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2014 Wireless Telecommunications Symposium最新文献

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Multimedia content delivery for remote patient monitoring using cognitive radio networks 使用认知无线电网络进行远程病人监测的多媒体内容传送
2014 Wireless Telecommunications Symposium Pub Date : 2014-04-09 DOI: 10.1109/WTS.2014.6835003
Dramane Ouattara, M. Chalouf, O. Hamdi, F. Krief
{"title":"Multimedia content delivery for remote patient monitoring using cognitive radio networks","authors":"Dramane Ouattara, M. Chalouf, O. Hamdi, F. Krief","doi":"10.1109/WTS.2014.6835003","DOIUrl":"https://doi.org/10.1109/WTS.2014.6835003","url":null,"abstract":"Medical multimedia data transmission for remote diagnosis and emergency incident reports will significantly increase in the coming years. Thus, broadband network technologies with ability to be adaptable to user's context and application content must be considered. In this paper, we propose an on-the-fly resource reservation protocol for medical multimedia content delivery in cognitive radio networks. Our approach is based on an appropriate channels switching, that meets the need of end-to-end video quality and throughput requirements for better clinicians analysis. When a channel switching must be performed, an appropriate channel is reserved. This process will also rely on a signalling protocol which allows transmitting traffic characteristics and required network resources to all relay nodes for a best decision-making.","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":"131001049","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
An optimized SIMD implementation of the HEVC/H.265 video decoder HEVC/H的优化SIMD实现。265视频解码器
2014 Wireless Telecommunications Symposium Pub Date : 2014-04-09 DOI: 10.1109/WTS.2014.6835018
M. Bariani, P. Lambruschini, M. Raggio, L. Pezzoni
{"title":"An optimized SIMD implementation of the HEVC/H.265 video decoder","authors":"M. Bariani, P. Lambruschini, M. Raggio, L. Pezzoni","doi":"10.1109/WTS.2014.6835018","DOIUrl":"https://doi.org/10.1109/WTS.2014.6835018","url":null,"abstract":"This paper focuses on the optimization process of the HEVC/H.265 video decoder on suitable architectures for mobile devices. The solutions developed to support the new HEVC/H.265 features are shown together with the achieved performance. The HEVC/H.265 decoder complexity has been evaluated and the most demanding modules have been optimized with Single Instruction Multiple Data (SIMD) instructions. Even though the here described approach has a general meaning, the effectiveness of the proposed solutions has been demonstrated on ARM architecture. In particular, we have selected the Cortex A9 processor with NEON SIMD extension. We will demonstrate that the resulting HEVC/H.265 application can decode in real-time 720p (1280×720) streams at 30 frames per second on a single core ARMv7 at 1.2 GHz.","PeriodicalId":199195,"journal":{"name":"2014 Wireless Telecommunications Symposium","volume":"99 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":"132479949","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: 2
Covert channels in 802.11e wireless networks 802.11e无线网络中的隐蔽信道
2014 Wireless Telecommunications Symposium Pub Date : 2014-04-09 DOI: 10.1109/WTS.2014.6834991
Hong Zhao
{"title":"Covert channels in 802.11e wireless networks","authors":"Hong Zhao","doi":"10.1109/WTS.2014.6834991","DOIUrl":"https://doi.org/10.1109/WTS.2014.6834991","url":null,"abstract":"WLANs (Wireless Local Area Networks) have been widely used in business, school and public areas. The newly deployed 802.11e protocol provides QoS in WLANs. However there are some vulnerability in it. This paper analyzed the 802.11e protocol for QoS support in WLANs and two new covert channels are proposed. These proposed covert channels provide signalling method in order to have reliable communication. The proposed covert channels have no impact on normal traffic pattern, thus it cannot be detected by monitoring traffic pattern.","PeriodicalId":199195,"journal":{"name":"2014 Wireless Telecommunications Symposium","volume":"204 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":"132941327","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: 9
Blind multiuser detection based on the fast relative newton algorithm 基于快速相对牛顿算法的盲多用户检测
2014 Wireless Telecommunications Symposium Pub Date : 2014-04-09 DOI: 10.1109/WTS.2014.6835034
Z. Albataineh, F. Salem
