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2015 Wireless Telecommunications Symposium (WTS)最新文献

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Using long samples in subjective testing of voice transmission quality in IP network 利用长样本对IP网络语音传输质量进行主观测试
2015 Wireless Telecommunications Symposium (WTS) Pub Date : 2015-04-15 DOI: 10.1109/WTS.2015.7117260
Oldrich Slavata, P. Souček, J. Holub
{"title":"Using long samples in subjective testing of voice transmission quality in IP network","authors":"Oldrich Slavata, P. Souček, J. Holub","doi":"10.1109/WTS.2015.7117260","DOIUrl":"https://doi.org/10.1109/WTS.2015.7117260","url":null,"abstract":"This paper deals with problems of speech transmission quality measurement in TCP/IP networks. It focuses on problems caused by the inaccuracy of current methods for measuring the quality degradation caused by packet loss and jitter. The proposed solution is to use longer samples for listening tests. This article compares three evaluation methods for listening tests.","PeriodicalId":300798,"journal":{"name":"2015 Wireless Telecommunications Symposium (WTS)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124817504","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
The impact of integrated wireless and mobile communication technologies on the corporate world 综合无线和移动通信技术对企业界的影响
2015 Wireless Telecommunications Symposium (WTS) Pub Date : 2015-04-15 DOI: 10.1109/WTS.2015.7117242
Barbara J. Durkin, I. Lokshina
{"title":"The impact of integrated wireless and mobile communication technologies on the corporate world","authors":"Barbara J. Durkin, I. Lokshina","doi":"10.1109/WTS.2015.7117242","DOIUrl":"https://doi.org/10.1109/WTS.2015.7117242","url":null,"abstract":"This paper validates the progression and expected trends of integrated wireless and mobile communication technologies. Currently, integrated wireless and mobile communication technologies have allowed for high quality end-user experience with acceptable level of usage and efficiency in business organizations. Forthcoming mobile broadband life creates new norms and expectations for end-users from the next business generation, who can utilize integrated wireless and mobile technologies in their full potential. Several scenarios from different domains illustrate the impact of integrated wireless and mobile communication technologies on the corporate world. The models and scenarios show that the power of integrated wireless and mobile technologies is certainly in several orders of magnitude greater than the simple sum of their separate individual impacts.","PeriodicalId":300798,"journal":{"name":"2015 Wireless Telecommunications Symposium (WTS)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114932278","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
Topology refresh data forwarding protocol for opportunistic networks 机会网络拓扑刷新数据转发协议
2015 Wireless Telecommunications Symposium (WTS) Pub Date : 2015-04-15 DOI: 10.1109/WTS.2015.7117244
P. Lau
{"title":"Topology refresh data forwarding protocol for opportunistic networks","authors":"P. Lau","doi":"10.1109/WTS.2015.7117244","DOIUrl":"https://doi.org/10.1109/WTS.2015.7117244","url":null,"abstract":"Consider the opportunistic network application scenario in which mobile node users socialize with nearby users of common interest, but there exists no pre-established session by which users register or de-register their presence. As nodes are dynamically joining and leaving the network, how a node discovers any newly joined nodes or knows when to release conversations from nodes who have left the network. In this paper, we propose to build a complete topology of end-to-end paths and periodically refresh it, to thereby erase all the connectivity and node position history, to adapt to the dynamic changing nature of opportunistic networks. We call it Topology Refresh Protocol (TRP). TRP integrates the solution to the questions with data forwarding. It is lightweight and efficient that requires no path break detection and repair as required by on-demand routing, no complex route calculations as in probabilistic routing, and no duplication of messages as used in the class of epidemic routing. We studied the TRP performance in terms of overhead, delay, and acceptance rate by computer simulations and found that TRP outperforms the AODV and ERP protocols.","PeriodicalId":300798,"journal":{"name":"2015 Wireless Telecommunications Symposium (WTS)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114558286","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
Full-duplex communications with the use of parasitic array radiators 全双工通信与使用寄生阵列散热器
2015 Wireless Telecommunications Symposium (WTS) Pub Date : 2015-04-15 DOI: 10.1109/WTS.2015.7117271
K. Maliatsos, P. Vasileiou, A. Kanatas
