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2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC)最新文献

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Performance evaluation of inter-cell interference coordination with multiple interference pattern based on proportional fair criteria 基于比例公平准则的多干扰图小区间干扰协调性能评价
2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC) Pub Date : 2017-12-01 DOI: 10.1109/WPMC.2017.8301893
Yusaku Kanehira, N. Miki
{"title":"Performance evaluation of inter-cell interference coordination with multiple interference pattern based on proportional fair criteria","authors":"Yusaku Kanehira, N. Miki","doi":"10.1109/WPMC.2017.8301893","DOIUrl":"https://doi.org/10.1109/WPMC.2017.8301893","url":null,"abstract":"To support the continuous growth of mobile traffic, small cell deployments, which increase the base station (BS) density holds great promise. In small cell deployments, the combined usage of user association and inter-cell interference coordination (ICIC) is inevitable. This paper investigates the joint optimization of user association and various ICIC schemes based on the computer simulation. Our evaluation includes the partial frequency reuse and soft frequency reuse as ICIC schemes. We also evaluate the influence of power reduction, user density, and user distribution. Based on the simulation results, it is beneficial to employ \"soft\" frequency reuse (without completely stopping the transmission) and apply our ICIC optimization scheme to obtain good performance from the viewpoint of proportional fairness.","PeriodicalId":239243,"journal":{"name":"2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125120675","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
Performance analysis and optimization for downlink distributed MIMO systems 下行分布式MIMO系统的性能分析与优化
2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC) Pub Date : 2017-12-01 DOI: 10.1109/WPMC.2017.8301861
Jiancun Fan
{"title":"Performance analysis and optimization for downlink distributed MIMO systems","authors":"Jiancun Fan","doi":"10.1109/WPMC.2017.8301861","DOIUrl":"https://doi.org/10.1109/WPMC.2017.8301861","url":null,"abstract":"In this paper, we analyze and optimize the ergodic capacity for a downlink multi-cell multi-user distributed multiple input multiple output (MIMO) system. We first derive the system ergodic capacity by using the approximated Gamma distribution. In order to maximize the system capacity, an optimization problem with respect to the number of remote access unit (RAU) antennas and the number of users is formulated. Then an iteration algorithm is proposed to obtain the optimization configuration of RAU antennas and users. Our simulation results show that the proposed algorithm can obtain the optimal configuration of RAU antennas and supportable users to maximize the system ergodic capacity.","PeriodicalId":239243,"journal":{"name":"2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"89 3-4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114013103","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
An image based undetectable steganographic technique (ImUST) 一种基于图像的不可检测隐写技术
2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC) Pub Date : 2017-12-01 DOI: 10.1109/WPMC.2017.8301883
Vaibhav B. Joshi, M. Raval
{"title":"An image based undetectable steganographic technique (ImUST)","authors":"Vaibhav B. Joshi, M. Raval","doi":"10.1109/WPMC.2017.8301883","DOIUrl":"https://doi.org/10.1109/WPMC.2017.8301883","url":null,"abstract":"Steganography is a science of secure communication. It is challenged by a binary steganalyzer which predicts presence or absence of a hidden message within a cover media. Recently proposed quantitative steganalyzers go a step beyond binary detection and estimates the hidden message length. In this paper, we propose a novel image based steganographic technique. A preprocessing step is introduced to minimize distortion and the message is embedded using histogram shifting. The statistical features of an image do not change significantly after embedding. We show that the proposed technique remains undetectable to state-of-the-art; binary and quantitative steganalyzers while the message remains undetectable. The preprocessing also enables iterative embedding, generating higher steganographic capacity than state-of-the-art.","PeriodicalId":239243,"journal":{"name":"2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115588238","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
Optimized adaptive modulation with considering mobile relay on FSS-OFDM system FSS-OFDM系统中考虑移动中继的优化自适应调制
2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC) Pub Date : 2017-12-01 DOI: 10.1109/WPMC.2017.8301847
S. Kojima, Ken Teduka, K. Maruta, C. Ahn
{"title":"Optimized adaptive modulation with considering mobile relay on FSS-OFDM system","authors":"S. Kojima, Ken Teduka, K. Maruta, C. Ahn","doi":"10.1109/WPMC.2017.8301847","DOIUrl":"https://doi.org/10.1109/WPMC.2017.8301847","url":null,"abstract":"This paper proposes an adaptive modulation on frequency symbol spreading (FSS) based orthogonal frequency division multiplexing (OFDM) relay system with considering the mobility of relay node. Wireless communications often suffer from large propagation loss due to shadowing and multipath fading. As a solution to this problem, Relay communications, which forward data messages from source to destination via intermediate station(s), have been focused on. It can obtain the space diversity and expand the area coverage. However, here arises an another issue on relaying how to deploy relay nodes in an efficient manner. In this paper, we present a whole system design of FSS-OFDM employing an adaptive modulation considering mobility of relay node. Exploiting a good match of an adaptive modulation and FSS, throughput performance can be significantly improved. Computer simulation verifies its effectiveness and reveals the proposed system is the most valuable means which realizes the flexible relay node deployment.","PeriodicalId":239243,"journal":{"name":"2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123921368","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
