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2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications最新文献

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MIMO channel capacity measurement in the presence of spatial clusters using a fading emulator 使用衰落模拟器测量空间簇存在下的MIMO信道容量
2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-01 DOI: 10.1109/PIMRC.2009.5450333
T. Sakata, A. Yamamoto, K. Ogawa, J. Takada
{"title":"MIMO channel capacity measurement in the presence of spatial clusters using a fading emulator","authors":"T. Sakata, A. Yamamoto, K. Ogawa, J. Takada","doi":"10.1109/PIMRC.2009.5450333","DOIUrl":"https://doi.org/10.1109/PIMRC.2009.5450333","url":null,"abstract":"This paper presents a radio frequency (RF) controlled spatial fading emulator for the evaluation of a handset MIMO antenna. The RF-controlled fading emulator can control RF signals directly in the spatial domain to produce an accurate radio propagation channel model, which includes the uniform and non-uniform angular power spectra (APS) in the horizontal plane. Fading correlation and MIMO channel capacities of a quasi-dipole array, in the case of up to three spatial clusters, are measured by using the emulator. From agreement between the measured data and theoretical values, the effectiveness of the emulator was confirmed.","PeriodicalId":110448,"journal":{"name":"2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128066125","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: 19
Masked M-QAM OFDM: A simple approach for enhancing the security of OFDM systems 掩码M-QAM OFDM:一种提高OFDM系统安全性的简单方法
2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-01 DOI: 10.1109/PIMRC.2009.5450168
A. Chorti, Ioannis Kanaras
{"title":"Masked M-QAM OFDM: A simple approach for enhancing the security of OFDM systems","authors":"A. Chorti, Ioannis Kanaras","doi":"10.1109/PIMRC.2009.5450168","DOIUrl":"https://doi.org/10.1109/PIMRC.2009.5450168","url":null,"abstract":"This paper investigates the secure transmission of Orthogonal Frequency Division Multiplexing (OFDM) signals, masked under non-orthogonal FDM signals of approximately the same overall bandwidth. Carrier orthogonality of traditional OFDM is intentionally violated in order to generate an encrypted signal at the physical layer, without any loss in bandwidth efficiency or extra overhead. A symmetric secret key is used for the modulation of part of the FDM signal while the original information symbol modulates the remaining carriers. The encrypted FDM signal generation takes place in an IFFT stage by simple truncation of part of its output. At the receiver, a straightforward suppression of the induced Inter-Carrier Interference (ICI) is performed before the OFDM demodulator, based on knowledge of the secret key. The key holder subsequently uses the traditional OFDM FFT demodulator to extract the information symbol. We demonstrate that an eavesdropper cannot demodulate the transmitted FDM signal by reduced complexity detection methods due to its severe ill-conditioning. Conversely, they have to rely on vectorial Maximum Likelihood detection of exponential complexity. Furthermore, in real noisy environments the eavesdropper detection capability is further affected by the abrupt shrinking of the FDM demodulator detection regions.","PeriodicalId":110448,"journal":{"name":"2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128153435","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: 18
Multiband simultaneous reception front-end with adaptive mismatches correction algorithm 多波段同步接收前端采用自适应错配校正算法
2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-01 DOI: 10.1109/PIMRC.2009.5450258
Ioan Burciu, G. Villemaud, J. Verdier
{"title":"Multiband simultaneous reception front-end with adaptive mismatches correction algorithm","authors":"Ioan Burciu, G. Villemaud, J. Verdier","doi":"10.1109/PIMRC.2009.5450258","DOIUrl":"https://doi.org/10.1109/PIMRC.2009.5450258","url":null,"abstract":"This paper addresses the architecture of multistandard simultaneous reception receivers and aims at improving the performance-power-complexity trade-off of the front-end. To this end we propose a single front-end architecture offering lower complexity and therefore lower power consumption. In order to obtain the same performance as the state of the art receivers, a light weight adaptive method is designed and implemented. It uses a mix of two digital implemented algorithms dedicated to the correction of the front-end IQ mismatches. A study case concerning the simultaneous reception of 802.11g and UMTS signals is developed in this article.","PeriodicalId":110448,"journal":{"name":"2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121757376","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
Advanced location-tracking systems in home, automotive and public transportation environments 先进的位置跟踪系统在家庭，汽车和公共交通环境
2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-01 DOI: 10.1109/PIMRC.2009.5449863
G. Destino, G. Abreu