{"title":"Full-duplex communications with the use of parasitic array radiators","authors":"K. Maliatsos, P. Vasileiou, A. Kanatas","doi":"10.1109/WTS.2015.7117271","DOIUrl":"https://doi.org/10.1109/WTS.2015.7117271","url":null,"abstract":"Full duplex (FD) communications have been brought into the center of the research activity as an effective way to increase spectral efficiency. This study introduces a novel antenna cancellation technique with the use of a parasitic antenna array at the FD transceiver. Elaborate Multiple-Input-Multiple-Output (MIMO) techniques that use parasitic arrays, such as Beamspace MIMO, have been recently proposed. These techniques use the variable reactances of the loads of the parasitic elements to increase channel capacity with the use of compact antennas and limited number of Radio Frequency (RF) chains. This study proposes a technique that can achieve high isolation of the transmitting and receiving elements of the FD transceiver and simultaneously beamform in order to improve signal reception with dynamic adaptation of the parasitic element load values. The performance of the technique was evaluated with simulation. Results show that the use of parasitic arrays in FD transceivers can drastically reduce the self-inflicted interference, improve overall reception and provide radio channels with FD operation support.","PeriodicalId":300798,"journal":{"name":"2015 Wireless Telecommunications Symposium (WTS)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116507002","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
On the accuracy of in-body TOA ranging inside the gastrointestinal tract using carrier frequency 基于载波频率的胃肠道内TOA测距精度研究
2015 Wireless Telecommunications Symposium (WTS) Pub Date : 2015-04-15 DOI: 10.1109/WTS.2015.7117289
Mingda Zhou, K. Pahlavan
{"title":"On the accuracy of in-body TOA ranging inside the gastrointestinal tract using carrier frequency","authors":"Mingda Zhou, K. Pahlavan","doi":"10.1109/WTS.2015.7117289","DOIUrl":"https://doi.org/10.1109/WTS.2015.7117289","url":null,"abstract":"Body area network is now on its speedway of development, which stresses the importance of in-body localization. Wireless capsule endoscopy, one major application in BAN, helps physicians to work out better treatments and inspections of gastrointestinal tract if wireless capsule endoscope could be more accurately localized. In this paper we first propose the CRLB of TOA ranging inside homogeneous tissue as performance guideline and compare the accuracy of different TOA ranging methods inside homogeneous tissue. Then, simulations inside non-homogeneous tissues are conducted to investigate the impact of non-homogeneity on TOA ranging accuracy qualitatively and quantitatively.","PeriodicalId":300798,"journal":{"name":"2015 Wireless Telecommunications Symposium (WTS)","volume":"111 3S 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122059070","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: 5
Buffer overflow simulation in self-similar queuing networks with finite buffer capacity accelerated using RESTART/LRE 有限缓冲容量自相似排队网络的缓冲区溢出仿真
2015 Wireless Telecommunications Symposium (WTS) Pub Date : 2015-04-15 DOI: 10.1109/WTS.2015.7117238
I. Lokshina, Suny Oneonta, Evan Schiele
{"title":"Buffer overflow simulation in self-similar queuing networks with finite buffer capacity accelerated using RESTART/LRE","authors":"I. Lokshina, Suny Oneonta, Evan Schiele","doi":"10.1109/WTS.2015.7117238","DOIUrl":"https://doi.org/10.1109/WTS.2015.7117238","url":null,"abstract":"The paper recommends an approach to estimate effectively the probability of buffer overflow in self-similar queuing networks with finite buffer capacity. Simulations with stochastic traffic source models are conducted. A new efficient algorithm, based on the RESTART method with the Limited Relative Error (LRE) technique, is developed and applied to accelerate the buffer overflow simulation in a finite buffer single server model under long-range dependent self-similar traffic load with different buffer sizes. Numerical examples and simulation results are shown.","PeriodicalId":300798,"journal":{"name":"2015 Wireless Telecommunications Symposium (WTS)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131450012","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
Relay selection in multiple clustered relay networks 多集群中继网络中的中继选择
2015 Wireless Telecommunications Symposium (WTS) Pub Date : 2015-04-15 DOI: 10.1109/WTS.2015.7117254
Woo Suk Kim, W. Kim, Hae Sol Lee, Il Kim, Dong In Kim, Seokki Kim, Kwangae Lim
{"title":"Relay selection in multiple clustered relay networks","authors":"Woo Suk Kim, W. Kim, Hae Sol Lee, Il Kim, Dong In Kim, Seokki Kim, Kwangae Lim","doi":"10.1109/WTS.2015.7117254","DOIUrl":"https://doi.org/10.1109/WTS.2015.7117254","url":null,"abstract":"We consider the downlink of a realistic cellular network composed of multiple clusters, each of which includes multiple relays and a destination terminal. In this scenario, the interference among the clusters is a critical issue, affecting the end-to-end performance of the system significantly. Considering the inter-cluster interference, we propose optimal and suboptimal relay selection schemes to maximize the sum rate of the network. The first algorithm is a truly optimal network-wise relay selection scheme which provides the ultimate performance upper bound. However, the computational complexity and the signaling overhead involved with the optimal scheme are fairly high. Addressing the issues, we propose a suboptimal cluster-wise scheme with a much less computational complexity and signaling overhead. Numerical results demonstrate that the proposed algorithms provide excellent performance.","PeriodicalId":300798,"journal":{"name":"2015 Wireless Telecommunications Symposium (WTS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131407511","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
