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2016 International Conference on Advanced Technologies for Communications (ATC)最新文献

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The design of optimized fast decoding protograph LDPC codes 优化的快速解码原型LDPC码的设计
2016 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2016-10-01 DOI: 10.1109/ATC.2016.7764790
T. Nguyen, Hieu T. Nguyen
{"title":"The design of optimized fast decoding protograph LDPC codes","authors":"T. Nguyen, Hieu T. Nguyen","doi":"10.1109/ATC.2016.7764790","DOIUrl":"https://doi.org/10.1109/ATC.2016.7764790","url":null,"abstract":"This paper presents a simple method of designing a protograph-based LDPC codes which has excellent performance with a small number of decoding iterations. In addition to designing LDPC codes based on the iterative decoding threshold as before, we add one more dimension into the design process which is a predefined number of decoding iterations. Simulation results show that the proposed codes have better performance than state-of-the-art protograph codes while the number of decoding iterations is small.","PeriodicalId":225413,"journal":{"name":"2016 International Conference on Advanced Technologies for Communications (ATC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127929503","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
An independent character recognizer for distantly acquired mobile phone text images 一个独立的字符识别器，用于远程获取手机文本图像
2016 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2016-10-01 DOI: 10.1109/ATC.2016.7764836
Binh Quang Long Mai, T. Huynh, Anh Dong Doan
{"title":"An independent character recognizer for distantly acquired mobile phone text images","authors":"Binh Quang Long Mai, T. Huynh, Anh Dong Doan","doi":"10.1109/ATC.2016.7764836","DOIUrl":"https://doi.org/10.1109/ATC.2016.7764836","url":null,"abstract":"In the field of character recognition, OCR is a success as many software have been commercialized, thanks to the exhaustive efforts of scientists. Nevertheless, there are existing cases in which these sophisticated systems fail, which has not been excavated that demands further investigation. This paper presents an attempt to build an effective algorithm in response to a cutting-edge topic in OCR, to determine the content of writing of type-written text document images in a special situation, where the source images are acquired by mobile phone camera, at a distant location. Through evaluating by ABBYY Finereader, it is observed that our system produced an improved gain in success rate.","PeriodicalId":225413,"journal":{"name":"2016 International Conference on Advanced Technologies for Communications (ATC)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128756984","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 evaluation of underlay cognitive radio networks over Nakagami-m fading channels with energy harvesting 基于能量收集的中川衰落信道底层认知无线网络性能评估
2016 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2016-10-01 DOI: 10.1109/ATC.2016.7764755
Pham Minh Quang, Tran Trung Duy, Vo Nguyen Quoc Bao
{"title":"Performance evaluation of underlay cognitive radio networks over Nakagami-m fading channels with energy harvesting","authors":"Pham Minh Quang, Tran Trung Duy, Vo Nguyen Quoc Bao","doi":"10.1109/ATC.2016.7764755","DOIUrl":"https://doi.org/10.1109/ATC.2016.7764755","url":null,"abstract":"In this paper, we study the reliability-security tradeoff for a secondary network in an underday cognitive radio (CR) environment. In the proposed protocol, a secondary transmitter (ST) transmits its data to a secondary receiver (SR) in presence of a secondary eavesdropper (SE) that tries to overhear the ST data. Moreover, a secondary jammer (SJ) that harvests energy from the radio frequency (RF) signals received from the ST is used to transmit jamming signals to the SE. For performance evaluation, we derive exact and asymptotic closed-form expressions of the outage probability (OP) at the SR and the intercept probability (IP) at the SE over Nakagami-m fading channels. Finally, we perform Monte Carlo simulations to verify the theoretical results.","PeriodicalId":225413,"journal":{"name":"2016 International Conference on Advanced Technologies for Communications (ATC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128505224","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: 20
All-optical two-way relaying dual-hop FSO systems using network coding over atmospheric turbulence channel 在大气湍流信道上使用网络编码的全光双向中继双跳FSO系统
2016 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2016-10-01 DOI: 10.1109/ATC.2016.7764804
M. Vu, H. Pham, Thu A. Pham, N. Dang
