2017 IEEE/CIC International Conference on Communications in China (ICCC)最新文献_第8页

Uplink channel estimation with basis expansion model and expectation maximization for wireless communication systems on high speed railways 基于基扩展模型和期望最大化的高速铁路无线通信系统上行信道估计

2017 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2017-10-01 DOI: 10.1109/ICCChina.2017.8330387

Xiyu Wang, Gongpu Wang, R. He, Yulong Zou

引用次数: 2

VLC system implementation with white LEDs 用白光led实现VLC系统

2017 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2017-10-01 DOI: 10.1109/ICCChina.2017.8330447

L. Zhang, Wensheng Zhang, Jian Sun

引用次数: 3

Energy-efficient resource allocation in CoMP-SWIPT heterogeneous networks CoMP-SWIPT异构网络中的节能资源分配

2017 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2017-10-01 DOI: 10.1109/ICCChina.2017.8330360

Jie Tang, D. So, Arman Shojaeifard, Kai‐Kit Wong

{"title":"Energy-efficient resource allocation in CoMP-SWIPT heterogeneous networks","authors":"Jie Tang, D. So, Arman Shojaeifard, Kai‐Kit Wong","doi":"10.1109/ICCChina.2017.8330360","DOIUrl":"https://doi.org/10.1109/ICCChina.2017.8330360","url":null,"abstract":"In this paper, a fundamental study of energy efficiency (EE) optimization for coordinated multi-point (CoMP)-simultaneous wireless information and power transfer (SWIPT) heterogeneous networks (HetNets) is provided. We aim to optimize the EE whilst satisfying certain quality-of-service (QoS) requirements in regard to transmission rate and energy harvesting at both the macro-cell and small-cells. The corresponding joint beamforming and power allocation in the presence of intra- and inter-cell interference constitutes a EE maximization problem that is non-convex, and hence very challenging to solve. In order to solve this problem, we propose to separate the beamforming design and power allocation processes. In particular, different from the the conventional linear zero-forcing beamforming where the beneficial interference is removed, a partial zero-forcing approach has been proposed by differentiating the energy harvesting users and information decoding users in order to improve the EE. Our findings show that the EE can be significantly improved through the integration of CoMP-SWIPT in HetNets.","PeriodicalId":418396,"journal":{"name":"2017 IEEE/CIC International Conference on Communications in China (ICCC)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132588568","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

Segmented CS with measurement allocation for UWB channel estimation 用于UWB信道估计的带有测量分配的分段CS

2017 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2017-10-01 DOI: 10.1109/ICCChina.2017.8330323

Jian Li, Yunrui Qin, Deqiang Wang

引用次数: 1

A linear predictive coding based compression algorithm for fronthaul link in C-RAN 基于线性预测编码的C-RAN前传链路压缩算法

2017 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2017-10-01 DOI: 10.1109/ICCChina.2017.8330421

Guangjin Chen, Fangliao Yang, K. Niu, Chao Dong

{"title":"A linear predictive coding based compression algorithm for fronthaul link in C-RAN","authors":"Guangjin Chen, Fangliao Yang, K. Niu, Chao Dong","doi":"10.1109/ICCChina.2017.8330421","DOIUrl":"https://doi.org/10.1109/ICCChina.2017.8330421","url":null,"abstract":"This paper focuses on the data compression for fron-thaul link in cloud radio access network (C-RAN). We introduce a linear predictive coding (LPC) based compression algorithm, which includes three main modules, linear predictor, piecewise quantizer and arithmetic coding. The linear predictor is used to eliminate redundancies caused by the correlations of LTE signals. According to the distribution characteristics of the output from the linear predictor, a piecewise quantizer is designed to decrease the quantization noise. To get extra coding gain, arithmetic coding is applied based on the output codebook from the piecewise quantizer. Furthermore, an alphabet reconstruction scheme is proposed to reduce the complexity of arithmetic encoding and decoding. Omitting the up/down-sampling and low-pass filtering operation in traditional schemes, our solution has simpler structure, but demonstrates better compression performance with comparable computational complexity. Remarkably, our scheme presents strong flexibility to different load ratios. Taking 40% load ratio as an example, within 2% error vector magnitude (EVM) distortion, our algorithm can achieve 23% compression ratio for uplink and 17% compression ratio for downlink, which has nearly 15% gain compared with the traditional algorithm.","PeriodicalId":418396,"journal":{"name":"2017 IEEE/CIC International Conference on Communications in China (ICCC)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128602842","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

WiFi-based contactless activity recognition on smartphones 基于wifi的智能手机非接触式活动识别

2017 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2017-10-01 DOI: 10.1109/ICCChina.2017.8330322

Yuhe Zhang, Lin Zhang

{"title":"WiFi-based contactless activity recognition on smartphones","authors":"Yuhe Zhang, Lin Zhang","doi":"10.1109/ICCChina.2017.8330322","DOIUrl":"https://doi.org/10.1109/ICCChina.2017.8330322","url":null,"abstract":"Activity recognition is necessary for the interaction between information sensing devices and users. Currently, vision-based and sensor-based methods are widely used. However, most existing systems based on sensors can only work in some fixed locations where sensors have been installed; visionbased systems have requirement on the scope of vision and devices. In this paper, we propose a system that utilizes WiFi Received Signal Strength Indicator(RSSI) in a smartphone for the recognition of activity. It has two advantages: one is that it is contactless and the other is that the hardware facilities are more universal. The system uses the classifiers and Convolutional Neural Networks (CNNs) to train the relation model between the WiFi signals and the activities. We took about one month to obtain continuous data of WiFi device in the same conditions and analyzed the challenge and lessons of the case studies of building a model that can address this nonlinear relationship problem. We made groups experiments to analyze RSSI and made comparison tests base on Channel State Information(CSI). The result of experiments shows the potential of utilizing WiFi signals of the environment for ambient stimuli by human via smartphones. As a preliminary exploration for activity classification, the system utilizing RSSI achieved a mean average precision of 95% based on four Machine Learning methods and up to 97.7% based on CNNs.","PeriodicalId":418396,"journal":{"name":"2017 IEEE/CIC International Conference on Communications in China (ICCC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134143612","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

Queue-theory-based protocol block allocation algorithm for software defined wireless network 基于队列理论的软件无线网络协议块分配算法

2017 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2017-10-01 DOI: 10.1109/ICCChina.2017.8330414

Lingyun Zhou, Jun Liu, Jinle Zhu, Wei Tang, Hui Hao

引用次数: 0

Relay selection and link scheduling in cooperative free-space optical backhauling of 5G small cells 5G小蜂窝协同自由空间光回程中继选择与链路调度

2017 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2017-10-01 DOI: 10.1109/ICCChina.2017.8330446

Song Song, Yejun Liu, Qingyang Song, Lei Guo

引用次数: 8

Joint energy cooperation and resource allocation in C-RANs with hybrid energy sources 混合能源c - ran的联合能源合作与资源配置

2017 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2017-10-01 DOI: 10.1109/ICCChina.2017.8330520

Yadong Li, Changchuan Yin

引用次数: 4

A modified LBT mechanism and performance enhancement for LTE-U/WiFi co-existence LTE-U/WiFi共存的改进LBT机制和性能增强

2017 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2017-10-01 DOI: 10.1109/ICCChina.2017.8330330

J. Dai, Cong Shen

引用次数: 2