发布求助
文献互助 智能选刊 最新文献

2006 IEEE Radio and Wireless Symposium最新文献

筛选
英文 中文
Narrowband interference suppression of an MTR-UWB transceiver 中频-超宽带收发器窄带干扰抑制
2006 IEEE Radio and Wireless Symposium Pub Date : 2006-04-10 DOI: 10.1109/RWS.2006.1615213
Ping Liu, Zhengyuan Xu, B. Sadler
{"title":"Narrowband interference suppression of an MTR-UWB transceiver","authors":"Ping Liu, Zhengyuan Xu, B. Sadler","doi":"10.1109/RWS.2006.1615213","DOIUrl":"https://doi.org/10.1109/RWS.2006.1615213","url":null,"abstract":"A recently proposed multiuser transmitted reference ultra wideband (MTR-UWB) transceiver not only provides much higher data rates than a conventional TR-UWB system, but also enables multiuser communication effectively. This paper further investigates its narrowband interference suppression capability. Effects of different jamming parameters such as the number of jamming tones, jamming power, and data rate ratio of narrowband to UWB signals, are studied. Some insights into trade-offs between suppression of narrowband interfering signals and detection performance are illustrated.","PeriodicalId":244560,"journal":{"name":"2006 IEEE Radio and Wireless Symposium","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114698059","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
LH phase shifter using ferroelectric varactors 采用铁电变容的LH移相器
2006 IEEE Radio and Wireless Symposium Pub Date : 2006-04-10 DOI: 10.1109/RWS.2006.1615180
A. Giere, C. Damm, P. Scheele, R. Jakoby
{"title":"LH phase shifter using ferroelectric varactors","authors":"A. Giere, C. Damm, P. Scheele, R. Jakoby","doi":"10.1109/RWS.2006.1615180","DOIUrl":"https://doi.org/10.1109/RWS.2006.1615180","url":null,"abstract":"A tunable left handed (LH) transmission line used as continuously tunable phase shifter is presented. Using varactors based on barium-strontium-titanate (BST) thick films, a figure of merit FoM = 29deg /dB has been measured at 2.8 GHz. The bandwidth of the realized circuit using 3 unit cells reached 10%. The agreement of the presented result from simulation and measurement is good, the differences can be explained by tolerances of the used components. Additionally the simulations of a 180deg phase shifter based on the same components for the unit cell is presented. Simulated results of this phase shifter shows a bandwidth of 27% and a FoMmax = 31.5deg /dB","PeriodicalId":244560,"journal":{"name":"2006 IEEE Radio and Wireless Symposium","volume":"94 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126143141","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: 22
A K-band LTCC SMD type balun using a multi-layer coupler insensitive to misalignment 使用多层耦合器的k波段LTCC SMD型平衡器，对失调不敏感
2006 IEEE Radio and Wireless Symposium Pub Date : 2006-04-10 DOI: 10.1109/RWS.2006.1615227
W. Chang, D. Jung, C. Park
{"title":"A K-band LTCC SMD type balun using a multi-layer coupler insensitive to misalignment","authors":"W. Chang, D. Jung, C. Park","doi":"10.1109/RWS.2006.1615227","DOIUrl":"https://doi.org/10.1109/RWS.2006.1615227","url":null,"abstract":"An SMD type balun with a frequency range from 10 GHz to 25 GHz in a low temperature co-fired ceramic (LTCC) substrate is designed and measured. To reduce the effect of misalignment in the multilayer coupler, we propose a novel multilayer coupler structure which is insensitive to misalignment. The package has ports on the ground plane for the SMT, and a cover on top of the circuit to protect the circuit. Every transmission line is simulated as an embedded micro-strip line to account for the cover effect. All the internal ports are connected to the output ports at ground plane through via transition. The total number of LTCC layers is 5 including the cover layer. The overall dimension is as small as 5.5 mm /spl times/ 5.5 mm /spl times/ 0.5 mm.","PeriodicalId":244560,"journal":{"name":"2006 IEEE Radio and Wireless Symposium","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123709353","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
A novel and low-cost analog front-end mismatch calibration scheme for MIMO-OFDM WLANs 一种新的低成本MIMO-OFDM无线局域网模拟前端失配校正方案
2006 IEEE Radio and Wireless Symposium Pub Date : 2006-04-10 DOI: 10.1109/RWS.2006.1615134
