2014 Wireless Telecommunications Symposium最新文献_第4页

An innovative wireless Cardiac Rhythm Management (iCRM) system 创新的无线心律管理(iCRM)系统

2014 Wireless Telecommunications Symposium Pub Date : 2014-04-09 DOI: 10.1109/WTS.2014.6835035

G. Arrobo, Calvin A. Perumalla, Stanley B. Hanke, T. Ketterl, P. Fabri, R. Gitlin

引用次数: 2

A multi-channel cooperative clustering-based MAC protocol for VANETs 一种基于多通道协同集群的vanet MAC协议

2014 Wireless Telecommunications Symposium Pub Date : 2014-04-09 DOI: 10.1109/WTS.2014.6835009

F. Yang, Yuliang Tang, Lianfeng Huang

引用次数: 22

Partial sensing coverage and deployment efficiency in wireless directional sensor networks 无线定向传感器网络的部分传感覆盖与部署效率

2014 Wireless Telecommunications Symposium Pub Date : 2014-04-09 DOI: 10.1109/WTS.2014.6835029

Yun Wang, Zhifeng Xiao, Yanwei Wu, Anthony G. Stephan, J. M. Siegers

{"title":"Partial sensing coverage and deployment efficiency in wireless directional sensor networks","authors":"Yun Wang, Zhifeng Xiao, Yanwei Wu, Anthony G. Stephan, J. M. Siegers","doi":"10.1109/WTS.2014.6835029","DOIUrl":"https://doi.org/10.1109/WTS.2014.6835029","url":null,"abstract":"Unlike most existing works that focus on a conventional omni-directional sensor network, we investigate the sensing coverage problem in a directional sensor network through mathematically modeling, analysis, and computer-based simulation evaluation. Research results show: 1) A factor of (2π/θ) more sensors will be required to provide the same sensing coverage in a θ(θ <; 2π)-directional sensor network with respect to its counterpart omni-directional sensor network; 2) Employing application-tolerable partial sensing coverage is of significant importance for directional sensor network implementation in practice, as a noticeable fraction of sensors can be saved; For example, 50% and 66.67% sensors can be saved for 90% sensing coverage as compared to 99% and 99.9% sensing coverage respectively under the same network settings; 3) The node saving rate of employing partial sensing coverage α(α <; 1) with respect to full sensing coverage f(f ≈1), derived as ηα = ln(1-α)-ln(1-f)/ln(1-f), is solely determined by the sensing coverage requirement in an application and is independent of sensor features. Simulation results validate the modeling, derivation, and analysis.","PeriodicalId":199195,"journal":{"name":"2014 Wireless Telecommunications Symposium","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125829075","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}

引用次数: 4

Cognitive RAdio sensing based on joint distribution of pseudo WIShart matrix Eigenvalues 基于伪WIShart矩阵特征值联合分布的认知无线电传感

2014 Wireless Telecommunications Symposium Pub Date : 2014-04-09 DOI: 10.1109/WTS.2014.6834997

Usama Y. Mohamad, D. Dahlhaus

引用次数: 6

Patterns of effective medication adherence: The role of wireless interventions 有效的药物依从模式:无线干预的作用

2014 Wireless Telecommunications Symposium Pub Date : 2014-04-09 DOI: 10.1109/WTS.2014.6835015

N. Singh, U. Varshney

{"title":"Patterns of effective medication adherence: The role of wireless interventions","authors":"N. Singh, U. Varshney","doi":"10.1109/WTS.2014.6835015","DOIUrl":"https://doi.org/10.1109/WTS.2014.6835015","url":null,"abstract":"Medication non-adherence is a key and growing public health concern. About half of the annual prescriptions dispensed in the United States are not taken as prescribed. Most of the studies focus on improving medication adherence using interventions, including interventions based on wireless and mobile technologies. However, these studies measure only average medication adherence. This is helpful in understanding the high and low level of adherence between patients. However, the patterns of adherence are likely to have significant impact on the effectiveness of medications and outcomes. In this paper, we apply wireless based interventions to improve the patterns of effective medication adherence. The interventions include simple reminders, persistent reminders, and context aware reminders. As part of performance evaluation, we study if the change in adherence pattern due to reminders lead to higher or lower effective adherence. Our results show that (1) reminders can improve the pattern and average value of medication adherence, but may lead to undesirable drug events; (2) context-aware reminders can improve both the pattern and average value of adherence without increasing the undesirable drug events. The results have significant implications for medication adherence and interventions for healthcare system and researchers studying adherence and interventions.","PeriodicalId":199195,"journal":{"name":"2014 Wireless Telecommunications Symposium","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132590767","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}

引用次数: 13

Performance improvement of decode-and-forward relay systems using dual polarized antenna 双极化天线对译码转发中继系统性能的改进