{"title":"Advanced location-tracking systems in home, automotive and public transportation environments","authors":"G. Destino, G. Abreu","doi":"10.1109/PIMRC.2009.5449863","DOIUrl":"https://doi.org/10.1109/PIMRC.2009.5449863","url":null,"abstract":"In this paper, a novel distance based source-localization algorithm is proposed for location-tracking applications in home, automotive and public transportation environments. Based on the least squares (LS) formulation of the source-localization problem, we develop an optimization algorithm that proves mostly unaffected by the number of local minima of the LS-objective function. The algorithm, referred to as range global distance continuation (R-GDC), consists of an iterative procedure in which, at each k-th iteration, the original objective is smoothed by a Gaussian kernel (smoothing function) and minimized by a steepest-descent (SD) method. The results reveal that the R-GDC algorithm, not only outperforms the alternative methods, but also achieves a localization error that is close to theoretical position error bound (PEB).","PeriodicalId":110448,"journal":{"name":"2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"2008 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131392795","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 analytical model for energy efficiency analysis of different wakeup radio schemes 不同唤醒无线电方案的能量效率分析模型
2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-01 DOI: 10.1109/PIMRC.2009.5450343
Yan Zhang, Li Huang, G. Dolmans, H. D. Groot
{"title":"An analytical model for energy efficiency analysis of different wakeup radio schemes","authors":"Yan Zhang, Li Huang, G. Dolmans, H. D. Groot","doi":"10.1109/PIMRC.2009.5450343","DOIUrl":"https://doi.org/10.1109/PIMRC.2009.5450343","url":null,"abstract":"Wakeup radio schemes are employed to improve the energy efficiency in wireless sensor networks. In this paper, an analytical model is formulated to make a justified comparison between two different wakeup schemes, one-channel wakeup radio and two-channel wakeup radio. As the key measurement, energy efficiency is studied by taking the latency requirement as the main constraint. Moreover, the probabilities of miss detection and false alarm as well as the parameters related to network settings are considered in our model. Based on the model, we draw quantitative conclusions on how to choose a more energy-efficient wakeup scheme according to the application scenario. The analytical results are further validated by simulation results.","PeriodicalId":110448,"journal":{"name":"2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131958811","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: 35
On the Nash equilibrium solutions of integer bit loading OFDMA resource allocation games 整数位负载OFDMA资源分配对策的纳什均衡解
2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-01 DOI: 10.1109/PIMRC.2009.5450219
Zhenyu Liang, Y. Chew, C. Ko
{"title":"On the Nash equilibrium solutions of integer bit loading OFDMA resource allocation games","authors":"Zhenyu Liang, Y. Chew, C. Ko","doi":"10.1109/PIMRC.2009.5450219","DOIUrl":"https://doi.org/10.1109/PIMRC.2009.5450219","url":null,"abstract":"We address the allocation of subcarriers, bits and power among the base stations (BSs) of downlink multi-cell OFDMA systems using the non-cooperative game theoretic approach. The utility function of a player is defined as the difference between the revenue generated from transmitting the bits and the cost of the power consumed. Unlike the commonly adopted water-filling approach where continuous bit loading is used, we consider assigning integer number of bits to subcarriers. We address the existence of pure Nash equilibrium (NE) of the static games for two-cell modulation adaptive and three-cell single modulation OFDMA systems. Theorems related to the existence of pure NE for the two games are developed. Using these results, we show that the existence of a stable solution for the OFDMA games cannot be guaranteed if minimum rate requirements must be satisfied.","PeriodicalId":110448,"journal":{"name":"2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131969658","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
A general framework for MIMO transceiver design with imperfect CSI and transmit correlation 一种具有不完全CSI和发射相关性的MIMO收发器设计的一般框架
2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-01 DOI: 10.1109/PIMRC.2009.5450374
M. Ding, S. Blostein, W. Mow, C. Siriteanu
{"title":"A general framework for MIMO transceiver design with imperfect CSI and transmit correlation","authors":"M. Ding, S. Blostein, W. Mow, C. Siriteanu","doi":"10.1109/PIMRC.2009.5450374","DOIUrl":"https://doi.org/10.1109/PIMRC.2009.5450374","url":null,"abstract":"Assuming perfect channel state information (CSI), linear precoding/decoding for multiple-input multiple-output (MIMO) systems has been considered in the literature under various performance criteria, such as minimum total mean-square error (MSE), maximum mutual information, and minimum average bit error rate (BER). It has been shown that these criteria belong to a set of reasonable Schur-concave or Schur-convex objective functions of the diagonal entries of the system mean-square error (MSE) matrix. In this paper, assuming only the knowledge of channel mean and transmit correlation at both ends, a general theoretical framework is presented to derive the optimum precoder and decoder for MIMO systems using these objective functions. It is shown that for all these objective functions the optimum transceivers share a similar structure. Compared to the case with perfect CSI, a linear filter is added to both ends to balance the suppression of channel noise and the additional noise induced from channel estimation error. Simulation results are provided.1","PeriodicalId":110448,"journal":{"name":"2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132026727","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