{"title":"Blind multiuser detection based on the fast relative newton algorithm","authors":"Z. Albataineh, F. Salem","doi":"10.1109/WTS.2014.6835034","DOIUrl":"https://doi.org/10.1109/WTS.2014.6835034","url":null,"abstract":"We introduce a multiuser detection algorithm for Direct Sequence Code Division Multiple Access (DS-CDMA) systems that implements a fast relative newton algorithm in a quasi-maximum likelihood (quasi-ML) estimation framework. The symbol signals are estimated based on this quasi-ML criteria at reduced Bit-Error-Rate (BER) and reduced computational load. Specifically, we construct multiuser detectors based on this new algorithm as well as the leading RobustICA and FastICA algorithms. Then, we demonstrate the significant improvements in Bit error rate (BER) and computational speed achieved by this new algorithm in comparative simulation studies.","PeriodicalId":199195,"journal":{"name":"2014 Wireless Telecommunications Symposium","volume":"1 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":"133236313","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: 7
Design considerations for service access integration and optimization beyond LTE-Advanced LTE-Advanced以外的业务接入集成和优化的设计考虑
2014 Wireless Telecommunications Symposium Pub Date : 2014-04-09 DOI: 10.1109/WTS.2014.6835036
Ki-Dong Lee, Sang G. Kim
{"title":"Design considerations for service access integration and optimization beyond LTE-Advanced","authors":"Ki-Dong Lee, Sang G. Kim","doi":"10.1109/WTS.2014.6835036","DOIUrl":"https://doi.org/10.1109/WTS.2014.6835036","url":null,"abstract":"This discussion paper is intended to provide some existing service requirements and some considerations/solutions to them, if any, in one of the most popular global standards, 3GPP Release 12 in the LTE evolution path, so that one can have some views on the benefit of the existing requirements/solutions as well as some views on the limitation of them. This paper selects two examples, Access Control and Proximity Service, to provide some issues to consider through a possible integration of, and optimization of them for foreseeing the necessity of further enhancement of protocols, called Service Access Integration and Optimization in this paper.","PeriodicalId":199195,"journal":{"name":"2014 Wireless Telecommunications Symposium","volume":"21 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":"133504596","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: 0
A low power receiver architecture for Near Field Communication readers 一种用于近场通信读卡器的低功耗接收机结构
2014 Wireless Telecommunications Symposium Pub Date : 2014-04-09 DOI: 10.1109/WTS.2014.6834992
N. Keskin, Huaping Liu
{"title":"A low power receiver architecture for Near Field Communication readers","authors":"N. Keskin, Huaping Liu","doi":"10.1109/WTS.2014.6834992","DOIUrl":"https://doi.org/10.1109/WTS.2014.6834992","url":null,"abstract":"In this paper, a low power and direct-to-digital receiver architecture for Near-Field Communications (NFC) is proposed. There are several blocks used in a typical receiver part of the NFC reader; such as a mixer, an envelope detector (or a low pass filter), a Low Pass Analog-to-Digital Converter (LP-ADC), and finally a Phase-Locked-Loop (PLL). These four blocks, especially PLL and ADC, are power hungry because of over-sampling required to obtain reasonable Signal-to-Noise-Ratio (SNR) for a NFC device. The proposed receiver architecture uses a Band-Pass (BP) Delta-Sigma ADC and trimmed crystal oscillator in order to obtain direct conversion of the received NFC signal with its carrier.","PeriodicalId":199195,"journal":{"name":"2014 Wireless Telecommunications Symposium","volume":"5 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":"125353032","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
Throughput analysis of channel surfing in jammed single-hop wireless networks 干扰单跳无线网络中信道冲浪的吞吐量分析
2014 Wireless Telecommunications Symposium Pub Date : 2014-04-09 DOI: 10.1109/WTS.2014.6834998
Peng Wang, B. Henz
{"title":"Throughput analysis of channel surfing in jammed single-hop wireless networks","authors":"Peng Wang, B. Henz","doi":"10.1109/WTS.2014.6834998","DOIUrl":"https://doi.org/10.1109/WTS.2014.6834998","url":null,"abstract":"We develop a theoretical approach to derive system throughput for single-hop wireless networks where U users share a spectrum set θU of n independent channels, and J jammers attack the system by selecting channels from a spectrum set θJ of N independent channels while θU ⊆θJ. Users and jammers follow the given policies to randomly select channels at each time slot. The whole system can be modeled as a Markov chain. The key point is to derive the transition probability matrix and obtain the stationary distribution. Then, the theoretical system throughput can be computed straightforwardly. Another interesting problem is to study the system failure probability for the scenario where each user pair has multiple links. The network model is modified as: m user pairs share a spectrum set θU and each user pair has c links. System failure happens when at least one user pair fails all of its links. A two-step approach is developed to compute the system failure probability for the modified model. Numerical experiments are used to validate theoretical results.","PeriodicalId":199195,"journal":{"name":"2014 Wireless Telecommunications Symposium","volume":"26 3 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":"126051934","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: 2