Jian Liu, G. Vandersteen, J. Craninckx, M. Libois, M. Wouters, F. Petré, A. Barel
{"title":"A novel and low-cost analog front-end mismatch calibration scheme for MIMO-OFDM WLANs","authors":"Jian Liu, G. Vandersteen, J. Craninckx, M. Libois, M. Wouters, F. Petré, A. Barel","doi":"10.1109/RWS.2006.1615134","DOIUrl":"https://doi.org/10.1109/RWS.2006.1615134","url":null,"abstract":"This paper presents a novel and low-cost analog front-end gain and phase mismatch calibration scheme for MIMO-OFDM TDD WLAN systems with transmit-processing, where the complete channel reciprocity and calibration of the access point hardware is needed. It is shown by analytical derivations that the novel scheme has similar performance to that of the older scheme. The new scheme also has the advantage of lower implementation cost by removing the necessity of having a calibration transceiver. In addition, it is demonstrated that the new scheme can easily be extended towards an arbitrary number of multi-antenna transceivers.","PeriodicalId":244560,"journal":{"name":"2006 IEEE Radio and Wireless Symposium","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121621863","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
Tunable monocycle doublet generator 可调谐单环双线发生器
2006 IEEE Radio and Wireless Symposium Pub Date : 2006-04-10 DOI: 10.1109/RWS.2006.1615176
S. Krishnan, O. Kyaw, Low Zhen Ning, V.P. Kumar, N.L. Leng
{"title":"Tunable monocycle doublet generator","authors":"S. Krishnan, O. Kyaw, Low Zhen Ning, V.P. Kumar, N.L. Leng","doi":"10.1109/RWS.2006.1615176","DOIUrl":"https://doi.org/10.1109/RWS.2006.1615176","url":null,"abstract":"This paper introduces a technique for generating tunable UWB monocycle doublets. The time separation of the monocycles can be easily tuned, independent of the pulse repetition rate. It does not require the use of wideband or high frequency delay lines to generate the doublets. Several prototypes were fabricated and measured. The results verify that the proposed technique is suitable for generating monocycle doublets with tunable characteristics.","PeriodicalId":244560,"journal":{"name":"2006 IEEE Radio and Wireless Symposium","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121695769","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
Distributed MAC protocols for UWB ad hoc and sensor networks 用于超宽带自组网和传感器网络的分布式MAC协议
2006 IEEE Radio and Wireless Symposium Pub Date : 2006-04-10 DOI: 10.1109/RWS.2006.1615206
N. August, W. Chung, D. Ha
{"title":"Distributed MAC protocols for UWB ad hoc and sensor networks","authors":"N. August, W. Chung, D. Ha","doi":"10.1109/RWS.2006.1615206","DOIUrl":"https://doi.org/10.1109/RWS.2006.1615206","url":null,"abstract":"Large ad hoc and sensor networks impose stringent constraints on cost and energy efficiency. Impulse-based ultra wideband (I-UWB) is an attractive radio technology, and we have developed four medium access control (MAC) protocols to support I-UWB radios in such networks. The four MAC protocols are multichannel ALOHA (M-ALOHA), multichannel pulse sense multiple access (M-PSMA), PSMA with collision avoidance (PSMA/CA), and busy signal multiple access (BSMA). These MAC protocols permit random, distributed medium access with no central point of failure. This paper characterizes the energy efficiency, throughput, and delay of the four protocols. The results suggest appropriate application scenarios for each of the protocols.","PeriodicalId":244560,"journal":{"name":"2006 IEEE Radio and Wireless Symposium","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122787201","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: 15
Performance analysis of the detector for structured irregular LDPC coded MIMO-OFDM system 结构化不规则LDPC编码MIMO-OFDM系统检测器性能分析
2006 IEEE Radio and Wireless Symposium Pub Date : 2006-04-10 DOI: 10.1109/RWS.2006.1615136
Kyeong Jin Kim, T. Bhatt, V. Stolpman, R. Iltis
