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2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications最新文献

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A Low Power Transmitter for Phase-Shift Keying Modulation Schemes 一种用于相移键控调制方案的低功率发射机
2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2006-12-11 DOI: 10.1109/PIMRC.2006.254480
Jaewon Lee, Seonghwan Cho
{"title":"A Low Power Transmitter for Phase-Shift Keying Modulation Schemes","authors":"Jaewon Lee, Seonghwan Cho","doi":"10.1109/PIMRC.2006.254480","DOIUrl":"https://doi.org/10.1109/PIMRC.2006.254480","url":null,"abstract":"This paper presents a novel continuous-phase phase-shift-keying (CP-PSK) modulation scheme and a low-power quadrature modulation architecture. In the proposed modulation scheme, phase-shift occurs in a smooth, continuous manner so that it can be implemented using an indirectly modulated frequency synthesizer. In the proposed transmitter architecture, low-power and low-complexity are achieved by employing two indirectly modulated synthesizers for the I and Q paths, thereby eliminating the need for mixers and digital-to-analog converters (DACs). Simulation results show that the bit error rate (BER) and the spectral efficiency of the proposed methods are close to those of ideal PSK modulation schemes","PeriodicalId":325797,"journal":{"name":"2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130661179","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
Analysis of Hybrid Acquisition Schemes for Ultra Wide Band Impulse Radio 超宽带脉冲无线电混合采集方案分析
2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2006-12-11 DOI: 10.1109/PIMRC.2006.254455
L. Reggiani, J. Fiorina
{"title":"Analysis of Hybrid Acquisition Schemes for Ultra Wide Band Impulse Radio","authors":"L. Reggiani, J. Fiorina","doi":"10.1109/PIMRC.2006.254455","DOIUrl":"https://doi.org/10.1109/PIMRC.2006.254455","url":null,"abstract":"UWB (ultra wide band) is an emerging technology for short-range wireless communications, such as WPAN (wireless personal area networks). In the context of UWB impulse radio, one of the crucial challenges remains the acquisition of synchronization in terms of time, precision and number of operations. In this paper, we present a study on the acquisition time for hybrid strategies; the analysis relies on common assumptions on the fading statistics and the multipath intensity profile, while the simulations consider the complete channel models adopted by IEEE 802.15.4a. The analysis and simulations highlight the advantages and drawbacks of this type of search strategies","PeriodicalId":325797,"journal":{"name":"2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123922638","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
Capacity Evaluation of UWB Systems in Indoor Environment 室内环境下超宽带系统容量评估
2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2006-12-11 DOI: 10.1109/PIMRC.2006.254390
A. Durantini, R. Giuliano, F. Mazzenga
{"title":"Capacity Evaluation of UWB Systems in Indoor Environment","authors":"A. Durantini, R. Giuliano, F. Mazzenga","doi":"10.1109/PIMRC.2006.254390","DOIUrl":"https://doi.org/10.1109/PIMRC.2006.254390","url":null,"abstract":"The capacity of UWB enabled wireless personal area networks is analyzed in a dense multipath environment. The performances of UWB systems employing a direct-sequence multiple access scheme are evaluated in terms of link outage probability and average aggregate network throughput, considering a network topology based on a clustered structure, formed by a multitude of uncoordinated coexisting piconets. We study the dependence of the system performances on some critical design choices, such as the Rake receiver scheme, the mono-pulse characteristics of the transmitted UWB signals, the structure of the piconet frame, the traffic characteristics. Results are obtained by applying a semi-analytical estimate procedure, which accounts of the large and small scale fading phenomena for the UWB indoor propagation channel","PeriodicalId":325797,"journal":{"name":"2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"288 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114083603","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
Spatial Correlation and Eigenvalue Statistics Investigation of Wideband MIMO Channel Measurements 宽带MIMO信道测量的空间相关性和特征值统计研究
2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2006-12-11 DOI: 10.1109/PIMRC.2006.254317
A. Taparugssanagorn, T. Jämsä, J. Ylitalo
