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Robust compressive wideband spectrum sensing based on non-Gaussianity test 基于非高斯检验的鲁棒压缩宽带频谱感知
2014 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2014-10-01 DOI: 10.1109/ICCCHINA.2014.7008365
Y. Jing, Li Ma, Ji Ma, Peng Li, Bin Niu
{"title":"Robust compressive wideband spectrum sensing based on non-Gaussianity test","authors":"Y. Jing, Li Ma, Ji Ma, Peng Li, Bin Niu","doi":"10.1109/ICCCHINA.2014.7008365","DOIUrl":"https://doi.org/10.1109/ICCCHINA.2014.7008365","url":null,"abstract":"In cognitive radio networks (CRNs), wideband spectrum sensing is an important task for secondary users (SUs) to achieve the dynamic spectrum access. Even though the wideband spectrum detection is feasible by combining the compressive sensing (CS) with wavelet transform, however, accurate detection of the small-scale primary users (SSPUs) such as wireless microphones and mobile devices is still difficult especially under low signal-noise-ratio (SNR) conditions due to the SSPU's weak signal strength. To cope with this challenge, we propose a novel robust compressive wideband spectrum sensing algorithm by exploiting the non-Gaussianity properties of the SSPU's spectrum. Since the spectrum of received signal at SUs more closely approximate the Gaussian distribution when the primary users (PUs) are absent than that of the PU's spectrum, it is possible to design a test statistic to measure the non-Gaussianity properties of the wideband spectrum reconstructed by CS method, then make a decision on whether there are vacant frequency bands. Simulation results show the effectiveness of the proposed algorithm even.","PeriodicalId":353402,"journal":{"name":"2014 IEEE/CIC International Conference on Communications in China (ICCC)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129257131","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
Proportional fair scheduling for dual-polarized multi-beam mobile satellite communications 双极化多波束移动卫星通信比例公平调度
2014 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2014-10-01 DOI: 10.1109/ICCCHINA.2014.7008376
Yang Yang, Xiqi Gao
{"title":"Proportional fair scheduling for dual-polarized multi-beam mobile satellite communications","authors":"Yang Yang, Xiqi Gao","doi":"10.1109/ICCCHINA.2014.7008376","DOIUrl":"https://doi.org/10.1109/ICCCHINA.2014.7008376","url":null,"abstract":"The development of dual polarized digital beamforming techniques shows a bright prospect of high rate Mobile Satellite Communications (MSC). It is a Multi-User Multi-Input Multi-Output (MU-MIMO) network if all user terminals in this network are equipped with dual polarized antennas. The present work focuses on introducing the Proportional Fair (PF) scheduling into this network. The main problem is that the PF scheduling requires estimating the possible transmission rate of all users, but it is very difficult in the MSC because of the great satellite channel delay. In this paper we propose a solution for this problem and evaluate it through computer simulations.","PeriodicalId":353402,"journal":{"name":"2014 IEEE/CIC International Conference on Communications in China (ICCC)","volume":"208 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117101612","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
Uplink reference signal design for GEO dual-polarized MIMO satellite LTE communication system GEO双极化MIMO卫星LTE通信系统上行参考信号设计
2014 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2014-10-01 DOI: 10.1109/ICCCHINA.2014.7008314
Bo Qiang, Lixin Gu, Bin Jiang, Xiqi Gao
{"title":"Uplink reference signal design for GEO dual-polarized MIMO satellite LTE communication system","authors":"Bo Qiang, Lixin Gu, Bin Jiang, Xiqi Gao","doi":"10.1109/ICCCHINA.2014.7008314","DOIUrl":"https://doi.org/10.1109/ICCCHINA.2014.7008314","url":null,"abstract":"In this paper, we propose a new uplink reference signal (RS) structure and channel estimation scheme for long term evolution (LTE) compatible geostationary earth orbit (GEO) satellite communication systems over dual-polarized multiple-input multiple-output (MIMO) channels. The conventional discrete Fourier transform (DFT) based least square (LS) channel estimator suffers from a spectral leakage, which results in an irreducible inter-antenna interference in MIMO systems. By exploiting the characteristic of satellite channel, we put forward a joint slot RS structure in both code division multiplexing (CDM) and frequency division multiplexing (FDM) modes, ensuring the orthogonality between antennas, the former of which is compatible with the terrestrial LTE system. In order to further eliminate the influence of noise, a simple implementation of the optimal channel estimator in the linear minimal mean square error (LMMSE) sense in discrete cosine transform (DCT) domain is derived. Finally, the effectiveness of the proposed RS structure and channel estimation method is verified via simulations.","PeriodicalId":353402,"journal":{"name":"2014 IEEE/CIC International Conference on Communications in China (ICCC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115632382","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
Analysis on the optimal system parameters in massive MIMO systems 大规模MIMO系统最优系统参数分析
2014 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2014-10-01 DOI: 10.1109/ICCCHINA.2014.7008326
Sen Wang, Shuangfeng Han, Zhikun Xu, Lin I. Chih, Z. Pan