Analysis of an Adaptive Modulation and Coding scheme with HARQ for TCP traffic 基于HARQ的TCP流量自适应调制编码方案分析
2015 Wireless Telecommunications Symposium (WTS) Pub Date : 2015-04-15 DOI: 10.1109/WTS.2015.7117239
O. Ozturk, N. Akar
{"title":"Analysis of an Adaptive Modulation and Coding scheme with HARQ for TCP traffic","authors":"O. Ozturk, N. Akar","doi":"10.1109/WTS.2015.7117239","DOIUrl":"https://doi.org/10.1109/WTS.2015.7117239","url":null,"abstract":"In this paper, we analyze the aggregate TCP throughput performance of a wireless link utilizing Active Queue Management (AQM) and an Adaptive Modulation and Coding (AMC) scheme with Hybrid ARQ (HARQ) based on the probability of failure in the first transmission attempt. We assume packets arriving out-of-order at the wireless receiver due to random retransmissions are resequenced before being released to the network. For this reason, an approximate model for the delay experienced at the resequencing buffer is also presented. In the light of the results obtained from the presented analysis, we propose a threshold for the aforementioned probability of failure making the investigated AMC scheme work at an overall performance close to that of the optimum policy.","PeriodicalId":300798,"journal":{"name":"2015 Wireless Telecommunications Symposium (WTS)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130111122","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
Energy-cost-distortion optimization for delay-sensitive M-health applications 延迟敏感移动医疗应用的能源成本失真优化
2015 Wireless Telecommunications Symposium (WTS) Pub Date : 2015-04-15 DOI: 10.1109/WTS.2015.7117270
Alaa Awad, Amr M. Mohamed, Tarek M. Elfouly
{"title":"Energy-cost-distortion optimization for delay-sensitive M-health applications","authors":"Alaa Awad, Amr M. Mohamed, Tarek M. Elfouly","doi":"10.1109/WTS.2015.7117270","DOIUrl":"https://doi.org/10.1109/WTS.2015.7117270","url":null,"abstract":"Mobile-health (m-health) systems leverage wireless and mobile communication technologies to promote new ways to acquire, process, transport, and secure the raw and processed medical data to provide the scalability needed to cope with the increasing number of elderly and chronic disease patients requiring constant monitoring. However, the design and operation of such health monitoring systems with Body Sensor Networks (BASNs) is challenging in twofold. First, limited power source of the sensor nodes. Second, Quality of Service (QoS) guarantee for the delivery of medical data. Therefore, we propose a cross-layer framework that integrates network particularities and application requirements and constraints to provide a sustainable and high-quality service for health monitoring systems. This framework focuses on energy minimization and EEG signal distortion trade-off for delay sensitive transmission of medical data over heterogeneous wireless environment. Simulation results show that the proposed scheme achieves the optimal tradeoff between energy efficiency and QoS requirements for health monitoring systems.","PeriodicalId":300798,"journal":{"name":"2015 Wireless Telecommunications Symposium (WTS)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114902278","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
A new call admission control scheme based on pattern prediction for mobile wireless cellular networks 一种基于模式预测的移动无线蜂窝网络呼叫接纳控制新方案
2015 Wireless Telecommunications Symposium (WTS) Pub Date : 2015-04-15 DOI: 10.1109/WTS.2015.7117261
A. Santamaria, Andrea Lupia
{"title":"A new call admission control scheme based on pattern prediction for mobile wireless cellular networks","authors":"A. Santamaria, Andrea Lupia","doi":"10.1109/WTS.2015.7117261","DOIUrl":"https://doi.org/10.1109/WTS.2015.7117261","url":null,"abstract":"Recently, cellular networking has become really popular, because of its different and growing fields of interest. It is able to satisfy user requirements in terms of Quality of Service, especially when mobility is present, managing hand-over issues in an adequate manner. So, it is very important to decide whether a new connection can be accepted into the system, in order to maximize bandwidth utilization while avoiding quality degradations, with more emphasis for non-tolerant applications. In this paper, the attention is not focused on a particular prediction scheme, but it is shown how a statistical approach can enhance system performance. We employ a general predictor (that can be based on Markov theory, neural networks, data mining approach or similars) and then we integrate it with a threshold-based statistical bandwidth multiplexing scheme in order to propose the Prediction-Based MUltipleXing Call Admission Control (PB-MUX CAC) scheme for cellular networks with mobile hosts. It is able to manage users mobility and to mitigate it, minimizing the amount of wasted bandwidth. Many simulation campaigns have been carried-out, giving us the possibility of evaluating the performance of the proposed idea in terms of number of admitted flows, bandwidth utilization and call blocking/dropping probability.","PeriodicalId":300798,"journal":{"name":"2015 Wireless Telecommunications Symposium (WTS)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115091142","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: 8
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