2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC)最新文献_第6页

QoS analysis for WebRTC videoconference on bandwidth-limited network 有限带宽网络下WebRTC视频会议的QoS分析

2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC) Pub Date : 2017-12-01 DOI: 10.1109/WPMC.2017.8301873

Y. Bandung, L. B. Subekti, Dion Tanjung, C. Chrysostomou

{"title":"QoS analysis for WebRTC videoconference on bandwidth-limited network","authors":"Y. Bandung, L. B. Subekti, Dion Tanjung, C. Chrysostomou","doi":"10.1109/WPMC.2017.8301873","DOIUrl":"https://doi.org/10.1109/WPMC.2017.8301873","url":null,"abstract":"This paper presents a quality of service analysis conducted for real-time multimedia communication services particularly over limited capacity network. This research aims to examine quality of videoconference service based on WebRTC technology. We investigate several implementation challenges of videoconferencing in bandwidth limited network by conducting a thorough experimental study. We analyze videoconference quality from the implementation of WebRTC based system for supporting distance learning between two schools in Cianjur, West Java, Indonesia. Further, we study adaptability feature of WebRTC by performing experiments for several network conditions. Result of the experiment shows that fair quality of video (peak signal-to-noise ratio, PSNR, between 30dB to 33dB) can be reached when bandwidth capacity is 2048kbps. On the other hand, the experiment shows acceptable audio and video stream quality with packet loss rate (PLR) less than 1% and jitter less than 100ms can be reached in network condition with bandwidth capacity higher than 128kbps. Outcome of this research supports understanding and addressing of the challenges of real-time videoconferencing on bandwidth limited network.","PeriodicalId":239243,"journal":{"name":"2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115472946","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

Iterative carrier frequency offset estimation for faster-than-nyquist signaling 快于奈奎斯特信号的迭代载波频偏估计

2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC) Pub Date : 2017-12-01 DOI: 10.1109/WPMC.2017.8301798

Jiancun Fan, Yajie Ren, Y. Zhang, Xinmin Luo

引用次数: 4

Connection admission control strategy for wireless VoIP networks using different codecs and/or codec mode-sets 使用不同编解码器和/或编解码器模式集的无线VoIP网络的连接允许控制策略

2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC) Pub Date : 2017-12-01 DOI: 10.1109/WPMC.2017.8301819

Mario A. Ramírez-Reyna, F. A. Cruz-Pérez, S. L. Castellanos-Lopez, G. Hernández-Valdez, M. E. Rivero-Angeles

引用次数: 5

A novel localization C# framework for RAN optimization using extreme programming methodologies 一个新的本地化c#框架，使用极限编程方法进行RAN优化

2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC) Pub Date : 2017-12-01 DOI: 10.1109/WPMC.2017.8301867

R. Borralho, Sergio Ferreira, P. Vieira, Tiago Rosa Maria Paula Queluz, A. Rodrigues

引用次数: 1

Angle based malicious user detection for wideband cognitive radio network 基于角度的宽带认知无线网络恶意用户检测

2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC) Pub Date : 2017-12-01 DOI: 10.1109/WPMC.2017.8301828

Xuekang Sun, R. Zhou, Hongxing Wu, Li Gao, Yuyan Zhang

引用次数: 4

Field experimental evaluation of higher rank MIMO in quad-directional UE antenna configuration for 5G radio access system 5G无线接入系统四向UE天线配置中高阶MIMO的现场实验评估

2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC) Pub Date : 2017-12-01 DOI: 10.1109/WPMC.2017.8301872

Yuta Takahashi, Y. Inoue, Shohei Yoshioka, Y. Kishiyama, S. Suyama, Jun Mashino, Y. Okumura, Tsuneomi Haruna, Takeshi Tanaka, A. Splett, Henrik Liljestrom

{"title":"Field experimental evaluation of higher rank MIMO in quad-directional UE antenna configuration for 5G radio access system","authors":"Yuta Takahashi, Y. Inoue, Shohei Yoshioka, Y. Kishiyama, S. Suyama, Jun Mashino, Y. Okumura, Tsuneomi Haruna, Takeshi Tanaka, A. Splett, Henrik Liljestrom","doi":"10.1109/WPMC.2017.8301872","DOIUrl":"https://doi.org/10.1109/WPMC.2017.8301872","url":null,"abstract":"This paper presents field experiments on the downlink performance of a 5G radio access system employing higher rank MIMO in the quad-directional antenna configuration at UE side comparing the uni-directional antenna configuration in typical small cell environments. Each antenna branch of the quad-directional antenna directs for intervals of 90 degrees in horizontal plane. The results show Rank-8 transmission performance is better compare to the uni-directional antenna configuration even the antenna gain is degraded, because the spatial correlation of UE becomes low using the quad-directional antenna in the environment has many complex reflection paths. And also it shows the stable performance of throughput about the dependency of the UE antenna direction. The antenna covers omni direction with combining all antenna branches and the spatial correlation is low compare to the uni-directional antenna. The performance is tradeoff of degradation of the total antenna gain.","PeriodicalId":239243,"journal":{"name":"2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122922592","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

A transceiver design of VHF band standardized broadband mobile communications systems 一种VHF频段标准化宽带移动通信系统的收发器设计

2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC) Pub Date : 2017-12-01 DOI: 10.1109/WPMC.2017.8301895