{"title":"Analysis on the optimal system parameters in massive MIMO systems","authors":"Sen Wang, Shuangfeng Han, Zhikun Xu, Lin I. Chih, Z. Pan","doi":"10.1109/ICCCHINA.2014.7008326","DOIUrl":"https://doi.org/10.1109/ICCCHINA.2014.7008326","url":null,"abstract":"Massive MIMO has been identified as one promising green communication technology in 5G to further enhance both EE and SE performance of wireless communication systems. Although there is great potential to get high system performance in theory, it is constrained by many factors in practice, for example, the overhead for acquisition of the channel state information. Under this premise, the optimal antenna configuration and multi-user number are investigated for massive MIMO systems in this paper, where the system performance is limited by the overhead of pilot and channel information feedback. When the number of transmit antenna is fixed, there exists a unique optimal number of multi-user. When the number of multi-user is fixed, the existence of optimal antennas relies on the property of the function of overhead. In addition, considering differences of each user propagation environment, an upper bound of optimal multi-user number is deduced which can be used to reduce the calculation complexity of the multi-user grouping. Numerical simulations are also provided to support the analysis.","PeriodicalId":353402,"journal":{"name":"2014 IEEE/CIC International Conference on Communications in China (ICCC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115740411","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
Lightpath blocking performance analytical model for a single ROADM node with intra-node add/drop contention 具有节点内添加/删除竞争的单个ROADM节点的光路阻塞性能分析模型
2014 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2014-10-01 DOI: 10.1109/ICCCHINA.2014.7008250
Li Gao, Yongcheng Li, G. Shen
{"title":"Lightpath blocking performance analytical model for a single ROADM node with intra-node add/drop contention","authors":"Li Gao, Yongcheng Li, G. Shen","doi":"10.1109/ICCCHINA.2014.7008250","DOIUrl":"https://doi.org/10.1109/ICCCHINA.2014.7008250","url":null,"abstract":"In colorless and directionless ROADMs based on broadcast-and-select architectures, due to the intra-node contention, the number of lightpaths that can be added/dropped with the same wavelength is limited by the add/drop contention factor. In this paper, we develop an analytical model to evaluate the lightpath blocking performance for a single ROADM node with intra-node add/drop contention. The study indicates that the model is accurate to effectively predict the simulation results. Also, the add/drop contention factor shows an important impact on the lightpath blocking performance and properly raising contention factor can significantly improve the lightpath blocking performance.","PeriodicalId":353402,"journal":{"name":"2014 IEEE/CIC International Conference on Communications in China (ICCC)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116300188","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 versatile photonic waveform generation scheme by using a dual-drive Mach Zehnder modulator 采用双驱动马赫曾德尔调制器的多功能光子波形生成方案
2014 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2014-10-01 DOI: 10.1109/ICCCHINA.2014.7008256
B. Dai, Dawei Zhang, Xu Wang
{"title":"A versatile photonic waveform generation scheme by using a dual-drive Mach Zehnder modulator","authors":"B. Dai, Dawei Zhang, Xu Wang","doi":"10.1109/ICCCHINA.2014.7008256","DOIUrl":"https://doi.org/10.1109/ICCCHINA.2014.7008256","url":null,"abstract":"We demonstrate a novel scheme using a single dual-drive Mach-Zehnder modulator to generate versatile waveforms from a continuous light with a sinusoidal RF signal. A comprehensive mathematic model is derived and the algorithm to decide the variables for generating various waveforms is developed. The theoretical predictions agree with our experimental results. This reveals a new mechanism for arbitrary waveform generation, which has many applications in different fields.","PeriodicalId":353402,"journal":{"name":"2014 IEEE/CIC International Conference on Communications in China (ICCC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125399935","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
Dual-tone radio interferometric positioning systems using a single mobile anchor 使用单一移动锚的双音无线电干涉定位系统
2014 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2014-10-01 DOI: 10.1109/ICCCHINA.2014.7008315
Lian Li, Yiyin Wang, Xiaoli Ma, Cailian Chen, X. Guan
{"title":"Dual-tone radio interferometric positioning systems using a single mobile anchor","authors":"Lian Li, Yiyin Wang, Xiaoli Ma, Cailian Chen, X. Guan","doi":"10.1109/ICCCHINA.2014.7008315","DOIUrl":"https://doi.org/10.1109/ICCCHINA.2014.7008315","url":null,"abstract":"In this paper, we propose a low-cost dual-tone radio interferometric positioning system using a single mobile anchor, named mDRIPS. There is no synchronization requirement between the mobile anchor and the target. In mDRIPS, the static target continuously transmits a dual-tone signal, and the mobile anchor receives the signal at different positions along its trajectory. The instability of the target clock is taken into account. An ESPRIT-type algorithm is developed to estimate frequencies of the dual-tone signal for the subsequent phase estimation. Furthermore, the time of arrival (TOA) is extracted from the phase estimate of the received dual-tone signal. After measuring several TOAs at different locations along the anchor's trajectory, the target can be located. The mDRIPS is robust to flat-fading channels. Since the frequency difference of the two tones of the dual-tone signal is designed to be smaller than the channel coherence bandwidth, the same fading effect on these two tones can be eliminated. Moreover, we investigate the integer ambiguity problem due to phase wrapping, and develop a localization algorithm to deal with a simplified ambiguity problem. Numerical results demonstrate the efficiency of the proposed mDRIPS.","PeriodicalId":353402,"journal":{"name":"2014 IEEE/CIC International Conference on Communications in China (ICCC)","volume":"29 18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125791505","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
