2013 International Conference on Wireless Communications and Signal Processing最新文献_第8页

Genetic Algorithm Optimized Memory Polynomial digital pre-distorter for RF power amplifiers 基于遗传算法优化的射频功率放大器记忆多项式数字预失真器

2013 International Conference on Wireless Communications and Signal Processing Pub Date : 2013-12-02 DOI: 10.1109/WCSP.2013.6677117

Riaz Mondal, T. Ristaniemi, Munzura Doula

{"title":"Genetic Algorithm Optimized Memory Polynomial digital pre-distorter for RF power amplifiers","authors":"Riaz Mondal, T. Ristaniemi, Munzura Doula","doi":"10.1109/WCSP.2013.6677117","DOIUrl":"https://doi.org/10.1109/WCSP.2013.6677117","url":null,"abstract":"Digital pre-distortion (DPD) is an efficient way of linearizing RF power amplifiers in wireless communications transmitters. Memory Polynomial and Generalized Memory Polynomial methods are two such successful methods capable of reducing spectral regrowth of high power amplifiers with memory effect. However, these methods often need a large number of coefficients, which makes these methods less cost efficient. In this paper we present an effective method based on Genetic Algorithm to simultaneously reduce the number of coefficient and optimize the performance of Memory Polynomial (MP) and Generalized Memory Polynomial (GMP) Radio Frequency (RF) power amplifier pre-distorters. The proposed method is validated using a single carrier WCDMA signal using an indirect learning architecture. In comparison with the MP model, the proposed model shows improved adjacent channel power ratio performance in the DPD application with 42% reduction in the number of coefficients. In comparison with the GMP model, the proposed model achieves higher model accuracy and better DPD performance, but reduces 25% of coefficients.","PeriodicalId":342639,"journal":{"name":"2013 International Conference on Wireless Communications and Signal Processing","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125297810","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: 10

Performance analysis of eigenvalue-based sensing algorithm with Monte-Carlo threshold 基于蒙特卡罗阈值的特征值感知算法性能分析

2013 International Conference on Wireless Communications and Signal Processing Pub Date : 2013-12-02 DOI: 10.1109/WCSP.2013.6677195

Lei Wang, B. Zheng, Jingwu Cui, Haifeng Hu

{"title":"Performance analysis of eigenvalue-based sensing algorithm with Monte-Carlo threshold","authors":"Lei Wang, B. Zheng, Jingwu Cui, Haifeng Hu","doi":"10.1109/WCSP.2013.6677195","DOIUrl":"https://doi.org/10.1109/WCSP.2013.6677195","url":null,"abstract":"Eigenvalue-based spectrum sensing algorithms, such as the maximum-minimum eigenvalue (MME) algorithm and the Marčhenko-Pastur (MP) law based algorithm, are based on the asymptotic behavior of large random matrices and have very high sensing performance with an appropriate threshold. The advantage of such algorithms is that they can work very well without the estimation of noise variance, and this feature is very attractive for practical applications because of the hardness of obtaining an exact noise variance. In practical applications, threshold-setting is the key problem of such algorithms and it is important to find a simple and efficient way to make it work well with any specific dimensions (i.e. the sizes of samples and transceivers). In this paper, a Monte-Carlo threshold is provided, which shows how eigenvalue-based spectrum sensing algorithm can work well with the new threshold for any specific dimensions. Performance analysis over the E-UTRA channel model in 3GPP LTE demonstrate that, compared with the original MME detection and the MP-law-based detection, as well as the classical energy detection, the improved scheme with Monte-Carlo threshold offers superior detection performance.","PeriodicalId":342639,"journal":{"name":"2013 International Conference on Wireless Communications and Signal Processing","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128186581","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

Research on the cooperative BSs' number of coordinated Multi-Point Transmission with perfect feedback 具有完美反馈的协同多点传输合作基站数量研究

2013 International Conference on Wireless Communications and Signal Processing Pub Date : 2013-12-02 DOI: 10.1109/WCSP.2013.6677156