Modeling and simulation of energy efficient enhancements for IEEE 802.15.4e DSME IEEE 802.15.4e DSME能效增强的建模和仿真
2014 Wireless Telecommunications Symposium Pub Date : 2014-04-09 DOI: 10.1109/WTS.2014.6835017
S. Capone, R. Brama, F. Ricciato, G. Boggia, A. Malvasi
{"title":"Modeling and simulation of energy efficient enhancements for IEEE 802.15.4e DSME","authors":"S. Capone, R. Brama, F. Ricciato, G. Boggia, A. Malvasi","doi":"10.1109/WTS.2014.6835017","DOIUrl":"https://doi.org/10.1109/WTS.2014.6835017","url":null,"abstract":"Wireless sensor networks are drawing much attention as an effective means to enable the Internet of Things. In this context, energy efficiency is an important requirement in applications where battery-powered sensing devices are exploited. Battery power saving can be addressed using many techniques, concerning different layers of the OSI model. This work addresses energy consumption in MAC protocols from a transceiver usage perspective. We first describe a set of protocols that includes IEEE 802.15.4 and IEEE 802.15.4e DSME. Then, we analyze their energy consumption and propose a set of Enhancements for Low-Power Instrumentation DSME Applications. Finally, given a wireless network topology, we compare the performance of the above mentioned protocols by simulations. Obtained results show that, for end devices, the proposed approach allows an energy consumption reduction up to a factor of 9 with respect to the IEEE 802.15.4, while enabling for higher throughput, and up to a factor of 7 with regard to native IEEE 802.15.4e DSME.","PeriodicalId":199195,"journal":{"name":"2014 Wireless Telecommunications Symposium","volume":"77 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":"127109079","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: 23
WiFi iLocate: WiFi based indoor localization for smartphone WiFi iLocate:基于WiFi的智能手机室内定位
2014 Wireless Telecommunications Symposium Pub Date : 2014-04-09 DOI: 10.1109/WTS.2014.6835016
Xiang He, Shirin Badiei, D. Aloi, Jia Li
{"title":"WiFi iLocate: WiFi based indoor localization for smartphone","authors":"Xiang He, Shirin Badiei, D. Aloi, Jia Li","doi":"10.1109/WTS.2014.6835016","DOIUrl":"https://doi.org/10.1109/WTS.2014.6835016","url":null,"abstract":"In recent years, the increasing popularity of smartphones has promoted the development of location-aware applications. However, highly accurate indoor localization by smartphones remains an open problem. In this paper, we present WiFi iLocate - a system that can help track the location and movement of a smartphone user in indoor environments. The system applies Gaussian process regression to train the collected WiFi received signal strength (RSS) dataset, and particle filter for the estimation of the smartphone user's location and movement. Simulations were conducted in MATLAB to test the performance and provide more insights of the proposed approach. The experiments carried with an iOS device in typical library environment illustrate that our system is an accurate, real-time, press-to-go system.","PeriodicalId":199195,"journal":{"name":"2014 Wireless Telecommunications Symposium","volume":"8 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":"130882524","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: 18
A novel methodology of data analytics and modeling to evaluate LTE network performance 一种新的数据分析和建模方法来评估LTE网络的性能
2014 Wireless Telecommunications Symposium Pub Date : 2014-04-09 DOI: 10.1109/WTS.2014.6835006
Ouyang Ye, M. Fallah, Sanqing Hu, Yong Ren Yong, Y. Hu, Zhichang Lai, Mingxin Guan, Wenyuan Lu
{"title":"A novel methodology of data analytics and modeling to evaluate LTE network performance","authors":"Ouyang Ye, M. Fallah, Sanqing Hu, Yong Ren Yong, Y. Hu, Zhichang Lai, Mingxin Guan, Wenyuan Lu","doi":"10.1109/WTS.2014.6835006","DOIUrl":"https://doi.org/10.1109/WTS.2014.6835006","url":null,"abstract":"Big Data and LTE are two hot topics in their respective field. Is there a synergy effect between the two techniques? Traditionally various simulation based approaches are developed to study wireless network performance. However simulation has its own limitations. In this paper, the authors develop a methodology of data analytics and modeling to evaluate LTE network performance based upon traffic measurements and service growth trends. The overall model is finally validated and shows high accuracy, robustness, and reliability.","PeriodicalId":199195,"journal":{"name":"2014 Wireless Telecommunications Symposium","volume":"104 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":"134041309","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: 11
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