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2016 16th International Symposium on Communications and Information Technologies (ISCIT)最新文献

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Improved cyclostationary feature detection based on correlation between the signal and noise 基于信噪相关性的改进环平稳特征检测
2016 16th International Symposium on Communications and Information Technologies (ISCIT) Pub Date : 2016-09-01 DOI: 10.1109/ISCIT.2016.7751705
Jingrui Zhang, Li Zhang, Hai Huang, Xiaojun Jing
{"title":"Improved cyclostationary feature detection based on correlation between the signal and noise","authors":"Jingrui Zhang, Li Zhang, Hai Huang, Xiaojun Jing","doi":"10.1109/ISCIT.2016.7751705","DOIUrl":"https://doi.org/10.1109/ISCIT.2016.7751705","url":null,"abstract":"With the presence of noise floor, characteristic points of signals are submerged easily in conventional cyclostationary feature detection. In this paper, a new cyclostationary feature detection method based on the correlation between signal and noise is proposed for detection of OFDM based primary users. The proposed scheme aims to improve the noise robustness through making the utmost of the information in the cyclic spectrum of the received signals. Meanwhile, in order to obtain the clearer feature, the signal processing technology is used to deal with the cyclic spectrum. Finally, the classification detection is realized by machine learning. Extensive simulation results demonstrate that proposed method provides superiority detection performance compared to the conventional cyclostationary feature detection, especially in low SNR environment.","PeriodicalId":240381,"journal":{"name":"2016 16th International Symposium on Communications and Information Technologies (ISCIT)","volume":"201 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116159622","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
Handover performance in 5G HetNets with millimeter wave cells 毫米波蜂窝5G HetNets的切换性能
2016 16th International Symposium on Communications and Information Technologies (ISCIT) Pub Date : 2016-09-01 DOI: 10.1109/ISCIT.2016.7751582
Liping Li, Changliang Zheng, Huaping Liu
{"title":"Handover performance in 5G HetNets with millimeter wave cells","authors":"Liping Li, Changliang Zheng, Huaping Liu","doi":"10.1109/ISCIT.2016.7751582","DOIUrl":"https://doi.org/10.1109/ISCIT.2016.7751582","url":null,"abstract":"Heterogeneous deployment of macro cells and small cells is considered as a major network topology in future-generation cellular networks. Such layouts could efficiently and effectively enhance network coverage and capacity. To achieve multigiabit radio access, millimeter wave (mmWave) frequencies will be used in 5G heterogeneous networks (HetNets). A typical scenario of such HetNets is that mmWave base stations (BSs) are deployed in macro cells to provide high-capacity coverage in hotspots. Directional communication is an essential way for mmWave small cells to increase its coverage area and to reduce interference. Handover (HO), as a key aspect of mobility management, plays an important role in HetNets. However, most existing studies have focused on the impact of key HO parameters on HO performance, assuming ommi-directional antenna configurations. In this paper, we study the impact of the distance between the overlaid macro BSs and the mmWave small BSs with directional antenna configurations on the HO performance. Closed-form expressions of the probabilities of HO, no HO and HO failure are derived. Extensive simulation results are obtained to validate the analytical results.","PeriodicalId":240381,"journal":{"name":"2016 16th International Symposium on Communications and Information Technologies (ISCIT)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122367992","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
Buffer-aided instantly decodable network coding for wireless video broadcasting with unequal packet-priority retransmission 具有不等分组优先级重传的无线视频广播的缓冲辅助即时可解码网络编码
2016 16th International Symposium on Communications and Information Technologies (ISCIT) Pub Date : 2016-09-01 DOI: 10.1109/ISCIT.2016.7751604
Teng Niu, Dongmei Zhang, Kui Xu, Lianguo Wu, Yu Jiang
{"title":"Buffer-aided instantly decodable network coding for wireless video broadcasting with unequal packet-priority retransmission","authors":"Teng Niu, Dongmei Zhang, Kui Xu, Lianguo Wu, Yu Jiang","doi":"10.1109/ISCIT.2016.7751604","DOIUrl":"https://doi.org/10.1109/ISCIT.2016.7751604","url":null,"abstract":"Multimedia streaming applications have stringent Quality-of-Service (QoS) requirements. Typically, each packet is associated with packet delivery deadline. We are interested in designing feedback-based adaptive network coding schemes with the aim of minimizing decoding delay and video distortion in wireless broadcasting networks over the packet-erasure channel. In this paper, we first introduce the concept of buffer-aided instantly decodable network coding scheme (B-IDNC) to further minimize decoding delay and priority-based unequal packet-priority retransmission scheme (P-UPR) to further reduce scalable video coding (SVC) distortion. Then, we propose a buffer-aided priority-division network coding broadcasting algorithm (BPNC) to support priority transmission for the high-priority packets and the high-priority receivers' packets. Simulation results show that our algorithm significantly reduces decoding delay and the missed deadline percentage, while maintaining high throughput.","PeriodicalId":240381,"journal":{"name":"2016 16th International Symposium on Communications and Information Technologies (ISCIT)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122106087","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