Dynamic symbol pairing PAPR reduction technique for OFDM systems OFDM系统的动态符号配对PAPR降低技术
2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-01 DOI: 10.1109/PIMRC.2009.5450281
L. Yang, M. You
{"title":"Dynamic symbol pairing PAPR reduction technique for OFDM systems","authors":"L. Yang, M. You","doi":"10.1109/PIMRC.2009.5450281","DOIUrl":"https://doi.org/10.1109/PIMRC.2009.5450281","url":null,"abstract":"Due to its high spectral efficiency and inherent robustness against multipath fading channels, OFDM has become a popular solution for various high-speed wireless data transmission systems. However, the OFDM signal has a large PAPR (peak to average power ratio), which results in the significant nonlinear distortion when it passes through a high power amplifier. A number of PAPR reduction techniques have been proposed in the literature, while most of the technique require high computational complexity which is undesirable. In this paper, we propose a unique PAPR reduction method based on intelligent time domain signal paring which can achieve significant PAPR reduction with low complexity.","PeriodicalId":110448,"journal":{"name":"2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132058486","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
Dynamic tunnel routing for reliable and resilient data forwarding in wireless sensor networks 无线传感器网络中可靠、弹性数据转发的动态隧道路由
2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-01 DOI: 10.1109/PIMRC.2009.5450314
A. Munari, W. Schott, Yee Wei Law
{"title":"Dynamic tunnel routing for reliable and resilient data forwarding in wireless sensor networks","authors":"A. Munari, W. Schott, Yee Wei Law","doi":"10.1109/PIMRC.2009.5450314","DOIUrl":"https://doi.org/10.1109/PIMRC.2009.5450314","url":null,"abstract":"In this paper, we propose a novel dynamic routing strategy called tunnel routing that enables efficient and resilient data forwarding from sensors to a destination in wireless sensor networks. Instead of establishing a single static path, tunnel routing identifies a set of trusted sensor nodes that form a tunnel between the source and the destination. Terminals in the tunnel cooperate with each other to reliably route data and to defend against compromised nodes that may maliciously drop or re-direct packets. To achieve this, not only do sensor terminals forward data, but also they act as support nodes, providing on-demand retransmissions in order to combat channel fading, and initializing multi-path data forwarding towards the destination in case they detect a misbehavior of a forwarding node. Simulation results demonstrate the advantages of the proposed scheme.","PeriodicalId":110448,"journal":{"name":"2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132332891","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
Using smart antennas for enhancing cognitive radio non-intrusiveness on a primary network 利用智能天线增强主网络的认知无线电非侵入性
2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2009-09-01 DOI: 10.1109/PIMRC.2009.5450091
M. Boutin, C. Despins, T. Denidni
{"title":"Using smart antennas for enhancing cognitive radio non-intrusiveness on a primary network","authors":"M. Boutin, C. Despins, T. Denidni","doi":"10.1109/PIMRC.2009.5450091","DOIUrl":"https://doi.org/10.1109/PIMRC.2009.5450091","url":null,"abstract":"A new interference estimation approach is presented for the underlay secondary spectrum sharing paradigm, which will increasingly become a necessity as a result of increasing wireless communication demands. Our scheme is especially designed to deal with very low communication between a smart antennas equipped secondary network and a primary (legacy) wireless network. Since only the primary antennas' coarse probabilistic locations are known by the secondary network, an uncertainty area is considered for each antenna in terms of its intersection with secondary network radio coverage areas. With only few offline communicated coexistence constraints to be respected by both networks, a Monte Carlo simulation is used to statistically establish the coexistence scheme. Although computationally expensive as compared to our previous technique, the one presented in this paper now approaches the theoretical accuracy upper bound for this coexistence context, hence increasing the wireless coexistence worthiness.","PeriodicalId":110448,"journal":{"name":"2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132499817","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
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