2014 21st International Conference on Telecommunications (ICT)最新文献_第9页

Cooperative downlink MC-CDMA system aided by transmitter preprocessing: Performance results 基于发射机预处理的协同下行MC-CDMA系统:性能结果

2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845097

B. Sridharan, Ananya Ravi, A. Haribhaskaran, P. Nagaradjane

引用次数: 8

Exploring mobile data on smartphones from collection to analysis 在智能手机上探索从收集到分析的移动数据

2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845157

Bin Xiang, Konglin Zhu, Xiaoyi Zhang, Yanlong Yin, Lin Zhang

引用次数: 3

A comparison of ISP and MNO interconnection models ISP和MNO互连模型的比较

2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845153

Görkem Çakmak, Henna Suomi

{"title":"A comparison of ISP and MNO interconnection models","authors":"Görkem Çakmak, Henna Suomi","doi":"10.1109/ICT.2014.6845153","DOIUrl":"https://doi.org/10.1109/ICT.2014.6845153","url":null,"abstract":"Network operators - being it fixed or mobile - are in continuous need to keep up with a variety of customer requirements while seeking efficient ways to interconnect with other networks. This issue raises several, not only technical challenges that are addressed differently depending on the legacy of operators. This paper conducts a holistic comparison of two interconnection models used for global Internet Protocol (IP) service delivery: Internet Service Provider (ISP) interconnections in an unmanaged, public model and Mobile Network Operator (MNO) interconnections in a managed, closed model. To lay out technical and business interfaces of these models, Value Network Configurations (VNCs) are utilized and the key characteristics of each model are analysed from technical, economic and regulatory perspectives. The comparison shows that these two models do not employ broadly divergent approaches to accomplish a global reach, as one could assume. However, fundamental differences and how these features induce each model to evolve in their own trajectories cannot be omitted either. By comparing the existing models that represent two different worlds, the current drawbacks can be addressed, and thus future implications of emerging models, such as IP eXchange (IPX), can be rationally anticipated.","PeriodicalId":154328,"journal":{"name":"2014 21st International Conference on Telecommunications (ICT)","volume":"26 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":"131522539","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

Price-based power control with statistical delay QoS guarantee in two-tier femtocell networks 两层飞蜂窝网络中基于价格的统计时延QoS控制

2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845131

Shenghua He, Ling Zhang, X. Wen, Zhicai Zhang, Zhaoming Lu, Yong Sun

引用次数: 7

Common phase error cancellation scheme with DPOLSK in OFDM system OFDM系统中常用的DPOLSK相位误差消除方案

2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845094

Yao Nie, Chunyan Feng, Caili Guo, Fangfang Liu

引用次数: 7

Empirical investigation on the dependence of TCP upstream throughput on SNR in an IEEE802.11b WLAN system IEEE802.11b无线局域网系统中TCP上行吞吐量对信噪比依赖性的实证研究

2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845155

Oghogho Ikponmwosa, F. Edeko, Emagbetere Joy, M. Victor

{"title":"Empirical investigation on the dependence of TCP upstream throughput on SNR in an IEEE802.11b WLAN system","authors":"Oghogho Ikponmwosa, F. Edeko, Emagbetere Joy, M. Victor","doi":"10.1109/ICT.2014.6845155","DOIUrl":"https://doi.org/10.1109/ICT.2014.6845155","url":null,"abstract":"An empirical investigation on the dependence of TCP upstream throughput against signal to noise ratio (SNR) in an IEEE802.11b WLAN system was carried out in various environments and varieties of QoS traffic. The TCP upstream throughput (TCPupT) was measured for various SNR observed. An Infrastructure based IEEE802.11b WLAN system having networked computers on which measurement software were installed, was set up consecutively in various environments (open corridor, small offices with block walls and plaster boards and free space). Empirical models describing the TCPupT against SNR for different signals ranges (all ranges of signals, strong signals only, grey signals only and weak signals only) were statistically generated and validated. Our results show a strong dependence of TCPupT on the received SNR which varied as the SNR values changed from high (strong signals) through low (grey signals) to very low (weak signals). Our models showed lower RMS errors when compared with other similar models. We observed RMS errors of 0.5431955Mbps, 0.447938789Mbps, 1.04536603Mbps and 0.4503096Mbps for all SNR model, strong signals model, Grey signals model and Weak signals model respectively. Our models will provide researchers and WLAN systems users with a tool to estimate TCPupT in a real network in various environments by monitoring the SNR.","PeriodicalId":154328,"journal":{"name":"2014 21st International Conference on Telecommunications (ICT)","volume":"1 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":"125859389","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: 10

Delay analysis of network architectures for machine-to-machine communications in LTE system LTE系统中机器对机器通信网络架构的时延分析

2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.7575075

Hamidreza Shariatmadari, S. Iraji, Andres Laya, Omer Anjum, R. Jäntti, Zexian Li, C. Wijting

引用次数: 13

Hybrid digital-analog video transmission based on H.264/AVC and ParCast in MIMO-OFDM WLANs MIMO-OFDM无线局域网中基于H.264/AVC和ParCast的混合数模视频传输

2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845146

Nianfei Fan, Yu Liu, Lin Zhang

引用次数: 5

LDPC coded transmissions over the Gaussian broadcast channel with confidential messages 在高斯广播信道上用LDPC编码传输机密信息

2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-04-10 DOI: 10.1109/ICT.2014.6845079

M. Baldi, N. Maturo, G. Ricciutelli, F. Chiaraluce

{"title":"LDPC coded transmissions over the Gaussian broadcast channel with confidential messages","authors":"M. Baldi, N. Maturo, G. Ricciutelli, F. Chiaraluce","doi":"10.1109/ICT.2014.6845079","DOIUrl":"https://doi.org/10.1109/ICT.2014.6845079","url":null,"abstract":"We design and assess some practical low-density parity-check (LDPC) coded transmission schemes for the Gaussian broadcast channel with confidential messages (BCC). This channel model is different from the classical wiretap channel model as the unauthorized receiver (Eve) must be able to decode some part of the information. Hence, the reliability and security targets are different from those of the wiretap channel. In order to design and assess practical coding schemes, we use the error rate as a metric of the performance achieved by the authorized receiver (Bob) and the unauthorized receiver (Eve). We study the system feasibility, and show that two different levels of protection against noise are required on the public and the secret messages. This can be achieved in two ways: i) by using LDPC codes with unequal error protection (UEP) of the transmitted information bits or ii) by using two classical non-UEP LDPC codes with different rates. We compare these two approaches and show that, for the considered examples, the solution exploiting UEP LDPC codes is more efficient than that using non-UEP LDPC codes.","PeriodicalId":154328,"journal":{"name":"2014 21st International Conference on Telecommunications (ICT)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132135754","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: 3

Performance of macro-scale molecular communications with sensor cleanse time 传感器清洗时间对宏观分子通信性能的影响

2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-03-31 DOI: 10.1109/ICT.2014.6845140

Siyi Wang, Weisi Guo, Song Qiu, M. McDonnell

引用次数: 14