Spectral efficiency enhancements utilizing analog RF frontend in-band interference cancellation 频谱效率提高利用模拟射频前端带内干扰消除
2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC) Pub Date : 2017-12-01 DOI: 10.1109/WPMC.2017.8301792
U. Jha, F. Harris
{"title":"Spectral efficiency enhancements utilizing analog RF frontend in-band interference cancellation","authors":"U. Jha, F. Harris","doi":"10.1109/WPMC.2017.8301792","DOIUrl":"https://doi.org/10.1109/WPMC.2017.8301792","url":null,"abstract":"Today's radios operate invariably in half duple) mode, i.e., they can either transmit or receive, but not both simultaneously in the same frequency band. The inability to simultaneously transmit and receive inherently reduces the spectral efficiency of a radio channel by 50%. Spectrum scarcity and souped-up demand for data from the smar devices, the wireless networks have been unable to cope with the growing needs of the user community. The realization of the full duplex mode operation in the prevailing circumstance has attracted a lot of attention from both industry and academia. The fundamental obstacle in achieving the ful duplex mode operation emanates from the self-induced interference from its own transmitted signal, which interfere with the received Signal of Interest (SoI). Majority of wireles communication systems operate in half duplex mode (inheren inefficiency) to avoid self-interference and to preven desensitizes of their receive chain. The key challenge in achieving the full-duplex radio operation in the same frequency band originates from the huge power differentia between transmitted power and the received signal of interest arriving from a faraway transmitter as well as the nonlinearity of the Radio Frequency Front End (RFFE) transmit/receive components. This large power differential saturates the Low Noise Amplifiers (LNA) and overwhelms the dynamic range o the Analog to Digital Converter (ADC) in the receive chain raising the Receive (Rx) noise floor to an undesirably high level. Many analog and digital cancellation techniques have been proposed and implemented with limited success in specific environments. A more generic technique, which allow for adaptive cancellation of interference from various source in dynamic environment, has been studied, implemented, and the result has been documented in this paper.","PeriodicalId":239243,"journal":{"name":"2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123348300","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
A weighted least-squares method using received signal strength measurements for WLAN indoor positioning system 采用加权最小二乘法测量无线局域网室内定位系统的接收信号强度
2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC) Pub Date : 2017-12-01 DOI: 10.1109/WPMC.2017.8301829
Ye Tian, Daito Shigaki, Wenjian Wang, C. Ahn
{"title":"A weighted least-squares method using received signal strength measurements for WLAN indoor positioning system","authors":"Ye Tian, Daito Shigaki, Wenjian Wang, C. Ahn","doi":"10.1109/WPMC.2017.8301829","DOIUrl":"https://doi.org/10.1109/WPMC.2017.8301829","url":null,"abstract":"GNSS (Global Navigation Satellite System), which is commonly used for positioning in outdoor environments, cannot be used in indoor environments because of unreachable radio waves. Therefore, the theory and algorithm for wireless indoor positioning systems has been extensively researched. Nevertheless, positioning using radio signals are influenced by multipath propagation and other cause. Therefore, how to approach the optimum location accuracy has been recognized as a difficult task. In this paper, we focus on the Received Signal Strength Indication (RSSI) positioning method of a Wireless Local Area Network (WLAN) system. To improve the positioning accuracy, we developed a simple and efficient positioning algorithm by using a novel weighted least-squares method. From the simulated and experimented results, the proposed method has a higher degree accuracy compared with the conventional methods.","PeriodicalId":239243,"journal":{"name":"2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126821911","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: 12
Centralized macrocell muting at subchannel level in LTE heterogeneous networks LTE异构网络子信道级集中式宏小区静音
2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC) Pub Date : 2017-12-01 DOI: 10.1109/WPMC.2017.8301887
Mengshi Hu, Yongyu Chang, Tianyi Zeng, W. Quan, Jian Zhang
