2015 International Conference on Wireless Communications & Signal Processing (WCSP)最新文献_第8页

An SCMA-based uplink inter-cell interference cancellation technique for 5G wireless systems 基于scma的5G无线系统上行小区间干扰消除技术

2015 International Conference on Wireless Communications & Signal Processing (WCSP) Pub Date : 2015-12-03 DOI: 10.1109/WCSP.2015.7341306

Yi Li, Xianfu Lei, P. Fan, Dageng Chen

{"title":"An SCMA-based uplink inter-cell interference cancellation technique for 5G wireless systems","authors":"Yi Li, Xianfu Lei, P. Fan, Dageng Chen","doi":"10.1109/WCSP.2015.7341306","DOIUrl":"https://doi.org/10.1109/WCSP.2015.7341306","url":null,"abstract":"In future 5G wireless networks, inter-cell interference (ICI) is perceived as one of the most critical performance bottlenecks. Traditionally, the interference is treated as an additional source of noise, recent advances in information theory show that interference is not necessarily an opponent, but might be decoded and cancelled to obtain a larger capacity region. In this paper, a sparse code multiple access (SCMA) based uplink ICI cancellation technique is proposed to enhance the performance of the cell-edge users by jointly decoding the desired signal and the interference signal at the base stations. Unlike the orthogonal transmission schemes such as fractional frequency reuse in 4G, the proposed non-orthogonal SCMA-based scheme allows several cell-edge users to share the same time-frequency resource blocks (RBs). The sparse codewords are designed to make each user spread its data on a small set of RBs to achieve frequency and interference diversity, and make the near-optimal detection feasible with moderate complexity through iterative message passing algorithm (MPA). Then an open-loop MIMO transmission scheme which combines SCMA with Alamouti code is proposed to achieve full space-time-frequency diversity. Simulation results show that when there is no correlation among resource blocks and the antenna configuration is 1×1, the proposed SCMA-based scheme has about 2dB gain for uplink cell-edge users in multi-cell scenario compared with the FFR-based ICI coordination scheme in LTE networks. The gain becomes larger when combined with the existing MIMO technique. In addition, the SCMA-based scheme is also proved to be more robust to the burst interference.","PeriodicalId":164776,"journal":{"name":"2015 International Conference on Wireless Communications & Signal Processing (WCSP)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130641830","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: 9

Relative depth estimation with an uncalibrated camera for image refocus 相对深度估计与一个未校准的相机图像重新聚焦

2015 International Conference on Wireless Communications & Signal Processing (WCSP) Pub Date : 2015-12-03 DOI: 10.1109/WCSP.2015.7341011

Qiuyan Tao, Jianing Li, Lianghao Wang, Ming Zhang

引用次数: 0

Energy-efficient and scalable clustering scheme for wireless sensor networks 无线传感器网络的节能可扩展聚类方案

2015 International Conference on Wireless Communications & Signal Processing (WCSP) Pub Date : 2015-12-03 DOI: 10.1109/WCSP.2015.7341304

Hai-xia Peng, Shuaizong Si, Xuemin Shen, Hai Zhao

{"title":"Energy-efficient and scalable clustering scheme for wireless sensor networks","authors":"Hai-xia Peng, Shuaizong Si, Xuemin Shen, Hai Zhao","doi":"10.1109/WCSP.2015.7341304","DOIUrl":"https://doi.org/10.1109/WCSP.2015.7341304","url":null,"abstract":"Wireless sensor networks (WSNs), comprising a larger number of battery-powered sensor nodes for event monitoring and data gathering, have been widely deployed into various military and industrial applications. Since most of WSN applications aim to make full use of the energy-limited sensor nodes to monitor a wide area for a long time, energy efficiency and scalability become two important performance metrics for WSNs. Clustering has been proved to be an effective way to improve energy efficiency and network lifetime for WSNs. However, with the increasing scale of WSNs, existing clustering schemes would face significant limitations in improving energy efficiency and prolonging network lifetime. Inspired by the similar features between large scale WSNs and complex networks, some analysis methods in complex networks can be utilized to address these limitations. In this paper, we propose a clustering scheme, named Energy-aware and Scalable Clustering Scheme (ESCS), to enhance the energy efficiency and scalability in WSNs. The proposed scheme is based on the inherent characteristics of WSNs and evolution idea of Barabasi-Albert (BA) model. Extensive simulation results demonstrate that ESCS can prolong the network lifetime and significantly improve the scalability of WSNs.","PeriodicalId":164776,"journal":{"name":"2015 International Conference on Wireless Communications & Signal Processing (WCSP)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133411491","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