The predictability study of channel state duration based on Hurst index 基于Hurst指数的信道状态持续时间可预测性研究
2014 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2014-10-01 DOI: 10.1109/ICCCHINA.2014.7008363
Man Liu, Guochun Ren, Jin Chen, Guoru Ding, K. Guo
{"title":"The predictability study of channel state duration based on Hurst index","authors":"Man Liu, Guochun Ren, Jin Chen, Guoru Ding, K. Guo","doi":"10.1109/ICCCHINA.2014.7008363","DOIUrl":"https://doi.org/10.1109/ICCCHINA.2014.7008363","url":null,"abstract":"Spectrum prediction is one key enabling method for cognitive radio to improve spectrum utilization. Different from the traditional methods which predict the spectrum state slot-by-slot, in this paper we investigate the issue of prediction analysis of channel state duration (CSD). Specifically, we first introduce the concept of Hurst index to characterize the predictability between different scales of historical data and use the method of R/S (rescaled range) analysis the Hurst index of three different kinds of Large-Scale data and validate if we can obtain best prediction result from high predictability. Then, we introduce a pattern matching approach to validate the practical prediction performance. Furthermore, we focus on the predictability in small-scale data and find sometimes it performs even better than using large-scale data. Moreover, real world spectrum measurements are used to show that selecting historical data based on the predictability theory in this paper, we can smartly improve the predictive efficiency and enhance the prediction accuracy.","PeriodicalId":353402,"journal":{"name":"2014 IEEE/CIC International Conference on Communications in China (ICCC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126704711","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
Modeling duty-cycling MAC protocols with pipelined scheduling for linear sensor networks 线性传感器网络中基于流水线调度的占空比MAC协议建模
2014 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2014-10-01 DOI: 10.1109/ICCCHINA.2014.7008388
Fei Tong, Lei Zheng, Maryam Ahmadi, Minming Ni, Jianping Pan
{"title":"Modeling duty-cycling MAC protocols with pipelined scheduling for linear sensor networks","authors":"Fei Tong, Lei Zheng, Maryam Ahmadi, Minming Ni, Jianping Pan","doi":"10.1109/ICCCHINA.2014.7008388","DOIUrl":"https://doi.org/10.1109/ICCCHINA.2014.7008388","url":null,"abstract":"Linear sensor networks (LSNs) have recently attracted increasing attention due to the vast requirements on the monitoring and surveillance of a structure or area with a linear topology. Being aware that there is little work on the network modeling and analysis based on a duty-cycling MAC protocol for LSNs, in this paper, we model a duty-cycling MAC with a pipelined-scheduling feature for an LSN, where all nodes could generate data. Based on the model, we analyze the network performance in terms of the system throughput and packet delivery latency. Through the extensive OPNET-based simulations, we validate the model and reveal the dependency of the network performance on various system parameters. We believe that our model and analysis could provide an insightful understanding of the behavior of a duty-cycling MAC protocol and aid its design and optimization for a multi-hop LSN.","PeriodicalId":353402,"journal":{"name":"2014 IEEE/CIC International Conference on Communications in China (ICCC)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126579980","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
The role of feedback in channels with information embedding on actions 反馈在行动信息嵌入渠道中的作用
2014 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2014-10-01 DOI: 10.1109/ICCChina.2014.7008240
Xinxing Yin, Xiao Chen, Pengze Guo, Zhi Xue
{"title":"The role of feedback in channels with information embedding on actions","authors":"Xinxing Yin, Xiao Chen, Pengze Guo, Zhi Xue","doi":"10.1109/ICCChina.2014.7008240","DOIUrl":"https://doi.org/10.1109/ICCChina.2014.7008240","url":null,"abstract":"The noiseless feedback is introduced in channels with information embedding on actions. Two channel models are considered. One is wiretap channel with information embedding on actions and noiseless feedback (WT-IEANF), the other is degraded broadcast channel with noncausal action-dependent states and noiseless feedback (DBC-NADSNF). For the WT-IEANF, we characterize both inner and outer bounds on the capacity-equivocation region. For the DBC-NADSNF, an inner bound on the capacity-equivocation region is obtained, and a proper coding scheme is constructed, in which the noiseless feedback plays the role of a shared secret key between the transmitter and legal receiver. We find that the feedback does help increase the secure information transmission rates of the two models, but, at the same time, it enables the illegal receiver to get another chance to eavesdrop the private message. Besides, when secrecy constraint condition is removed, it is found that feedback is not useful for enhancing the capacity of the channel with information embedding on actions.","PeriodicalId":353402,"journal":{"name":"2014 IEEE/CIC International Conference on Communications in China (ICCC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125195213","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
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