A dynamic affinity propagation clustering algorithm based on MDT in self-healing heterogeneous networks 自愈异构网络中基于MDT的动态亲和传播聚类算法
2016 16th International Symposium on Communications and Information Technologies (ISCIT) Pub Date : 2016-09-01 DOI: 10.1109/ISCIT.2016.7751643
Yu Ma, Jiajia Zhu, Liang Liu, Feibi Lv, Yang Wang
{"title":"A dynamic affinity propagation clustering algorithm based on MDT in self-healing heterogeneous networks","authors":"Yu Ma, Jiajia Zhu, Liang Liu, Feibi Lv, Yang Wang","doi":"10.1109/ISCIT.2016.7751643","DOIUrl":"https://doi.org/10.1109/ISCIT.2016.7751643","url":null,"abstract":"Driven by the proliferation of data traffic and requirement of user experience improvement, mobile wireless network is evolving towards heterogeneous networks (HetNet). The telecom operator is experiencing unprecedented challenges on service maintenance and operational expenditure, which drives the demand for realizing automation in current heterogeneous networks. Cell outage detection is a functionality aiming to automatically detect and locate outages that occur in radio networks due to unexpected failures. Our work presents an automated cell outage detection mechanism in heterogeneous networks in which a clustering algorithm named Dynamic Affinity Propagation (DAP) is introduced. Minimization of drive test (MDT) measurements are collected and dimensionality reduced during regular operation and then fed into the clustering algorithm to find anomaly cells. The proposed mechanism has been implemented in the HetNet simulation environment, through which we have successfully detected the configured cell outages and located the specific outage areas.","PeriodicalId":240381,"journal":{"name":"2016 16th International Symposium on Communications and Information Technologies (ISCIT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128266282","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
On massive MIMO performance with a pilot assignment approach based on Hungarian method 基于匈牙利法的导频分配方法的大规模MIMO性能研究
2016 16th International Symposium on Communications and Information Technologies (ISCIT) Pub Date : 2016-09-01 DOI: 10.1109/ISCIT.2016.7751694
Yuewen Li, Ying Chen, Hai Huang, Xiaojun Jing
{"title":"On massive MIMO performance with a pilot assignment approach based on Hungarian method","authors":"Yuewen Li, Ying Chen, Hai Huang, Xiaojun Jing","doi":"10.1109/ISCIT.2016.7751694","DOIUrl":"https://doi.org/10.1109/ISCIT.2016.7751694","url":null,"abstract":"In this paper, we propose a pilot assignment method to eliminate pilot contamination and improve the system performance in massive Multiple-Input Multiple-Output(MIMO) Time Division Duplexing(TDD) system. Cells are divided into center parts and edge parts according to the number of pilots and users. The pilot sequence sets are identical to center users, but mutually orthogonal for edge users in different cells. Hungarian method is illustrated to solve the pilot assignment in each pilot sequences subset. The simulation results show that the proposed approach achieves lower mean squared error(MSE) and higher sum rate(SR) in the system than the conventional design with a certain range of increasing signal noise ratio(SNR).","PeriodicalId":240381,"journal":{"name":"2016 16th International Symposium on Communications and Information Technologies (ISCIT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129104044","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
User behavior analysis and research based on big data in large-scale gathering scene 大规模采集场景下基于大数据的用户行为分析与研究
2016 16th International Symposium on Communications and Information Technologies (ISCIT) Pub Date : 2016-09-01 DOI: 10.1109/ISCIT.2016.7751651
Mingxin Li, Jinsong Yin, Juanjuan Tan
{"title":"User behavior analysis and research based on big data in large-scale gathering scene","authors":"Mingxin Li, Jinsong Yin, Juanjuan Tan","doi":"10.1109/ISCIT.2016.7751651","DOIUrl":"https://doi.org/10.1109/ISCIT.2016.7751651","url":null,"abstract":"On the mobile communication guarantee project for important activities, the analysis of mass data based on user behavior is conducive to precision operation, including the network layout and optimization, resource investment, etc. A multi-dimensional analysis method is proposed, by combining the network data and the market development operation data, which has been verified in the operation of mobile network and achieved good results.","PeriodicalId":240381,"journal":{"name":"2016 16th International Symposium on Communications and Information Technologies (ISCIT)","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130627015","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
An image pre-processing approach for JSCC scheme based on double protograph LDPC codes 基于双原形LDPC码的JSCC方案图像预处理方法
2016 16th International Symposium on Communications and Information Technologies (ISCIT) Pub Date : 2016-09-01 DOI: 10.1109/ISCIT.2016.7751602
Qiwang Chen, L. Wang, Shaohua Hong
{"title":"An image pre-processing approach for JSCC scheme based on double protograph LDPC codes","authors":"Qiwang Chen, L. Wang, Shaohua Hong","doi":"10.1109/ISCIT.2016.7751602","DOIUrl":"https://doi.org/10.1109/ISCIT.2016.7751602","url":null,"abstract":"An image pre-processing approach is proposed for joint source-channel coding (JSCC) scheme based on double protograph low-density parity-check (DP-LDPC) codes. Firstly, discrete cosine transform (DCT) and quantization are applied to the transmitted images. Different from the data processing of the previous approach for the quantized DCT coefficients, the representation of true form takes the place of complement form. Meanwhile, the high entropy frames will be pre-processed into low entropy frames through frame decomposition procedure due to the entropy of source frame limited by the code-rate of source code. Simulation results indicate that the JSCC scheme with the proposed image pre-processing approach improves the transmission efficiency and can recover the images with good quality at a very low signal-to-noise ratio (SNR).","PeriodicalId":240381,"journal":{"name":"2016 16th International Symposium on Communications and Information Technologies (ISCIT)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124025735","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
