2016 IEEE/CIC International Conference on Communications in China (ICCC Workshops)最新文献_第2页

Clock synchronization compensation of Time-Triggered Ethernet based on least squares algorithm 基于最小二乘算法的时间触发以太网时钟同步补偿

2016 IEEE/CIC International Conference on Communications in China (ICCC Workshops) Pub Date : 2016-07-27 DOI: 10.1109/ICCCHINAW.2016.7586706

Yingjing Zhang, Feng He, Guangshan Lu, Huagang Xiong

{"title":"Clock synchronization compensation of Time-Triggered Ethernet based on least squares algorithm","authors":"Yingjing Zhang, Feng He, Guangshan Lu, Huagang Xiong","doi":"10.1109/ICCCHINAW.2016.7586706","DOIUrl":"https://doi.org/10.1109/ICCCHINAW.2016.7586706","url":null,"abstract":"Time-Triggered (TT) communication, which enhances real-time requirement and packets transmission certainty, can satisfy the requirements of Distributed Integrated Modular Avionic (DIMA). Due to clock skew between source end and destination systems, the end to end performance is inaccurate. Therefore, clock synchronization service is crucial for TT messages transmission in Time-Triggered Ethernet (TTEthernet). There are two kinds of clock synchronization services: external synchronization service and internal synchronization service. The main difference between two services is the presence of a standard time basis. As an internal synchronization service standard of TTEthernet, AS6802 is used to calculate the average difference between timestamp values of end systems in TTEthernet. However, the clock compensation policy after calculation has not been discussed. In this paper, the compensated algorithm based on modified least squares (LS) is proposed. The clock skew can be eliminated online by LS method to get clocks perfectly synchronized. First, the basic theories about reasons of clock offset are analyzed and the process of clock synchronization in TTEthernet is researched; second, the drifted rates of clocks are changed incessantly due to temperature variation or aging. On that account, clocks are modeled as accurately as possible; besides, the simulation platform is built, including end systems, switch models, network topology to verify the effectiveness of the compensated algorithm; finally, the method of this paper compares with the traditional compensation policies. Simulation shows algorithm in the paper can obtain better clock synchronization precision than other algorithms.","PeriodicalId":125877,"journal":{"name":"2016 IEEE/CIC International Conference on Communications in China (ICCC Workshops)","volume":"203 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124290675","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

Full duplex state transition analysis for MAC sublayer state machine of CCSDS Proximity-1 基于CCSDS的MAC子层状态机的全双工状态转换分析

2016 IEEE/CIC International Conference on Communications in China (ICCC Workshops) Pub Date : 2016-07-27 DOI: 10.1109/ICCCHINAW.2016.7586714

Laibo Zheng, Zijing Cheng

引用次数: 1

A dynamic pilot interval adjustment scheme for HBC channel estimation 一种HBC信道估计的动态导频间隔调整方案

2016 IEEE/CIC International Conference on Communications in China (ICCC Workshops) Pub Date : 2016-07-27 DOI: 10.1109/ICCCHINAW.2016.7586721

Yan Zhang, Baohua Kou, Dandan Fan, Yang Liu, Zunwen He, Xiang Chen

{"title":"A dynamic pilot interval adjustment scheme for HBC channel estimation","authors":"Yan Zhang, Baohua Kou, Dandan Fan, Yang Liu, Zunwen He, Xiang Chen","doi":"10.1109/ICCCHINAW.2016.7586721","DOIUrl":"https://doi.org/10.1109/ICCCHINAW.2016.7586721","url":null,"abstract":"As one important part of Internet of Things (IoT), wireless body area networks (WBANs) get rapid development in recent years. The majority of current WBAN researchers focus on the radio frequency (RF) solutions. However, there are still some intrinsic defects in the RF-based WBANs. Recently, human body communication (HBC) has been proposed in which the body itself is used as the propagation medium. To achieve high spectrum efficiency and power efficiency by HBC, one critical work is to acquire the channel information. In this paper, the HBC channel fading characteristics are measured and summarized. It is shown that the HBC channel is influenced by the body shape instead of the outside environment. When human body is in movement, normal random process can be used to describe the variations of HBC channel fading. Then, we propose a dynamic pilot interval adjustment scheme for HBC channel estimation. By applying this scheme, the pilot intervals in time domain can be adjusted along with the time-varying channel fading. The performance of the proposed scheme is evaluated by using measurement-based HBC channel fading model. It is proved that this scheme can substantially reduce the number of pilots without losing much accuracy and it can be beneficial for saving energy in the HBC networks.","PeriodicalId":125877,"journal":{"name":"2016 IEEE/CIC International Conference on Communications in China (ICCC Workshops)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124547083","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

