2014 21st International Conference on Telecommunications (ICT)最新文献_第5页

A novel gossip-based multirate overlay multicast strategy 一种新的基于八卦的多速率覆盖组播策略

2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845107

Yanheng Wei, Junyi Wang, Zhishuai Gong

引用次数: 2

Downlink cognitive interference alignment for heterogeneous networks 异构网络的下行认知干扰对齐

2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845115

S. Ali, D. Castanheira, Adão Silva, A. Gameiro

引用次数: 3

Nothing can compare with a population, besides agents 没有什么能与人口相比，除了代理人

2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845151

Yann Busnel

引用次数: 1

De Bruijn sequences as Zero Correlation Zone codes for satellite navigation systems 作为卫星导航系统零相关区码的德布鲁因序列

2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845111

Mahdiyar Sarayloo, E. Gambi, S. Spinsante

引用次数: 5

On adaptive live streaming in mobile cloud computing environments with D2D cooperation 基于D2D协同的移动云计算环境下的自适应直播研究

2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845148

Geng Xi, Xiaoyi Zhang, Kaiming Qu

{"title":"On adaptive live streaming in mobile cloud computing environments with D2D cooperation","authors":"Geng Xi, Xiaoyi Zhang, Kaiming Qu","doi":"10.1109/ICT.2014.6845148","DOIUrl":"https://doi.org/10.1109/ICT.2014.6845148","url":null,"abstract":"The gap between the traffic demand and the link capacity, along with time-varying link conditions, results in poor service quality of video streaming services over the mobile networks. Leveraging the mobile cloud computing and wireless Device to Device (D2D) technology, we propose and discuss a framework to improve the quality of video services in a special scenario that adjacent mobile devices desire to synchronously receive a live content stream. Traditionally, these devices are competitors to the expensive and variation server to device interfaces, even they request for the same live stream. The proposed cloud-based live stream server will improve the Dynamic Adaptive streaming over HTTP (DASH) service by computing and transcoding the original stream segment according to the accumulated bandwidth of the devices' group, then divide the trans-coded stream segment into fragments for each device to fetch. After the devices received the fragments, every device can get the whole segment by exchanging the fragments through the free short-range D2D interface. This mechanism could provide higher resolution live streaming with less expense by the cooperation among adjacent mobile devices. The Quality of Experience (QoE) and network utilization will also be improved. We present the scheme in details and our implementation on Android smart-phones to testify the performance.","PeriodicalId":154328,"journal":{"name":"2014 21st International Conference on Telecommunications (ICT)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131056451","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: 6

Reconfigurable gap-coupled back-to-back truncated rhombus-like slotted patch antenna with steerable beams 具有可操纵波束的可重构间隙耦合背靠背截断菱形开槽贴片天线

2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845135

S. Muhamud-Kayat, M. Ali, Mohd Khairul Mohd Salleh, M. H. M. Rusli

{"title":"Reconfigurable gap-coupled back-to-back truncated rhombus-like slotted patch antenna with steerable beams","authors":"S. Muhamud-Kayat, M. Ali, Mohd Khairul Mohd Salleh, M. H. M. Rusli","doi":"10.1109/ICT.2014.6845135","DOIUrl":"https://doi.org/10.1109/ICT.2014.6845135","url":null,"abstract":"The paper presents an innovative antenna structure by incorporating a reconfigurable planar array antenna with parasitic elements, in which it comprises of two truncated rhombus-like slotted patch antennas in back-to-back configuration. The antenna emphasizes on these two design elements: slotted patch and parasitic elements to reconfigure its frequency and radiation pattern, respectively. On top of that, the deployment of an aperture coupling technique which separates feed network from the antenna radiating elements help to reduce spurious effects from the feed work. The main focus of this work is to design a reconfigurable antenna structure that is capable of operating at two different frequencies with steerable beams. In other words, both frequency and radiation pattern can be reconfigured by using the same antenna. A `state-of-the-art' design of rhombus-like slotted patch with truncated edges is also introduced in this paper. The integration of PIN diodes as RF switches with the feed network and parasitic elements enables the antenna to activate at two different frequencies with six different steerable beam directions at each frequency mode, F1=5.3GHz (0°, 10°, 170°, 180°, 190° and 350°) and F2=5.9GHz (0°, 20°, 160°, 180°, 200° and 340°). Both simulation and measurement results are presented and they agree well to each other. The antenna is compatible to be embedded with other mobile devices owing to its small and compact size. Furthermore, it has the potential to be applied in multiple applications based on 5.3GHz and 5.9GHz bands.","PeriodicalId":154328,"journal":{"name":"2014 21st International Conference on Telecommunications (ICT)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123144480","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

Verification of DNSsec Delegation Signatures 验证DNSsec授权签名

2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845127

F. Kammüller

引用次数: 3

Joint relay transmit-receive antenna selection and opportunistic source selection strategy for full-duplex relaying 全双工中继的联合中继收发天线选择和机会源选择策略

2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845076

Rongsheng Li, Hui Gao, Wei Long, Tiejun Lv

引用次数: 2

Multi-phase Device-to-Device relay algorithms for data dissemination in a cluster 用于集群中数据传播的多相设备到设备中继算法

2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845108

Junyi Wang, Zhishuai Gong, Yanheng Wei

{"title":"Multi-phase Device-to-Device relay algorithms for data dissemination in a cluster","authors":"Junyi Wang, Zhishuai Gong, Yanheng Wei","doi":"10.1109/ICT.2014.6845108","DOIUrl":"https://doi.org/10.1109/ICT.2014.6845108","url":null,"abstract":"In cellular networks, Device-to-Device (D2D) links can be utilized for data dissemination via unicast or/and multicast within a cluster. For traditional D2D relay schemes, D2D links with poor channel conditions may be the bottleneck and result in conservative resource utilization. Therefore, we suggest preferentially selecting the good quality D2D links with high achievable data rates, which induces multi-phase transmissions. Such selective transmissions require us to pre-define a data rate threshold. Obviously, a larger threshold leads to more phases, which is harmful to efficient resource utilization. Hence, there is a tradeoff in selecting the data rate threshold. In the paper, we gradually design three rules to set the threshold and accordingly propose three D2D relay schemes, which can adaptively select the optimal relays, routing and number of phases according to the D2D links quality and our pre-defined thresholds. Simulation results show that our proposed schemes, in turn, yield ascending gains in terms of resource utilization and the best of them achieves a significant resource efficiency compared to the existing single-phase schemes.","PeriodicalId":154328,"journal":{"name":"2014 21st International Conference on Telecommunications (ICT)","volume":"92 12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129984028","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

Coverage enhancement for M2M communications using LTE 使用LTE的M2M通信的覆盖增强

2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.7575093

R. Ratasuk, Yanji Zhang, Du Lei, N. Mangalvedhe, Amitava Ghosh

引用次数: 3