J. Dai, Jingwei Liang, Ming Chen, Yang Li, Jun Zhou, Yang Zhou

引用次数: 0

Cost effective hardware based demosaicking algorithm for embedded system 基于硬件的高效嵌入式系统去马赛克算法

2013 International Conference on Wireless Communications and Signal Processing Pub Date : 2013-12-02 DOI: 10.1109/WCSP.2013.6677199

Junshi Liu, Yun Pan, Wenkai Ding, R. Huan

引用次数: 1

Variable is good: Adaptive sparse channel estimation using VSS-ZA-NLMS algorithm 变量好:使用VSS-ZA-NLMS算法进行自适应稀疏信道估计

2013 International Conference on Wireless Communications and Signal Processing Pub Date : 2013-12-02 DOI: 10.1109/WCSP.2013.6677215

Guan Gui, Shinya Kumagai, A. Mehbodniya, F. Adachi

引用次数: 15

Outage analysis for device-to-device communication assisted by two-way decode-and-forward relaying 由双向解码转发中继辅助的设备对设备通信的中断分析

2013 International Conference on Wireless Communications and Signal Processing Pub Date : 2013-12-02 DOI: 10.1109/WCSP.2013.6677242

Yiyang Ni, Shi Jin, Ran Tian, Kai‐Kit Wong, Hongbo Zhu, S. Shao

引用次数: 17

Generation of 3-D physical fading channel with non-isotropic scattering 非各向同性散射的三维物理衰落信道的生成

2013 International Conference on Wireless Communications and Signal Processing Pub Date : 2013-12-02 DOI: 10.1109/WCSP.2013.6677106

Junfei Yang, Jingyu Hua, Weidang Lu, L. Meng, Bin Jiang

引用次数: 2

Design of wireless optical access system using LED based android mobile 基于LED的android手机无线光接入系统的设计

2013 International Conference on Wireless Communications and Signal Processing Pub Date : 2013-12-02 DOI: 10.1109/WCSP.2013.6677087

Lipeng Fan, L. Ding, Fang Liu, Yongjin Wang

{"title":"Design of wireless optical access system using LED based android mobile","authors":"Lipeng Fan, L. Ding, Fang Liu, Yongjin Wang","doi":"10.1109/WCSP.2013.6677087","DOIUrl":"https://doi.org/10.1109/WCSP.2013.6677087","url":null,"abstract":"This report develops a prototype to demonstrate a directional wireless visible light communication (VLC) system based on Android Mobile. In this system, Two android mobiles can transmit local data to each other simultaneously. The system consists of two parts, the hardware and the software. The design of hardware is based on the USB port integrated in the Android Mobile. The development of software utilizes the protocol of AOA (Android Open Accessory) which is a new feature in Android 3.1 or more advanced version whereby a USB host device can connect to the Android device, allowing data transmission between Android devices over USB interfaces. Thus, the driver of the hardware needn't be added into the kernel of android. Combing with a USB port on one board, it can achieve up to 2Mbps bit rates error free, which is mainly limited to the USB bridge circuit between two mobiles for data transmission such as text, audio and video. The software is used to set the transmission data rate, control bits, check bits so as to achieve real-time and directional transmission between two mobile devices with a USB port. This paper also shows the experimental results of the Q-factor of the eye diagram and bit rate during system transmission. The range and the angle of communication are also discussed in the paper.","PeriodicalId":342639,"journal":{"name":"2013 International Conference on Wireless Communications and Signal Processing","volume":"43 15","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131722608","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

Performance of multiple relay selection with QoS requirement for cooperative relay networks 协同中继网络中具有QoS要求的多中继选择性能

2013 International Conference on Wireless Communications and Signal Processing Pub Date : 2013-12-02 DOI: 10.1109/WCSP.2013.6677239

Kang Song, Baofeng Ji, Yongming Huang, Luxi Yang

引用次数: 3

Switched model sets-based estimators for mobile localization in rough NLOS conditions 粗糙NLOS条件下基于交换模型集的移动定位估计

2013 International Conference on Wireless Communications and Signal Processing Pub Date : 2013-12-02 DOI: 10.1109/WCSP.2013.6677189

Tan-Jan Ho

引用次数: 1