2014 Wireless Telecommunications Symposium Pub Date : 2014-04-09 DOI: 10.1109/WTS.2014.6835007

M. Ilic-Delibasic, M. Pejanović-Djurišić

{"title":"Performance improvement of decode-and-forward relay systems using dual polarized antenna","authors":"M. Ilic-Delibasic, M. Pejanović-Djurišić","doi":"10.1109/WTS.2014.6835007","DOIUrl":"https://doi.org/10.1109/WTS.2014.6835007","url":null,"abstract":"This paper studies performance of two-hop decode-and-forward (DF) relay system with the implemented polarization receive diversity system at the destination terminal. Communication between the source and the relay is assumed to be over the Ricean fading channel, while two correlated and non-identical Ricean fading channels are assumed for the relay to destination link. Maximal ratio combining (MRC) of the received signals is performed at the destination, and no direct communication between the source and the destination is considered. In order to determine the level of improvement introduced through the implementation of polarization diversity, performances of the considered system are compared with the standard DF relay system with single antenna terminals. The obtained results show that, using polarization diversity, the same BER (Bit Error Rate) values can be obtained with significantly lower SNR (Signal to Noise Ratio), despite a certain level of correlation and power unbalance between the diversity branches. In that manner, compared to the system with no diversity, the total needed transmit power for achieving the same level of system performances is reduced, and thus more energy efficient communication is enabled.","PeriodicalId":199195,"journal":{"name":"2014 Wireless Telecommunications Symposium","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127559022","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}

引用次数: 1

A New anti-collision protocol for RFID networks 一种新的RFID网络防碰撞协议

2014 Wireless Telecommunications Symposium Pub Date : 2014-04-09 DOI: 10.1109/WTS.2014.6834996

F. Baloch, R. Pendse

引用次数: 1

CBA-EVT: A traffic-adaptive energy-efficient MAC protocol for wireless sensor networks CBA-EVT:一种流量自适应的无线传感器网络节能MAC协议

2014 Wireless Telecommunications Symposium Pub Date : 2014-04-09 DOI: 10.1109/WTS.2014.6835012

Te-Li Wang, Jung-Chun Kao, S. Ciou

引用次数: 2

CrowdHelp: M-Health application for emergency response improvement through crowdsourced and sensor-detected information CrowdHelp:通过众包和传感器检测信息改进应急响应的移动健康应用程序

2014 Wireless Telecommunications Symposium Pub Date : 2014-04-09 DOI: 10.1109/WTS.2014.6835005

Liliya I. Besaleva, A. Weaver

{"title":"CrowdHelp: M-Health application for emergency response improvement through crowdsourced and sensor-detected information","authors":"Liliya I. Besaleva, A. Weaver","doi":"10.1109/WTS.2014.6835005","DOIUrl":"https://doi.org/10.1109/WTS.2014.6835005","url":null,"abstract":"Preventing natural disasters is beyond our capabilities, but providing better information to disaster management professionals (DMPs) and affected persons is not. Current disaster management systems get their primary inputs from 911 calls and from observations of first responders. Typically such interactions do not follow a prescribed scenario and they do not produce uniform results. Additionally, this process is slow and cumbersome and subject to transcription error [2][12]. We propose an expanded information gathering and distribution tool which uses crowdsourcing to deliver more accurate information to disaster managers more quickly than can be done with existing systems. Using our system, CrowdHelp, people within the radius of a natural disaster are able to send text, pictures, videos, locations, and descriptions of what they see. Our software analyzes the data received, authenticates the sender, removes inputs that are likely to be malicious, clusters reports by type, urgency, or location as desired by the human operator, then displays the results on a map along with suggestions to the operator concerning what type of help is most needed. CrowdHelp also collects additional sensor information from smartphones for future analysis by professional disaster management organizations.","PeriodicalId":199195,"journal":{"name":"2014 Wireless Telecommunications Symposium","volume":"12 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125720292","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}

引用次数: 12

Performance analysis of AF cooperative networks with time-varying links: Error rate and capacity 时变链路AF协同网络的性能分析:错误率和容量

2014 Wireless Telecommunications Symposium Pub Date : 2014-04-09 DOI: 10.1109/WTS.2014.6835001

Yazid M. Khattabi, M. Matalgah

{"title":"Performance analysis of AF cooperative networks with time-varying links: Error rate and capacity","authors":"Yazid M. Khattabi, M. Matalgah","doi":"10.1109/WTS.2014.6835001","DOIUrl":"https://doi.org/10.1109/WTS.2014.6835001","url":null,"abstract":"In this paper, we consider an M-relay amplify-and-forward (AF) cooperative system with maximal ratio combining (MRC) at the destination and investigate the effects of both the mobile cooperating-nodes speeds and the receivers' channel state information (CSI) estimation rates on the system performance. By CSI estimation rates we mean how much the receivers' tracking loops are fast to estimate the channel gains over the individual time slots. The fading links are considered to be frequency-flat time-varying Rayleigh fading and modeled by a first-order autoregressive process (AR1). General closed-form approximate expressions are derived for the bit error rate and the system Shannon capacity, which are further verified through Monte Carlo simulations. These expressions are valid for time-varying as well as quasi-static fading links for both low and high CSI estimation rates. Furthermore, we analytically show that, due to high speeds of the cooperating-nodes and/or constrained CSI estimation rates, both of the error rate and the capacity suffer from asymptotic limits. These limits could be completely eliminated by a well-designed fast tracking loops at the receivers even though the speeds of the mobile nodes are relatively high.","PeriodicalId":199195,"journal":{"name":"2014 Wireless Telecommunications Symposium","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126083420","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}

引用次数: 13