Power control for relay-assisted device-to-device communication underlaying cellular networks 蜂窝网络底层中继辅助设备对设备通信的功率控制

2015 International Conference on Wireless Communications & Signal Processing (WCSP) Pub Date : 2015-12-03 DOI: 10.1109/WCSP.2015.7341217

Jianfeng Shi, Li Tao, Ming Chen, Zhaohui Yang

引用次数: 9

Dynamic channel modeling for communication through turbulent plasma sheath 紊流等离子体鞘层通信的动态信道建模

2015 International Conference on Wireless Communications & Signal Processing (WCSP) Pub Date : 2015-12-03 DOI: 10.1109/WCSP.2015.7341196

Jingzhuo Zhang, Guolong He, Peng Bai, Ning Ge

引用次数: 2

A novel satellite selecting algorithm for BeiDou navigation satellite system 一种新的北斗卫星导航系统卫星选择算法

2015 International Conference on Wireless Communications & Signal Processing (WCSP) Pub Date : 2015-12-03 DOI: 10.1109/WCSP.2015.7341049

Wen Li, Lidong Zhu

引用次数: 3

Signal detection and BER analysis for RF-powered devices utilizing ambient backscatter 利用环境反向散射的射频供电设备的信号检测和误码率分析

2015 International Conference on Wireless Communications & Signal Processing (WCSP) Pub Date : 2015-12-03 DOI: 10.1109/WCSP.2015.7341107

K. Lu, Gongpu Wang, Fengzhong Qu, Z. Zhong

引用次数: 48

A routing algorithm based on node selfishness and buffer management in delay tolerant networks 时延容忍网络中基于节点自利和缓冲区管理的路由算法

2015 International Conference on Wireless Communications & Signal Processing (WCSP) Pub Date : 2015-12-03 DOI: 10.1109/WCSP.2015.7341040

Xiaoqiong Xu, Zhaorong Zhou, Liu Yang, Li Li

{"title":"A routing algorithm based on node selfishness and buffer management in delay tolerant networks","authors":"Xiaoqiong Xu, Zhaorong Zhou, Liu Yang, Li Li","doi":"10.1109/WCSP.2015.7341040","DOIUrl":"https://doi.org/10.1109/WCSP.2015.7341040","url":null,"abstract":"Recently, great efforts have been devoted to the research of routing algorithms in delay tolerant networks, but existing works mainly focus on the positive social properties to design routing algorithms, in which nodes are supposed to be willing to help others carry and forward messages, few involve the negative social properties, such as selfishness. However, in reality, the resources of mobile nodes are limited, and helping others to carry and forward messages result in resource depletion. Therefore, mobile nodes behave selfishly to some degree along with the available resources. Furthermore, different messages may belong to different service types with different priorities and compete for finite buffer room. In order to guarantee the quality of service, the issues of node selfishness and buffer management should be taken into account in routing algorithms. Consequently, by combining the social properties of node selfishness and degree centrality, we propose an innovative routing algorithm with the buffer management mechanism designed according to message priority. The extensive experiments with the real world traces are conducted and the corresponding simulation results demonstrate that our proposed algorithm can improve the message delivery probability with low network overhead, and performs better than existing routing algorithms.","PeriodicalId":164776,"journal":{"name":"2015 International Conference on Wireless Communications & Signal Processing (WCSP)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116694838","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

Monte-Carlo based modeling for ultraviolet non-line-of-sight communication channels with typical obstacles 具有典型障碍物的紫外非视距通信信道的蒙特卡罗建模

2015 International Conference on Wireless Communications & Signal Processing (WCSP) Pub Date : 2015-12-03 DOI: 10.1109/WCSP.2015.7341253

C. Xu, Hongming Zhang

引用次数: 1

Design and experiment of frequency offset estimation and compensation in high-speed underwater acoustic communication 高速水声通信中频偏估计与补偿的设计与实验

2015 International Conference on Wireless Communications & Signal Processing (WCSP) Pub Date : 2015-12-03 DOI: 10.1109/WCSP.2015.7341189

Yunqiang Bi, Zhiqiang He, Weipeng Jiang, K. Niu, Y. Rong

引用次数: 5