{"title":"All-optical two-way relaying dual-hop FSO systems using network coding over atmospheric turbulence channel","authors":"M. Vu, H. Pham, Thu A. Pham, N. Dang","doi":"10.1109/ATC.2016.7764804","DOIUrl":"https://doi.org/10.1109/ATC.2016.7764804","url":null,"abstract":"All-optical two-way relaying is an advanced techniques that helps to improve the data-rate and throughput of free-space optical (FSO) communication systems. In this paper, we propose to implement all-optical two-way relaying in dual-hop FSO systems using network coding. The relay node that is based on optical regenerate-and-forward relaying is equipped with an all-optical XOR gate and optical hard-limiters. Performance of the proposed system is analyzed under the effect of atmospheric turbulence and noise induced by the background light. Based on the closed-form expression for bit-error-rate (BER) derived in this paper, the numerical results demonstrate the feasibility of the proposed systems. In addition, the numerical results provide the useful information for system design such as optimum range of threshold power, required transmitted power, and supportable transmission distance.","PeriodicalId":225413,"journal":{"name":"2016 International Conference on Advanced Technologies for Communications (ATC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129327531","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
Spatial — Temporal feature extraction based adaptive search range for effective frame rate up — Conversion 基于时空特征提取的自适应搜索范围，实现有效的帧率上转换
2016 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2016-10-01 DOI: 10.1109/ATC.2016.7764791
Xiem HoangVan, D. Duong, L. T. Ha
{"title":"Spatial — Temporal feature extraction based adaptive search range for effective frame rate up — Conversion","authors":"Xiem HoangVan, D. Duong, L. T. Ha","doi":"10.1109/ATC.2016.7764791","DOIUrl":"https://doi.org/10.1109/ATC.2016.7764791","url":null,"abstract":"Frame rate up conversion (FRUC) has been playing an important role in the recent development of advanced television systems due to its benefits on both increasing the viewing quality experiences and reducing the cost of video transmission. However, with the increasing of video resolutions, notably from Standard Definition (SD) to High Definition (HD), FRUC is now asked to provide not only better interpolated frames quality but also lower time processing. Therefore, in this paper, we propose a novel spatial - temporal feature extraction based adaptive search range for effective FRUC. In the proposed adaptive search range scheme, a set of temporal and spatial features are carefully defined and exploited to adaptively assign an appropriate search range value to each considered block; thus, directly reducing the FRUC time processing. Moreover, since the optimal search range can be employed; the quality of interpolated frames is significantly improved. Experimental results conducted for a rich set of video test sequences shown the advantages of the proposed FRUC scheme, notably in both subjective objective image quality improvement and time processing reduction.","PeriodicalId":225413,"journal":{"name":"2016 International Conference on Advanced Technologies for Communications (ATC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129630591","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
Performance analysis of gigabit-capable mobile backhaul networks exploiting TWDM-PON and FSO technologies 利用TWDM-PON和FSO技术的千兆移动回程网络的性能分析
2016 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2016-10-01 DOI: 10.1109/ATC.2016.7764770
T. V. Nguyen, Hoang T. Nguyen, Hai-Chau Le, N. D. Nguyen, N. Dang
{"title":"Performance analysis of gigabit-capable mobile backhaul networks exploiting TWDM-PON and FSO technologies","authors":"T. V. Nguyen, Hoang T. Nguyen, Hai-Chau Le, N. D. Nguyen, N. Dang","doi":"10.1109/ATC.2016.7764770","DOIUrl":"https://doi.org/10.1109/ATC.2016.7764770","url":null,"abstract":"We studied the performance of a next-generation mobile backhaul network that is based on a hybrid architecture employing NG-PON2 (TWDM-PON) and FSO technologies. We have developed a mathematical model of the downlink system. We then comprehensively analyzed the performance of TWDM-PON/FSO-hybrid backhaul downlink while considering the impacts of various physical layer impairments of both optical fiber and wireless links. The performance of TWDM-PON/FSO systems with different service reaches is also compared to that of corresponding NG-PON2s. The numerical results show that the TWDM-PON/FSO-combined system can take the advantages of both optical access networks and FSO technologies to create a promising flexible gigabit-bandwidth-capable solution for next generation mobile backhaul networks.","PeriodicalId":225413,"journal":{"name":"2016 International Conference on Advanced Technologies for Communications (ATC)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121514787","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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