Kiminobu Makino, K. Mizutani, T. Matsumura, H. Harada

{"title":"A transceiver design of VHF band standardized broadband mobile communications systems","authors":"Kiminobu Makino, K. Mizutani, T. Matsumura, H. Harada","doi":"10.1109/WPMC.2017.8301895","DOIUrl":"https://doi.org/10.1109/WPMC.2017.8301895","url":null,"abstract":"This paper evaluates BER performance of VHF band broadband mobile communication systems standardized as ARIB STD-T103 mode1. The ARIB STD-T103 mode 1 is based on IEEE 802.16-2009 standard with OFDMA because of its easy implementation. The IEEE 802.16-2009 based system is originally expected to operate in microwave bands such as 2.5 GHz with 512 FFT based OFDM in 5 MHz channel. However, the ARIB STD-T103 based system should tune the radio parameters of IEEE 802.16-2009 to suit for VHF band propagation characteristics because many multipath waves with long delay path are received in the VHF band. The ARIB STD-T103 mode 1 adopts OFDMA with 1024 FFT in 5 MHz channel and convolutional Turbo coding to cope with long delay multipath environments in VHF band such as IEEE 802.22 Profile A model. However, the BER performance in the environments has never been evaluated. This paper evaluates the BER performance with conventionally proposed receiving scheme by computer simulation. However, the performances of UL and DL with 64QAM do not achieve the required BER of ARIB STD-T103. To improve the BER performance this paper proposes three channel estimation schemes for DL. Although the BER performance with the schemes are not improved drastically, it is clarified that one of the proposals is expected to reduce size of storage in comparison with the conventional estimation schemes. With the estimation scheme and maximum ratio combined diversity achieves the required BER in both UL and DL.","PeriodicalId":239243,"journal":{"name":"2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"149 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121643603","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

LTE uplink system based on universal timedomain windowed DFTs-OFDM 基于通用时域加窗dft - ofdm的LTE上行系统

2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC) Pub Date : 2017-12-01 DOI: 10.1109/WPMC.2017.8301837

Y. Kodama, K. Mizutani, T. Matsumura, H. Harada

{"title":"LTE uplink system based on universal timedomain windowed DFTs-OFDM","authors":"Y. Kodama, K. Mizutani, T. Matsumura, H. Harada","doi":"10.1109/WPMC.2017.8301837","DOIUrl":"https://doi.org/10.1109/WPMC.2017.8301837","url":null,"abstract":"For the 5G systems, new uplink waveforms enabling low peak-to-average power ratio (PAPR) and low out-of-band emission (OOBE) are required to enhance spectrum efficiency while maintaining power efficiency of mobile terminals. Discrete Fourier transform-spread orthogonal frequency division multiplexing (DFTs-OFDM) is extensively used as an uplink multiple access scheme for existing Long Term Evolution (LTE) and LTE-Advanced systems. Despite lower PAPR of DFTs-OFDM compared to conventional OFDM, its high OOBE limits the spectral availability in adjacent channels. Universal time-domain windowing (UTW) is expected to significantly reduce OOBE, while it is necessary to demonstrate its practicality with a comprehensive evaluation including the communication quality. In this paper, we apply the UTW to the 5 MHz LTE uplink system based on DFTs-OFDM (UTW-DFTs-OFDM) and simulate its performance in respect to OOBE, PAPR, and block error rate (BLER) under the frequency selective fading environment. In addition, we propose new receiver architecture to improve the communication quality and clarify the trade-off between OOBE reduction and the communication quality. The simulation results indicate that UTW-DFTs-OFDM significantly reduces the OOBE by applying a long time-domain window in excess of the CP length with maintaining sufficient communication quality.","PeriodicalId":239243,"journal":{"name":"2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117121054","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

A UTW-OFDM without symbol overlapping process for small cell networks 小蜂窝网络中无符号重叠的UTW-OFDM处理

2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC) Pub Date : 2017-12-01 DOI: 10.1109/WPMC.2017.8301789

Akihito Yoshito, Y. Kodama, Hiroto Kuriki, K. Mizutani, T. Matsumura, H. Harada

{"title":"A UTW-OFDM without symbol overlapping process for small cell networks","authors":"Akihito Yoshito, Y. Kodama, Hiroto Kuriki, K. Mizutani, T. Matsumura, H. Harada","doi":"10.1109/WPMC.2017.8301789","DOIUrl":"https://doi.org/10.1109/WPMC.2017.8301789","url":null,"abstract":"A universal time-domain windowed orthogonal frequency division multiplexing (UTW-OFDM) has been proposed as one of the new waveforms to drastically reduce the out-of-band emission (OOBE) for the 5th generation mobile communication systems. Meanwhile, the conventional UTW-OFDM with a symbol overlapping process requires an additional memory for storing successive windowed symbols to ensure sufficient effective CP length. For the forthcoming ultra-dense small cell networks in the 5G, a more simplified yet effective new waveform is required. In this paper, we propose a new UTW-OFDM without symbol overlapping process to simplify the transmitter architecture compared to the conventional UTW-OFDM. The performance of the proposed UTW-OFDM is characterized by simulating OOBE, inter-symbol interference (ISI), inter-carrier interference (ICI), error vector magnitude (EVM) and block error rate (BLER). The simulation results show sufficient OOBE reduction in the short-delay multipath fading environment and demonstrate the applicability of the proposed UTW-OFDM for small cell networks.","PeriodicalId":239243,"journal":{"name":"2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130681374","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

Performance evaluation of rate-compatible polar codes using puncturing/shortening 使用穿刺/缩短的速率相容极性码的性能评价

2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC) Pub Date : 2017-12-01 DOI: 10.1109/WPMC.2017.8301805

Taku Sugimoto, S. Suyama, Satoshi Nagata, N. Miki

引用次数: 2