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Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194)最新文献

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Design considerations for extremely high-Q integrated inductors and their application in CMOS RF power amplifier 超高q集成电感器的设计考虑及其在CMOS射频功率放大器中的应用
Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194) Pub Date : 1998-08-09 DOI: 10.1109/RAWCON.1998.709187
T. Yeung, J. Lau, H. Ho, M. Poon
{"title":"Design considerations for extremely high-Q integrated inductors and their application in CMOS RF power amplifier","authors":"T. Yeung, J. Lau, H. Ho, M. Poon","doi":"10.1109/RAWCON.1998.709187","DOIUrl":"https://doi.org/10.1109/RAWCON.1998.709187","url":null,"abstract":"An extremely high-Q monolithic inductor (Q>2000) on silicon substrate was reported by Pehlke, Burstein and Chang (see Proceedings of the IEEE International Electron Device Meeting, pp. 63-6, 1997). The reported Q is 3 order of magnitude higher than a previously reported monolithic inductor. Such high quality factor may greatly improve the performance of monolithic RF circuits. Both 1-port (one terminal at ground) and 2-port (no terminal at ground) scattering parameters of the high-Q inductor were compared to examine any possible differences in device characteristics. A broadband physical model of the active inductor on silicon are presented to illustrate the improvement of quality factor. A design space with a range of gain and phase difference of current in the coils of the active inductor is reported. A typical application of the active inductor in CMOS RF power amplifier design is shown to illustrate the feasibility of applying the active inductor in RF circuits design.","PeriodicalId":226788,"journal":{"name":"Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132429089","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
Cellular system performance prediction 蜂窝系统性能预测
Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194) Pub Date : 1998-08-09 DOI: 10.1109/RAWCON.1998.709159
R. Rudokas
{"title":"Cellular system performance prediction","authors":"R. Rudokas","doi":"10.1109/RAWCON.1998.709159","DOIUrl":"https://doi.org/10.1109/RAWCON.1998.709159","url":null,"abstract":"Shannon's theorem combined with cellular system relationships between deployment, operational parameters and S/I form a relationship between system capacity and system re-use. Several enhancements are derived that more faithfully represent typical operational behavior of cellular systems. Results indicate that there is an optimum re-use factor (k=4) that maximizes system voice capacity.","PeriodicalId":226788,"journal":{"name":"Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133480645","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
Bit error rate analysis in wireless systems modeling 无线系统建模中的误码率分析
Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194) Pub Date : 1998-08-09 DOI: 10.1109/RAWCON.1998.709156
G. Chrisikos, C. J. Clark
{"title":"Bit error rate analysis in wireless systems modeling","authors":"G. Chrisikos, C. J. Clark","doi":"10.1109/RAWCON.1998.709156","DOIUrl":"https://doi.org/10.1109/RAWCON.1998.709156","url":null,"abstract":"This paper derives the bit error probability, or BER, of some binary modulation schemes as a function of the mean squared error between a degraded transmitted signal and the mismatched replica used at the receiver for correlation detection. This scenario is typically encountered in situations where nonlinear distortion from power amplification prevents the a priori knowledge of the signal waveform at the receiver, and a modeled waveform derived from time domain measurements is used.","PeriodicalId":226788,"journal":{"name":"Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194)","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114840075","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
Toward the 60 gm wireless phone 走向60克无线电话
Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194) Pub Date : 1998-08-09 DOI: 10.1109/RAWCON.1998.709160
D.H. Smithgall
{"title":"Toward the 60 gm wireless phone","authors":"D.H. Smithgall","doi":"10.1109/RAWCON.1998.709160","DOIUrl":"https://doi.org/10.1109/RAWCON.1998.709160","url":null,"abstract":"This paper discusses the complementary relationships among component technology, physical design, energy consumption and battery design in reducing the size of wireless terminals.","PeriodicalId":226788,"journal":{"name":"Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116048897","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: 11