{"title":"Performance analysis of the detector for structured irregular LDPC coded MIMO-OFDM system","authors":"Kyeong Jin Kim, T. Bhatt, V. Stolpman, R. Iltis","doi":"10.1109/RWS.2006.1615136","DOIUrl":"https://doi.org/10.1109/RWS.2006.1615136","url":null,"abstract":"In this paper, we evaluate the performance of the MIMO data detector with various decoding architectures in the structured irregular LDPC coded MIMO-OFDM system. Using the EXIT chart analysis, the performance of the data detector in the iterative MIMO-OFDM system with various approximate decoding algorithms is analyzed.","PeriodicalId":244560,"journal":{"name":"2006 IEEE Radio and Wireless Symposium","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130543453","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 CMOS 5 GHz phase-compensated quadrature coupler CMOS 5 GHz相位补偿正交耦合器
2006 IEEE Radio and Wireless Symposium Pub Date : 2006-04-10 DOI: 10.1109/RWS.2006.1615092
D. Ozis, D. Allstot
{"title":"A CMOS 5 GHz phase-compensated quadrature coupler","authors":"D. Ozis, D. Allstot","doi":"10.1109/RWS.2006.1615092","DOIUrl":"https://doi.org/10.1109/RWS.2006.1615092","url":null,"abstract":"A quadrature hybrid coupler implemented in a 0.18 /spl mu/m 6-metal RF CMOS process is presented. The 3 dB coupler uses on-chip lumped passive elements and provides a 90/spl deg/ phase shift at 5.4 GHz. It exhibits less than 0.7/spl deg/ phase and 0.3 dB amplitude I/Q mismatches over a bandwidth of 220 MHz. The measured figure-of-merit is 45 dB at 5.4 GHz.","PeriodicalId":244560,"journal":{"name":"2006 IEEE Radio and Wireless Symposium","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122247359","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
A novel NBI suppression scheme for UWB communications using multiple receive antennas 一种新型的多接收天线超宽带通信NBI抑制方案
2006 IEEE Radio and Wireless Symposium Pub Date : 2006-04-10 DOI: 10.1109/RWS.2006.1615205
J. Ibrahim, R. Buehrer
{"title":"A novel NBI suppression scheme for UWB communications using multiple receive antennas","authors":"J. Ibrahim, R. Buehrer","doi":"10.1109/RWS.2006.1615205","DOIUrl":"https://doi.org/10.1109/RWS.2006.1615205","url":null,"abstract":"In this paper, a narrowband interference (NBI) mitigation scheme for ultra-wide bandwidth (UWB) signals using multiple receive antennas is examined. The low spatial fading of UWB signals compared to NBI signals is exploited to provide \"interference diversity\". Whereas classical diversity techniques are designed to increase the desired received signal power, the aim of interference diversity is to minimize the effective NBI power. Selection diversity (SD), equal gain combining (EGC) and maximal ratio combining (MRC) methods are investigated. It is shown that SD and ECG result in a 3-dB performance improvement when the number of receive antennas is doubled. Also, MRC yields additional gains over SD and ECG. The proposed methods are mathematically analyzed, then verified by simulation.","PeriodicalId":244560,"journal":{"name":"2006 IEEE Radio and Wireless Symposium","volume":"1573 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116503802","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
A broadband high data rate constant envelope phase shift modulator in a 0.13 /spl mu/m logic CMOS process 一种0.13 /spl mu/m逻辑CMOS工艺的宽带高数据速率恒定包络相移调制器
2006 IEEE Radio and Wireless Symposium Pub Date : 2006-04-10 DOI: 10.1109/RWS.2006.1615221
Xiuge Yang, Jenshan Lin
{"title":"A broadband high data rate constant envelope phase shift modulator in a 0.13 /spl mu/m logic CMOS process","authors":"Xiuge Yang, Jenshan Lin","doi":"10.1109/RWS.2006.1615221","DOIUrl":"https://doi.org/10.1109/RWS.2006.1615221","url":null,"abstract":"This paper presents a low-power constant envelope phase shift modulator. The modulator discretely changes the phase of a constant envelope carrier according to the input digital data bits. A test chip was fabricated in a 0.13/spl mu/m logic CMOS process. Experiment results show that the modulator consumes 2 mA, has an operating frequency range between 1.5 GHz and 3.3 GHz with EVMs below 4%, and can support a data rate up to 225 Mbps with EVMs lower than 5.5%. The modulator can be designed to generate different modulation schemes by digitally controlling the phase and/or amplitude of the carrier, and therefore potentially can be used in software defined radios.","PeriodicalId":244560,"journal":{"name":"2006 IEEE Radio and Wireless Symposium","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133981880","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信