{"title":"Guaranteed Greedy Scheduling algorithm for coal workface PWSN","authors":"Xiaohu Zhao, Zuhao Fang, Xin Zhang","doi":"10.1109/WCSP.2019.8927922","DOIUrl":"https://doi.org/10.1109/WCSP.2019.8927922","url":null,"abstract":"In view of the proposed model of the PWSN (positioning wireless sensor networks) for coal workface, the uncertainty of the model in the application scenario is analyzed, and the transmission time of the network is too long while the packet loss problem during scheduling is proposed. In order to solve this problem, the process of channel-to-message transmission scheduling is optimized. Combined with PSO (Particle Swarm Optimization) algorithm and multi-level iterative algorithm, a guaranteed greedy transmission scheduling algorithm is proposed. Simulation experiments show that the proposed method effectively reduces the transmission time of packets under the premise of ensuring the packet loss rate.","PeriodicalId":108635,"journal":{"name":"2019 11th International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128490584","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}
Fengrui Zhang, Mingbing Li, Yimao Sun, Jifeng Zou, Q. Wan
{"title":"A TDOA-FDOA Localization Method in Closed-form Based on Deviation Refining","authors":"Fengrui Zhang, Mingbing Li, Yimao Sun, Jifeng Zou, Q. Wan","doi":"10.1109/WCSP.2019.8928125","DOIUrl":"https://doi.org/10.1109/WCSP.2019.8928125","url":null,"abstract":"This paper focuses on localizing a moving source with time difference of arrival (TDOA) and frequency difference of arrival (FDOA) measurements in a wireless sensor network. An improved two-stage weighted least squares closed-form solution is proposed. The weighted spherical-interpolation method and deviation refining method are applied in the first and second stage respectively. It is analytically verified that the performance of proposed solution can attain the Cramér-Rao lower bound under mild Gaussian noise assumption. The proposed solution is shown to be effective and significantly decreases the bias of the estimate in terms of numerical simulations.","PeriodicalId":108635,"journal":{"name":"2019 11th International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128564120","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}
{"title":"Joint MS Offloading and Interference Coordination for Heterogeneous Ultra Dense Networks","authors":"Di Qu, Shangwei Xie, Bule Sun, Yiqing Zhou","doi":"10.1109/WCSP.2019.8928074","DOIUrl":"https://doi.org/10.1109/WCSP.2019.8928074","url":null,"abstract":"Heterogeneous ultra dense network (HUDN) is a promising technique to improve network capacity for the fifth generation mobile communication system. However, HUDNs face the challenges of severe inter-cell interference and imbalanced load. To maximize the system utility, the mobile station (MS) offloading and interference coordination should be considered jointly. This paper applies cell range expansion (CRE) in HUDNs to balance cell loads. First, the interference source of MSs is analyzed for a HUDN with CRE, based on which the initial idea of frequency domain interference coordination is proposed. Then, a joint MS offloading and interference coordination optimization problem is formulated, which is NP hard. Therefore, a heuristic algorithm is proposed to solve the problem step by step. The simulation results show that the proposed scheme can improve the SINR and rate of MSs when compared to the traditional frequency domain ICIC scheme.","PeriodicalId":108635,"journal":{"name":"2019 11th International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129576522","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}
{"title":"Doppler Spread Suppression for Massive MIMO High-Mobility CoMP Uplink Transmission","authors":"Zhinan Hu, Weile Zhang","doi":"10.1109/WCSP.2019.8927948","DOIUrl":"https://doi.org/10.1109/WCSP.2019.8927948","url":null,"abstract":"Coordinated Multi-Point transmission/reception (CoMP) is one of the promising techniques for high-mobility wireless communications systems to increase cell edge user throughput in both uplink and downlink transmission. In this paper, we consider the CoMP uplink transmission, where a high-speed terminal (HST) simultaneously transmits signals to multiple base stations (BSs) with angle-domain Doppler shifts compensation. We derive the exact channel power spectrum density (PSD) for uplink CoMP transmissions. The antenna weighting technique is then proposed to suppress the Doppler spread, where an optimization problem is formulated to minimize the maximum Doppler spread among all the BSs. Numerical results are provided to corroborate both the PSD analysis and the superiority of antenna weighting technique.","PeriodicalId":108635,"journal":{"name":"2019 11th International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126960775","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}
S. Xie, Bangning Zhang, D. Guo, Rui Xu, Cheng Li, Wenfeng Ma
{"title":"Performance Analysis of Non-Orthogonal Multiple Access with Co-Channel Interference in a Satellite Communication System","authors":"S. Xie, Bangning Zhang, D. Guo, Rui Xu, Cheng Li, Wenfeng Ma","doi":"10.1109/WCSP.2019.8927990","DOIUrl":"https://doi.org/10.1109/WCSP.2019.8927990","url":null,"abstract":"In this paper, we present an analytical study on the performance of the non-orthogonal multiple access (NOMA) scheme in a satellite system, where the users are impaired by multiple co-channel interferences (CCI). Theoretical expressions for the ergodic capacity, exact outage probability and asymptotic are derived. Numerical results are provided to demonstrate the theoretical results and indicate the effects of CCI, power allocation and channel parameters on the system performance.","PeriodicalId":108635,"journal":{"name":"2019 11th International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132524036","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}
Tiantian Zhao, Kun Zhao, Chao Yu, D. Dong, Zhengqi Zheng, Yu Zhang
