI.2015.7401550","url":null,"abstract":"The population diversity greatly affects the evolutionary efficiency and solution quality of gene expression programming algorithm. Population diversity should be preserved by keeping certain distance between individuals in the population. Edit distance can describe the similarity of individuals well. Crossover is a way to create and maintain the distance of the individuals. In this paper, we propose two edit distance based crossover operators. Experimental results show that the proposed farthest edit distance based crossover operator is able to preserve the diversity of population and solve the optimization problem more efficiently.","PeriodicalId":119361,"journal":{"name":"2015 8th International Conference on Biomedical Engineering and Informatics (BMEI)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127679447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-10-01DOI: 10.1109/BMEI.2015.7401620
Meng Li, Meijian Zhang, Hongwei Sun
This paper considers the regularized learning schemes based on ℓ1-regularizer and the ε-insensitive pinball loss in a data dependent hypothesis space. The target is the error analysis for the conditional quantile regression learning. Except for continuity and boundedness, the kernel function is not necessary to satisfy any further regularity conditions. The data dependent nature of the algorithm leads to an extra error term called hypothesis error. By concentration inequality with ℓ2-empirical covering numbers and operator decomposition techniques, satisfied error bounds and convergence rates are explicitly derived.
{"title":"Conditional quantile regression with ℓ1-regularization and e-insensitive pinball loss","authors":"Meng Li, Meijian Zhang, Hongwei Sun","doi":"10.1109/BMEI.2015.7401620","DOIUrl":"https://doi.org/10.1109/BMEI.2015.7401620","url":null,"abstract":"This paper considers the regularized learning schemes based on ℓ1-regularizer and the ε-insensitive pinball loss in a data dependent hypothesis space. The target is the error analysis for the conditional quantile regression learning. Except for continuity and boundedness, the kernel function is not necessary to satisfy any further regularity conditions. The data dependent nature of the algorithm leads to an extra error term called hypothesis error. By concentration inequality with ℓ2-empirical covering numbers and operator decomposition techniques, satisfied error bounds and convergence rates are explicitly derived.","PeriodicalId":119361,"journal":{"name":"2015 8th International Conference on Biomedical Engineering and Informatics (BMEI)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125945253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-10-01DOI: 10.1109/BMEI.2015.7401605
Zhijiang Chang, Juan Guo, Hailin Zhang
In this paper we have considered a new resourse sharing approach for wireless access which is based on power assignment strategy, where two sources transmit their information simultaneously to the destination with the different power but use the same sub-band (time-frewquency unit). It discusses the concept of non-orthogonal multiple access (NOMA) which has a power multiplexing at the transmitter side to improve the spectrum efficiency and a successive interference cancellation (SIC) at the receiver side. Multi-antenna techniques have been deeply studied during the past decade to boost system performance by virtue of spatial multiplexing and/or spatial diversity. It is proved that NOMA combined with MIMO techniques can achieve further system performance improvement. In this paper, the SIC structure is designed, and the MMSE-SICand ZF-SIC algorithm is simulated and the effects of different order is anlysised. The conclusion is that the MMSE-SIC algorithm based on SINR ordering has lower complexity and better performance and is more suitable for NOMA.
{"title":"A resourse sharing approach for wireless access","authors":"Zhijiang Chang, Juan Guo, Hailin Zhang","doi":"10.1109/BMEI.2015.7401605","DOIUrl":"https://doi.org/10.1109/BMEI.2015.7401605","url":null,"abstract":"In this paper we have considered a new resourse sharing approach for wireless access which is based on power assignment strategy, where two sources transmit their information simultaneously to the destination with the different power but use the same sub-band (time-frewquency unit). It discusses the concept of non-orthogonal multiple access (NOMA) which has a power multiplexing at the transmitter side to improve the spectrum efficiency and a successive interference cancellation (SIC) at the receiver side. Multi-antenna techniques have been deeply studied during the past decade to boost system performance by virtue of spatial multiplexing and/or spatial diversity. It is proved that NOMA combined with MIMO techniques can achieve further system performance improvement. In this paper, the SIC structure is designed, and the MMSE-SICand ZF-SIC algorithm is simulated and the effects of different order is anlysised. The conclusion is that the MMSE-SIC algorithm based on SINR ordering has lower complexity and better performance and is more suitable for NOMA.","PeriodicalId":119361,"journal":{"name":"2015 8th International Conference on Biomedical Engineering and Informatics (BMEI)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129171001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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