{"title":"Centralized macrocell muting at subchannel level in LTE heterogeneous networks","authors":"Mengshi Hu, Yongyu Chang, Tianyi Zeng, W. Quan, Jian Zhang","doi":"10.1109/WPMC.2017.8301887","DOIUrl":"https://doi.org/10.1109/WPMC.2017.8301887","url":null,"abstract":"Enhanced inter-cell interference coordination (e-ICIC) is a technique for improving the performance of small cells in LTE heterogeneous networks. By using almost blank subframes (ABSs), the performance of range extension (RE) UEs in small cells can be improved. However, due to the different user numbers and needs in small cells, the configuration of ABSs in a macro cell may not be appropriate to each small cell deployed in it. This disadvantage can affect the improvement of system performance, especially when the number of small cells increases. To further improve the system performance, in this paper we propose a centralized macrocell muting scheme. In this scheme, macrocells will be muted at subchannel level instead of subframe level. Meanwhile, the fairness among different user types is taken into consideration. Simulation results show that our centralized muting scheme improves the throughput and fairness performance compared with non-ABS and ABS schemes.","PeriodicalId":239243,"journal":{"name":"2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129390763","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
Automotive pattern reconfigurable antennas concealed in a chassis cavity 隐藏在底盘腔内的汽车模式可重构天线
2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC) Pub Date : 2017-12-01 DOI: 10.1109/WPMC.2017.8301820
Gerald Artner, J. Kowalewski, C. Mecklenbräuker, T. Zwick
{"title":"Automotive pattern reconfigurable antennas concealed in a chassis cavity","authors":"Gerald Artner, J. Kowalewski, C. Mecklenbräuker, T. Zwick","doi":"10.1109/WPMC.2017.8301820","DOIUrl":"https://doi.org/10.1109/WPMC.2017.8301820","url":null,"abstract":"Pattern-reconfigurable antennas for the 2.45 GHz ISM band are concealed inside a chassis antenna cavity. Three antennas are designed to reconfigure between near-optimum radiation patterns for urban scenarios by toggling between front/back and left/right radiation. The three antennas follow distinct design principles and have different gain switching capabilities. Antenna performance is evaluated based on gain pattern measurements. It is shown, that the antennas retain their reconfiguration functionality when they are placed in the chassis cavity beneath the vehicle's roof.","PeriodicalId":239243,"journal":{"name":"2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"176 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127986577","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: 7
Improved common correlation matrix based SMI algorithm by channel estimation error minimization with LMS approach 基于LMS方法的信道估计误差最小化改进了基于公共相关矩阵的SMI算法
2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC) Pub Date : 2017-12-01 DOI: 10.1109/WPMC.2017.8301888
Takashi Akao, Satoshi Taroda, K. Maruta, C. Ahn
{"title":"Improved common correlation matrix based SMI algorithm by channel estimation error minimization with LMS approach","authors":"Takashi Akao, Satoshi Taroda, K. Maruta, C. Ahn","doi":"10.1109/WPMC.2017.8301888","DOIUrl":"https://doi.org/10.1109/WPMC.2017.8301888","url":null,"abstract":"This paper improves interference suppression performance of Common Correlation Matrix (CCM) based Sample Matrix Inversion (SMI) adaptive array antenna algorithm. Assuming multicarrier systems such as orthogonal frequency division multiplexing (OFDM), CCM is effective means to achieve good convergence of covariance matrix by utilizing time-domain signal samples before multicarrier conversion. However, the number of pilot symbols is still limited and receiver noise causes poor channel identification. Such inaccurate CSI estimation deteriorates the interference suppression performance of the CCM-SMI algorithm. The key proposal is introducing a minimization of channel estimation error using least mean square (LMS) approach. Computer simulation results verify the improved Bit Error Rate (BER) performance provided by a modified CCM-SMI algorithm.","PeriodicalId":239243,"journal":{"name":"2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132341304","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: 3
High-order circular QAM constellation with high LDPC coding rate for phase noise channels 相位噪声信道高LDPC编码率的高阶圆QAM星座
2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC) Pub Date : 2017-12-01 DOI: 10.1109/WPMC.2017.8301807
Bin Zheng, Lianjun Deng, M. Sawahashi, N. Kamiya
{"title":"High-order circular QAM constellation with high LDPC coding rate for phase noise channels","authors":"Bin Zheng, Lianjun Deng, M. Sawahashi, N. Kamiya","doi":"10.1109/WPMC.2017.8301807","DOIUrl":"https://doi.org/10.1109/WPMC.2017.8301807","url":null,"abstract":"This paper proposes a design for a high-order circular quadrature amplitude modulation (QAM) constellation using partial low-density parity-check (LDPC) coding associated with parallel double Gray mapping aiming at the application to a microwave radio backhaul to deal with time-varying phase noise channels. In the proposed circular QAM constellation design, we first design the best constellation in which the same number of signal points is mapped to all concentric rings. Then, we decrease the number of signal points in the inner rings and remap the signal points to the newly added rings outside the original rings while maintaining high affinity to the double Gray mapping feature. Computer simulation results show that partial LDPC coding with double Gray mapping decreases the required received signal-to-noise power ratio (SNR) at the bit error rate (BER) of 10−6 by approximately 0.2 dB compared to full LDPC coding for a high LDPC coding rate such as 0.9. We also show that the proposed circular 1024QAM decreases the required received SNR at the average BER of 10−6 by approximately 0.5 dB compared to that for rectangular 1024QAM.","PeriodicalId":239243,"journal":{"name":"2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"293 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132792075","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: 6
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