Toward secure internet of things via hybrid forwarding and opportunistic relaying 通过混合转发和机会中继实现安全的物联网

2016 IEEE/CIC International Conference on Communications in China (ICCC Workshops) Pub Date : 2016-07-27 DOI: 10.1109/ICCCHINAW.2016.7586726

Caihong Han, Li Sun, Pinyi Ren, Yichen Wang

引用次数: 1

Impact of high mobility on constant envelope precoded multi-user massive MIMO systems 高移动性对恒包络预编码多用户大规模MIMO系统的影响

2016 IEEE/CIC International Conference on Communications in China (ICCC Workshops) Pub Date : 2016-07-27 DOI: 10.1109/ICCCHINAW.2016.7586718

Xiaonan Ruan, Li Bing, B. Bai

引用次数: 1

Reviews of recent progress on low-complexity linear detection via iterative algorithms for massive MIMO systems 基于迭代算法的大规模MIMO系统低复杂度线性检测研究进展综述

2016 IEEE/CIC International Conference on Communications in China (ICCC Workshops) Pub Date : 2016-07-27 DOI: 10.1109/ICCCHINAW.2016.7586723

Zhenyu Zhang, Juan Wu, Xinli Ma, Yuanyuan Dong, Yingmin Wang, Shanzhi Chen, Xiaoming Dai

{"title":"Reviews of recent progress on low-complexity linear detection via iterative algorithms for massive MIMO systems","authors":"Zhenyu Zhang, Juan Wu, Xinli Ma, Yuanyuan Dong, Yingmin Wang, Shanzhi Chen, Xiaoming Dai","doi":"10.1109/ICCCHINAW.2016.7586723","DOIUrl":"https://doi.org/10.1109/ICCCHINAW.2016.7586723","url":null,"abstract":"Massive multiple-input multiple-output (M-MIMO) can significantly enhance the spectrum efficiency of cellular networks by deploying hundreds of active elements at the base stations and is envisaged to become the key technology in 5th generation (5G) cellular networks. However, the large number of antennas required brings about tremendous challenges for practical implementation, especially for separation of the multiplexed data. Iterative approaches, such as Jacobi, Richardson, Gauss-Seidel (GS), successive overrelaxation (SOR), and symmetric successive overrelaxation (SSOR) have received great attention recently due to their low-complexity and high performance for signal detection. In this work, we provide a comprehensive review of recent progress in iterative based signal detection for massive MIMO systems. The system model of an iterative method based minimum mean square error (MMSE) signal detection is provided. The convergence behavior and complexity of the iterative approach based detectors are analyzed. Numerical results show that the iterative algorithm-based detectors can achieve a performance close to the classical MMSE detector with significantly less computational complexity.","PeriodicalId":125877,"journal":{"name":"2016 IEEE/CIC International Conference on Communications in China (ICCC Workshops)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131888308","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: 22

An algebraic approach for verifying compositions of SDN components 验证SDN组件组成的代数方法

2016 IEEE/CIC International Conference on Communications in China (ICCC Workshops) Pub Date : 2016-07-27 DOI: 10.1109/ICCCHINAW.2016.7586712