{"title":"Spatial Correlation and Eigenvalue Statistics Investigation of Wideband MIMO Channel Measurements","authors":"A. Taparugssanagorn, T. Jämsä, J. Ylitalo","doi":"10.1109/PIMRC.2006.254317","DOIUrl":"https://doi.org/10.1109/PIMRC.2006.254317","url":null,"abstract":"Spatial correlation is one of substantial factors for multiple-input multiple-output (MIMO) wireless communication systems. The spatial correlation must be therefore taken into account in system simulations. This paper results from outdoor wideband MIMO channel measurements performed at 2.53 GHz with a bandwidth of 100 MHz in urban microcell scenario. The measurements were conducted for vehicular speed of 20 km/h. A 16 elements dual polarized patch receive antenna array and a L-shaped transmit antenna array with 11 vertical polarized monopole elements at the mobile station are adopted for investigating 11times32 MIMO channels. As results, spatial correlation and eigenvalue statistics in frequency selective channels for single and dual polarized antennas are studied","PeriodicalId":325797,"journal":{"name":"2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114529875","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
Wireless Channel Access Through Jointly Formed Signal Constellations 通过联合形成的信号星座无线信道接入
2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2006-12-11 DOI: 10.1109/PIMRC.2006.254451
G. Tsouri, D. Wulich
{"title":"Wireless Channel Access Through Jointly Formed Signal Constellations","authors":"G. Tsouri, D. Wulich","doi":"10.1109/PIMRC.2006.254451","DOIUrl":"https://doi.org/10.1109/PIMRC.2006.254451","url":null,"abstract":"A novel multiple access method for wireless communication is proposed. The method is based on the channel superposition of multiple coherently transmitted signals. The obtained signal constellation at the receiver represents information bits of all transmitters at once. In contrary to other multiple access methods the quality of reception can increase with the number of transmitters. The method may be used on top of other multiple access methods to achieve higher spectral efficiency","PeriodicalId":325797,"journal":{"name":"2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116272492","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
Iterative Channel Estimation for Orthogonal STBC MC-CDMA Systems over Realistic High-Mobility MIMO Channels 现实高移动性MIMO信道上正交STBC MC-CDMA系统的迭代信道估计
2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2006-12-11 DOI: 10.1109/PIMRC.2006.253963
Fabrice Portier, S. Sand, J. Hélard
{"title":"Iterative Channel Estimation for Orthogonal STBC MC-CDMA Systems over Realistic High-Mobility MIMO Channels","authors":"Fabrice Portier, S. Sand, J. Hélard","doi":"10.1109/PIMRC.2006.253963","DOIUrl":"https://doi.org/10.1109/PIMRC.2006.253963","url":null,"abstract":"This paper considers a downlink multiple-input multiple-output (MIMO) multi-carrier code division multiple access (MC-CDMA) system with pilot aided channel estimation (PACE) and iterative channel estimation (ICE) in the receiver. Exploiting orthogonal space-time block coding (STBC), we investigate ICE schemes as a simple extension of PACE using estimated data chips as additional pilots. Due to the superposition of different users' spread data signals, zero-valued chips can occur after spreading, which can cause noise enhancement when using data estimates as reference signals in ICE. Hence, we propose MIMO channel estimation methods to overcome the above problem. Simulations with a realistic outdoor MIMO channel model, over a wide range of data rates and speeds, show that ICE can outperform PACE at the cost of increased complexity","PeriodicalId":325797,"journal":{"name":"2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121465575","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
HSDPA Performance Enhancement Using Repeaters and Remote RF Heads 使用中继器和远程射频头增强HSDPA性能
2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2006-12-11 DOI: 10.1109/PIMRC.2006.254110
Pathma Rathinavelu, G. Schapeler, A. Weber
{"title":"HSDPA Performance Enhancement Using Repeaters and Remote RF Heads","authors":"Pathma Rathinavelu, G. Schapeler, A. Weber","doi":"10.1109/PIMRC.2006.254110","DOIUrl":"https://doi.org/10.1109/PIMRC.2006.254110","url":null,"abstract":"Applicability of coexistence of repeaters and remote radio frequency (RF) heads as a scheme to enhance high speed downlink packet access (HSDPA) network performance has not been studied so far. In this paper, a step-by-step approach is proposed to analyze the usage of repeaters and remote RF heads to enhance over the air (OTA) throughput and HSDPA performance in general. Network constellations with and without repeaters and remote RF heads are developed for a realistic dense urban city centre scenario. Dynamic system level simulations have been conducted for different