{"title":"Application of Differential Time Synchronization in Indoor Positioning","authors":"Tiantian Zhao, Kun Zhao, Chao Yu, D. Dong, Zhengqi Zheng, Yu Zhang","doi":"10.1109/WCSP.2019.8927974","DOIUrl":"https://doi.org/10.1109/WCSP.2019.8927974","url":null,"abstract":"Indoor positioning technologies based on Wi-Fi and Bluetooth usually have low accuracy. Also, timing error is such a common problem that can be found in Ultra-wide Band (UWB) positioning systems. In this paper, principles and main sources of errors for differenced time synchronization techniques are studied based on UWB, and a cooperative location algorithm based on differenced time synchronization of fixed nodes and Taylor is proposed and verified. We store the differenced delay of the fiber-optic propagation and mechanical device between fixed nodes by calculating the difference between the estimated position and the real position of a synchronous node in the local server and use it to eliminate errors in the positioning processing. Compared with the traditional algorithm [1], the accuracy of the cooperative location algorithm is 7.4 cm, which is improved by 29.5%.","PeriodicalId":108635,"journal":{"name":"2019 11th International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132892331","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}
{"title":"Temporal Netgrid Model Based Energy-Efficient Broadcast in Satellite Networks","authors":"Manqing Zhang, Donghui Liu, Weilong Ren, Wuyang Zhou","doi":"10.1109/WCSP.2019.8927986","DOIUrl":"https://doi.org/10.1109/WCSP.2019.8927986","url":null,"abstract":"In recent years, satellite systems have attracted explosive attention for their ability of providing seamless connectivity. Many satellite applications require the broadcast delay to be limited to a certain value. However, due to the high-speed movement of satellites, the network topology changes frequently, making the broadcast routing problem NP-hard. In this paper, we study the delay-constrained minimum energy broadcast problem in satellite networks. Considering the limited-sources in satellite systems, in order to reduce computation complexity and storage requirements, we propose the temporal netgrid model based multi-power level flow graph (MLFG) to describe the time-varying topology instead of using existing space-time graphs. Based on MLFG, an iterative algorithm is proposed to minimize the broadcasting energy consumption while satisfying the delay requirement. Simulations show that our proposed scheme can achieve higher energy efficiency while comparing with other existing methods.","PeriodicalId":108635,"journal":{"name":"2019 11th International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"545 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132151600","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}
{"title":"Coherent Estimation of Range Difference and Range Rate Difference for Unknown Frequency Hopping Signals","authors":"Zhixin Liu, D. Hu, Yongjun Zhao, Yongsheng Zhao, Rui Wang, Hongzhi Jiang","doi":"10.1109/WCSP.2019.8928028","DOIUrl":"https://doi.org/10.1109/WCSP.2019.8928028","url":null,"abstract":"This paper addresses the estimation problem of range difference and range rate difference for unknown frequency hopping signals in passive emitter localization, considering the range migration (RM) of the high-speed moving target within the observation time. A coherent estimation algorithm based on the scaled Fourier transform is proposed. This method can effectively remove the RM and random phase effects. The whole estimation process can be fast implemented without any searching operation. Numerical experiments demonstrate that the estimation performance of proposed algorithm is superior to existing algorithms, and comparable to the maximum likelihood estimator.","PeriodicalId":108635,"journal":{"name":"2019 11th International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125534193","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}
Zedong Zhao, Yong Wang, Mu Zhou, Xiaolong Yang, Liangbo Xie
{"title":"Interference Suppression Based Gesture Recognition Method with FMCW Radar","authors":"Zedong Zhao, Yong Wang, Mu Zhou, Xiaolong Yang, Liangbo Xie","doi":"10.1109/WCSP.2019.8928108","DOIUrl":"https://doi.org/10.1109/WCSP.2019.8928108","url":null,"abstract":"In this paper, we propose a gesture recognition method based on interference suppression with Frequency Modulation Continuous Wave (FMCW)radar. We analyze the sampling point and the time needed for snapshot of radar signal, and estimate the range and doppler parameter of gesture. Afterward, we design a complete background and target interference suppression method for the characteristics of radar signal interference, then use Time Sequential Inflated 3 Dimensions(TS- I3D)network for gesture feature extraction and classification. The experimental results show that the suppression method has effectively solved the problems caused by non-gesture interference, and the average accuracy rate of gesture recognition is 96.67 %.","PeriodicalId":108635,"journal":{"name":"2019 11th International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126686903","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}
Haoming Liu, Chen Gong, Zhengyuan Xu, Jianghua Luo
{"title":"Positioning Error Analysis of Indoor Visible Light Positioning Using Dual Cameras","authors":"Haoming Liu, Chen Gong, Zhengyuan Xu, Jianghua Luo","doi":"10.1109/WCSP.2019.8927927","DOIUrl":"https://doi.org/10.1109/WCSP.2019.8927927","url":null,"abstract":"We analyze the mean squared positioning error of the visible light positioning system with dual cameras. We also build up a experimental system to test the real positioning error. It can be observed that the positioning error along the direction vertical to the line connecting the two cameras is significantly larger than that parallel to such line, and can be well predicted by that from the theoretical analysis. Moreover, we have adopted Gaussian mixture model for the positioning error, which show that two components suffice.","PeriodicalId":108635,"journal":{"name":"2019 11th International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126535307","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}