Towards a framework for measuring the index node considering local and global networks 建立了一个考虑本地和全局网络的索引节点度量框架
2016 16th International Symposium on Communications and Information Technologies (ISCIT) Pub Date : 2016-09-01 DOI: 10.1109/ISCIT.2016.7751697
Shan Liu, Xinyi Fan, Jianping Chai
{"title":"Towards a framework for measuring the index node considering local and global networks","authors":"Shan Liu, Xinyi Fan, Jianping Chai","doi":"10.1109/ISCIT.2016.7751697","DOIUrl":"https://doi.org/10.1109/ISCIT.2016.7751697","url":null,"abstract":"This paper proposed a solution using multi-index method to evaluating node importance locally and globally with adjusted parameters in the network by considering several evaluation indexes. Especially, it adheres to the principles that the node importance of the network is relevant to the value of the node itself together with the centrality of neighbor nodes from a local point of view. Moreover, this paper considered both spreading information and speed of node in dynamic network. The chief influence on adjusted parameters in different network has been estimated. From the result we can rank the influence of users and analyzing their tags of interest, we can also make valuable classification of users and improve the service for more personalized services, which is very important for data mining.","PeriodicalId":240381,"journal":{"name":"2016 16th International Symposium on Communications and Information Technologies (ISCIT)","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116508537","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
Automated cell outage compensation mechanism based on downtilt adjustments in cellular networks 基于蜂窝网络下倾角调整的蜂窝中断自动补偿机制
2016 16th International Symposium on Communications and Information Technologies (ISCIT) Pub Date : 2016-09-01 DOI: 10.1109/ISCIT.2016.7751580
Wenjing Li, Peng Yu, Mengjun Yin, Lei Feng, Xue-song Qiu
{"title":"Automated cell outage compensation mechanism based on downtilt adjustments in cellular networks","authors":"Wenjing Li, Peng Yu, Mengjun Yin, Lei Feng, Xue-song Qiu","doi":"10.1109/ISCIT.2016.7751580","DOIUrl":"https://doi.org/10.1109/ISCIT.2016.7751580","url":null,"abstract":"To solve abnormal coverage problems in cellular networks caused by some internal or external failures without power control, an automated Cell Outage Compensation (COC) scheme based on antenna downtilt adjustment of Base Stations (BSs) is proposed. We firstly give the self-organized processes for COC, then use an algorithm named Autonomic Downtilt Adjustment Particle Swarm Algorithm (ADAPSA) to resolve it. In the algorithm, we construct coverage compensation as a multi-objective non-linear optimization problem, and then use a particle swarm algorithm to resolve it. Simulations are done under LTE networks with directional antennas in each eNodeB. Results show that coverage of the outage area can be compensated effectively and the regional service quality can be maintained meanwhile.","PeriodicalId":240381,"journal":{"name":"2016 16th International Symposium on Communications and Information Technologies (ISCIT)","volume":"50 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124525395","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
Orthogonal parallel combinatory amplitude shift keying modulated multicarrier system 正交平行组合移幅键控调制多载波系统
2016 16th International Symposium on Communications and Information Technologies (ISCIT) Pub Date : 2016-09-01 DOI: 10.1109/ISCIT.2016.7751581
Chengbo Liu, Yafei Hou, T. Higashino, M. Okada
{"title":"Orthogonal parallel combinatory amplitude shift keying modulated multicarrier system","authors":"Chengbo Liu, Yafei Hou, T. Higashino, M. Okada","doi":"10.1109/ISCIT.2016.7751581","DOIUrl":"https://doi.org/10.1109/ISCIT.2016.7751581","url":null,"abstract":"For some scenarios where high received power cannot be guaranteed due to user moving, the OFDM system with low order M-QAM such as BPSK/QPSK is promising. This paper will propose an orthogonal parallel combinatory ASK modulated multicarrier system to achieve flexible bandwidth efficiency (BWE) using low order ASK modulation and parallel combinatory (PC) code. PC code has been shown that it can achieve flexible BWE and better peak-to-average power ratio (PAPR) performance. Our proposal will utilize PC code for both I-phase and Q-phase of frequency-domain OFDM symbol which further improve the BWE of PC-OFDM system. The proposed system can obtain better BER performance and better PAPR performance using low order ASK modulation. Therefore, the proposed system can simplify the receiver design and provide the design freedom degree with a flexible range of BWE for system design or adaptive modulation and code control.","PeriodicalId":240381,"journal":{"name":"2016 16th International Symposium on Communications and Information Technologies (ISCIT)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125245944","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
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