network configurations and for varying loads of FTP traffic. From the simulation results, it is seen that, scenarios enhanced with repeaters showed significantly better performance than the pure macro cell scenario or the pure RF Head scenario. Networks enhanced with a mixture of repeaters and remote RF heads mounted below rooftop with reduced power levels showed significantly better channel qualities than the macro cell network enhanced with repeaters mounted above rooftop. Approximately 50% increase in OTA throughput accompanied by 50% reduction in downlink power consumption and mean session duration was observed for the RF head scenario enhanced with repeaters, in comparison with macro cell scenario enhanced with repeaters; these are highly beneficial for the HSDPA system as a whole","PeriodicalId":325797,"journal":{"name":"2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126345258","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
Frequency and Bandwidth Dependency of UWB Propagation Channels 超宽带传播信道的频率和带宽依赖性
2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2006-12-11 DOI: 10.1109/PIMRC.2006.254447
S. Geng, P. Vainikainen
{"title":"Frequency and Bandwidth Dependency of UWB Propagation Channels","authors":"S. Geng, P. Vainikainen","doi":"10.1109/PIMRC.2006.254447","DOIUrl":"https://doi.org/10.1109/PIMRC.2006.254447","url":null,"abstract":"In this paper, based on indoor ultra-wide band (UWB) propagation channel measurements for both LOS and NLOS scenarios, the frequency dependency of propagation in the 3-10 GHz UWB range is investigated by examining the power delay profile, rms delay spread, path loss and shadowing as functions of frequency. Moreover, the bandwidth dependency of channel parameters is also investigated for gaining more understanding of the general channel properties","PeriodicalId":325797,"journal":{"name":"2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128112091","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
Synthesis of Multisequences Having Unknown Elements in the Middle with Decoding Applications 中间未知元素多序列的合成及其译码应用
2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2006-12-11 DOI: 10.1109/PIMRC.2006.254468
Jianwen Zhang, M. A. Armand
{"title":"Synthesis of Multisequences Having Unknown Elements in the Middle with Decoding Applications","authors":"Jianwen Zhang, M. A. Armand","doi":"10.1109/PIMRC.2006.254468","DOIUrl":"https://doi.org/10.1109/PIMRC.2006.254468","url":null,"abstract":"We propose an algorithm which incorporates Feng-Tzeng's fundamental iterative algorithm (FIA) for synthesizing multi-sequences containing unknown elements in the middle. This algorithm can be applied to decode the generalized Reed Solomon (GRS) codes whose associated syndrome sequences have unknown elements in the middle. We also show that the proposed algorithm can be used to decode folded Reed Solomon (FRS) codes constructed from any GRS code","PeriodicalId":325797,"journal":{"name":"2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125457713","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
HSDPA Performance in Mixed Outdoor-Indoor Micro Cell Scenarios HSDPA在室外室内混合微蜂窝场景下的性能研究
2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2006-12-11 DOI: 10.1109/PIMRC.2006.254123
I. Kovács, K. Pedersen, J. Wigard, F. Frederiksen, T. Kolding
{"title":"HSDPA Performance in Mixed Outdoor-Indoor Micro Cell Scenarios","authors":"I. Kovács, K. Pedersen, J. Wigard, F. Frederiksen, T. Kolding","doi":"10.1109/PIMRC.2006.254123","DOIUrl":"https://doi.org/10.1109/PIMRC.2006.254123","url":null,"abstract":"This paper presents HSDPA performance evaluation in an urban micro cell environment with outdoor base station antenna heights below roof-top level (10 m) and both outdoor and indoor pedestrian mobiles (3 km/h). A path loss model which accounts for the 3D geometry of the radio environment is used, thus allowing the simulation of indoor user locations at different building floor levels. The single user throughput evaluation is carried out using realistic HSDPA link-level simulations combined with the newly obtained statistics of the geometry factor in the considered micro cell environment. The results with 80% HSDPA power and 15 HS-PDSCH multi-codes showed median single-user throughput in the range of 4.8 Mbps/cell. It was also found that ground floor areas can be served with up to 5% better median throughputs compared to the outdoor and high (top) floor areas","PeriodicalId":325797,"journal":{"name":"2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125777841","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: 21
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