2014 IEEE/CIC International Conference on Communications in China (ICCC)最新文献_第7页

Effect of fiber nonlinearity on the power budget for direct detection OFDM-PON 光纤非线性对直接检测OFDM-PON功率预算的影响

2014 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2014-10-01 DOI: 10.1109/ICCCHINA.2014.7008257

Bangjiang Lin, Juhao Li, Hui Yang, Yongqi He, Zhangyuan Chen

引用次数: 2

Improved sphere decoding algorithm with low complexity for MIMO systems MIMO系统中改进的低复杂度球面解码算法

2014 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2014-10-01 DOI: 10.1109/ICCCHINA.2014.7008234

Y. Sonoda, Hua-An Zhao

引用次数: 1

Optimization of downtilts adjustment combining joint transmission and 3D beamforming in 3D MIMO 三维MIMO中联合传输与三维波束形成相结合的下倾角调整优化

2014 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2014-10-01 DOI: 10.1109/ICCCHINA.2014.7008371

Zehua Wei, Ying Wang, Wenxuan Lin

{"title":"Optimization of downtilts adjustment combining joint transmission and 3D beamforming in 3D MIMO","authors":"Zehua Wei, Ying Wang, Wenxuan Lin","doi":"10.1109/ICCCHINA.2014.7008371","DOIUrl":"https://doi.org/10.1109/ICCCHINA.2014.7008371","url":null,"abstract":"This paper mainly proposes a downtilts adjustment scheme combining joint transmission (JT) and 3-dimension (3D) beamforming in 3D multiple-input multiple-output (MIMO) communication systems, under the new typical scenario in the 3rd generation partnership project (3GPP) which is defined as urban macro cell with one high-rise per sector (3D UMa-H). In our proposed scheme, the specific downtilts adjustment for cellcenter users and cell-edge users are realized through dynamic vertical beamforming. Moreover, the cell-center users are served by 3D beamforming, while the cell-edge users are served by JT and 3D beamforming, which facilitate to maximize both cell-center users' and cell-edge users' throughput. To achieve accurate performance evaluation, 3D spatial channel model (3D SCM) and 2-dimension (2D) planar antenna array structure are also considered in our system-level simulation. Simulation results show that our proposed scheme can achieve about 35% gain on cell average spectral efficiency and 42% gain on cell edge user spectral efficiency compared to traditional 2D MIMO without JT.","PeriodicalId":353402,"journal":{"name":"2014 IEEE/CIC International Conference on Communications in China (ICCC)","volume":"17 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":"114118473","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

Indoor channel measurements and analysis of a large-scale antenna system at 5.6 GHz 5.6 GHz大型天线系统的室内信道测量与分析

2014 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2014-10-01 DOI: 10.1109/ICCCHINA.2014.7008287

Jinxing Li, Youping Zhao, Z. Tan

{"title":"Indoor channel measurements and analysis of a large-scale antenna system at 5.6 GHz","authors":"Jinxing Li, Youping Zhao, Z. Tan","doi":"10.1109/ICCCHINA.2014.7008287","DOIUrl":"https://doi.org/10.1109/ICCCHINA.2014.7008287","url":null,"abstract":"Large-scale antenna systems provide a promising way to increase spectral and energy efficiency with a very large number of antennas at the base station serving many tens of users simultaneously. However, to a large extent, the theoretical performance relies on some fundamental assumptions of the radio environment, which need to be validated in realistic propagation scenarios. In this study we focus on indoor channel measurement and analysis in a large hall with a virtual 12×12 rectangular array. Key channel characteristics, such as the received power, delay spread, correlation between antennas and different user channels, condition number among user group channel matrix and system capacity, are analyzed and compared with previous works in outdoor and outdoor-indoor scenarios. The results show that the channel correlation between antennas and users decreases to some certain extent as the number of antennas increases, while system capacity does not show an obvious ceiling effect as the antenna number grows. Besides, the characteristics of indoor channel have differences from those in other scenarios.","PeriodicalId":353402,"journal":{"name":"2014 IEEE/CIC International Conference on Communications in China (ICCC)","volume":"61 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":"114470269","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

Toward multi-layer partial frequency reuse in future mobile communication systems 面向未来移动通信系统的多层部分频率复用

2014 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2014-10-01 DOI: 10.1109/ICCCHINA.2014.7008356