Xu Yuzhuang, Hu Kai, Jiehua Huang, Wu Kai

{"title":"An algebraic approach for verifying compositions of SDN components","authors":"Xu Yuzhuang, Hu Kai, Jiehua Huang, Wu Kai","doi":"10.1109/ICCCHINAW.2016.7586712","DOIUrl":"https://doi.org/10.1109/ICCCHINAW.2016.7586712","url":null,"abstract":"Due to heterogeneity of protocols and time-variation of topology in space information network, Software-Defined Networking (SDN) begins to be used as a novel network architecture. SDN facilitates flexible, scalable and efficient network management, through separating control plane from data plane, thus enabling huge innovation. Network can be easily built, maintained and extended by developing upper SDN applications using API supplied by SDN controller. Similar to general software, modular and componentized development method can increase the reusability of SDN application modules and therefore shorten development period. By composing components already tested or verified, complicated network control functions can be easily constructed. However, it is a problem to ensure the correctness of the network application composed. Verification is a useful means besides testing, but there is a `composition explosion' problem because of plenty of components to compose. This paper proposes an algebraic system, Verification Algebra(VA), for reducing verification transactions when verifying compositions of SDN components. Rules are defined in VA to eliminate configurations or interactions for future verification, based on the existing results of compositions. Multi-tenant network configuration verification is also supported by the algebraic approach proposed in this paper.","PeriodicalId":125877,"journal":{"name":"2016 IEEE/CIC International Conference on Communications in China (ICCC Workshops)","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131604818","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

Efficient seamless rate compatible modulation 高效无缝速率兼容调制

2016 IEEE/CIC International Conference on Communications in China (ICCC Workshops) Pub Date : 2016-07-27 DOI: 10.1109/ICCCHINAW.2016.7586707

Ji Luo, Yajun Ren, Yong-bo Zhao, Zhiping Shi

引用次数: 1

A framework for energy efficient control in heterogeneous cloud radio access networks 异构云无线接入网络中节能控制的框架

2016 IEEE/CIC International Conference on Communications in China (ICCC Workshops) Pub Date : 2016-07-27 DOI: 10.1109/ICCCHINAW.2016.7586713

Y. Zhang, Ying Wang

{"title":"A framework for energy efficient control in heterogeneous cloud radio access networks","authors":"Y. Zhang, Ying Wang","doi":"10.1109/ICCCHINAW.2016.7586713","DOIUrl":"https://doi.org/10.1109/ICCCHINAW.2016.7586713","url":null,"abstract":"The exponential growth in the mobile data traffic promotes the evolution of the infrastructure, while takes grate challenges for designing 5G network, such as significant amount of energy consumption and expenses, huge complexity on operation and lack of flexibility on management. Software defined network (SDN) and cloud computing are the two promising technologies for the future network due to their advantages in simplicity and efficiency in operation. Heterogeneous cloud radio access network (H-CRAN) architecture is characterized by the attributes of both SDN and cloud computing, which brings significant improvements on system performance. while the intra-tier interference among remote radio units (RRHs) especially the inter-tier interference between RRHs and high power node (HPN) affect the spectral efficiency (SE) and energy efficiency (EE) performance. To mitigate the inter-tier interference and improve system performance of H-CRANs, the interference coordination technology is considered. In this paper, the transmit power for RRHs and HPNs are optimized to maximize system EE. The optimization problem with total allowed power constrains is developed. To deal with the non-convexity, based on the Dinkelbach method and the duality gap theorem, an equivalent convex problem is transformed. Through the dual decomposition method, the optimal power allocation for RRH and HPN are derived. Numerical results show that the proposed scheme can improve the EE of H-CRANs compared with the comparison scheme.","PeriodicalId":125877,"journal":{"name":"2016 IEEE/CIC International Conference on Communications in China (ICCC Workshops)","volume":"8 1-2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132242406","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

On compressive CSI feedback beamforming scheme for FDD massive MIMO FDD大规模MIMO压缩CSI反馈波束形成方案研究

2016 IEEE/CIC International Conference on Communications in China (ICCC Workshops) Pub Date : 2016-07-27 DOI: 10.1109/ICCCHINAW.2016.7586717

Zheng Jiang, B. Han, Liang Lin, Peng Chen, Fengyi Yang, Q. Bi

引用次数: 4