Lusheng Wang, F. Fang, Kewei Min, N. Nikaein, L. Cottatellucci

引用次数: 4

Evaluation on anti-interference to WLAN equipments for spatial deployment of CBTC systems in tunnels 隧道CBTC系统空间部署对WLAN设备的抗干扰性评价

2014 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2014-10-01 DOI: 10.1109/ICCCHINA.2014.7008241

Xiaofan Li, Q. Song, Hongbo Tao, Xiaoyong Liu, Sha Zhang, Xiaobo Wang, Qun Luo, Xiao Peng

引用次数: 9

GTR: A novel routing scheme based on game theory in opportunistic networks GTR:一种基于博弈论的机会网络路由方案

2014 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2014-10-01 DOI: 10.1109/ICCCHINA.2014.7008381

Yang Qin, Li Li, Hu Liu

{"title":"GTR: A novel routing scheme based on game theory in opportunistic networks","authors":"Yang Qin, Li Li, Hu Liu","doi":"10.1109/ICCCHINA.2014.7008381","DOIUrl":"https://doi.org/10.1109/ICCCHINA.2014.7008381","url":null,"abstract":"Existing routing schemes in opportunistic networks can be classified two categories: multi-copy based schemes and single-copy based schemes. Multi-copy based schemes can increase the robustness of networks and reduce average delay. However, they consume a large amount of network resources and induce large overhead. Single-copy based schemes can save network resources, but it is difficult to guarantee the transmission delay and packet delivery ratio for these schemes. Hence, how to design an efficient routing scheme which can make a tradeoff between multi-copy schemes and single-copy schemes in opportunistic networks with limited resources is a challenging issue. Inspired by this issue, in this paper, we propose a novel routing scheme based on game theory in opportunistic networks under limited resources, named GTR. In GTR, we map the message transmission to a multi-player bargaining model. By constructing proper utility function, GTR can save the network resources, and achieve better performance in dense opportunistic networks. Our extensive simulation results also demonstrate this point, and GTR performs better compared to some classical routing schemes in terms of packet delivery ratio, average delay, overhead ratio and average hops.","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":"129138359","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

Fast event detection on big time series 大时间序列的快速事件检测

2014 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2014-10-01 DOI: 10.1109/ICCCHINA.2014.7008296

Shusi Yu, Lei Gu, Wentao Dai

引用次数: 1

Throughput performance and fairness in multihop wireless mesh networks 多跳无线网状网络的吞吐量性能和公平性

2014 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2014-10-01 DOI: 10.1109/ICCCHINA.2014.7008398

Mingsheng Gao, Hui Jiang

{"title":"Throughput performance and fairness in multihop wireless mesh networks","authors":"Mingsheng Gao, Hui Jiang","doi":"10.1109/ICCCHINA.2014.7008398","DOIUrl":"https://doi.org/10.1109/ICCCHINA.2014.7008398","url":null,"abstract":"In IEEE 802.11-based multihop wireless mesh networks (WMNs), nodes that are a number of hops away from the gateway (GW) face two-fold contentions: namely channel access contention between itself and other nodes, and traffic contention between its own and relayed traffic. As a result, they suffer from low throughput and even starvation, which results in unfairness in transmissions. In this paper, we develop a rate control mechanism that can flexibly coordinate the tradeoff between throughput and fairness to adapt to different application scenarios by combining a rate adaptation algorithm, an adaptive capacity estimation algorithm and a queue management scheme. More specifically, with the adaptation algorithm, nodes can dynamically change their rates according to the number of flows observed or to the updated rate overheard; with the adaptive capacity estimation algorithm, nodes can adjust their rates by varying the fairness index provided that a certain fairness index threshold is satisfied; while the queue management scheme enables nodes to transmit their data packets originated from different flows (including their local flows) in a proportional manner. To evaluate the effectiveness of the proposed scheme, we demonstrate its performance via ns-2 simulations in terms of throughput, fairness as well as convergence property.","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":"126385105","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

Graph-based resource allocation for device-to-device communications aided cellular network 设备对设备通信辅助蜂窝网络的基于图的资源分配

2014 IEEE/CIC International Conference on Communications in China (ICCC) Pub Date : 2014-10-01 DOI: 10.1109/ICCCHINA.2014.7008282

J. Hao, Hongliang Zhang, Lingyang Song, Zhu Han

引用次数: 10