A PHEMT MMIC broad-band power amplifier for LMDS 用于LMDS的PHEMT MMIC宽带功率放大器
Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194) Pub Date : 1998-08-09 DOI: 10.1109/RAWCON.1998.709151
Young-Gi Kim, S. Maeng, Jin-Hee Lee, Chul-Soon Park
{"title":"A PHEMT MMIC broad-band power amplifier for LMDS","authors":"Young-Gi Kim, S. Maeng, Jin-Hee Lee, Chul-Soon Park","doi":"10.1109/RAWCON.1998.709151","DOIUrl":"https://doi.org/10.1109/RAWCON.1998.709151","url":null,"abstract":"A two-stage monolithic microwave integrated circuits (MMIC) broad-band power amplifier with AlGaAs/InGaAs/GaAs pseudomorphic high electron mobility transistor (PHEMT) has been developed for the up-link and down-link applications for local multipoint distribution systems (LMDS) in the frequency range of 24 /spl sim/28 GHz. The amplifier has a small signal gain of 18.6 dB at 24.5 GHz and 16.7 dB at 27.1 GHz. It achieved output powers of 19.8 dBm with PAE of 19.8% at 24.5 GHz and 18.8 dBm at 27.1 GHz.","PeriodicalId":226788,"journal":{"name":"Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121947942","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
Broadband data services from a HALO aircraft 来自HALO飞机的宽带数据服务
Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194) Pub Date : 1998-08-09 DOI: 10.1109/RAWCON.1998.709124
P. Diamandis, N. Colella
{"title":"Broadband data services from a HALO aircraft","authors":"P. Diamandis, N. Colella","doi":"10.1109/RAWCON.1998.709124","DOIUrl":"https://doi.org/10.1109/RAWCON.1998.709124","url":null,"abstract":"Scaled Composites Incorporated, a partner of Angel Technologies Corporation, has built a high altitude long operation (HALO) airplane specially engineered for providing a wireless communications networks. The HALO aircraft has a fixed-wing airframe with twin turbofan propulsion. It will be FAA certified for piloted operation. Its high altitude flight regime was pioneered in the 1950s and its components will benefit from decades of aerospace industry experience and innovation. The HALO network will serve tens of thousands of subscribers within a super-metropolitan region, by offering ubiquitous access throughout the network's signal \"footprint\". The HALO aircraft will carry the \"hub\" of a wireless network having a star topology. The initial HALO network is expected to provide a raw bit capacity exceeding 16 Gbps, which by utilizing packet-switching could, for example, serve 50,000 to 100,000 subscribers requiring links with DS1-equivalent peak data rates in both directions. Three HALO aircraft will fly in shifts to provide continuous service, 24 hour per day by 7 days per week with an overall system reliability of 99.9% or greater. The HALO airplane will fly above commercial airline traffic and adverse weather at altitudes higher than 51,000 and will provide a communications service footprint or \"Cone of Commerce\" of approximately 120 kilometers in diameter. Any subscriber within that region will be able to access the HALO network's ubiquitous multi-gigabit per second \"bit cloud\" upon demand.","PeriodicalId":226788,"journal":{"name":"Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124447927","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
Frequency-domain delay distortion equalization-the complex spectrum regeneration method 频域延迟失真均衡——复频谱再生方法
Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194) Pub Date : 1998-08-09 DOI: 10.1109/RAWCON.1998.709183
M. Akaike
{"title":"Frequency-domain delay distortion equalization-the complex spectrum regeneration method","authors":"M. Akaike","doi":"10.1109/RAWCON.1998.709183","DOIUrl":"https://doi.org/10.1109/RAWCON.1998.709183","url":null,"abstract":"In radio communications, equalization of delay distortion due to multipath propagation is one of the most necessary and difficult problems. There are two equalization methods, i.e., the time-domain method and frequency-domain method. The frequency-domain linear equalization, in which equalization is performed by deconvolution of the received signal by the transfer function of the propagation path is presented. Since this method is implemented by software-based devices, faster, stable, and more adaptive equalization is possible.","PeriodicalId":226788,"journal":{"name":"Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194)","volume":"9 12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126551858","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
Comparison of FH/CDMA and DS/CDMA for wireless survivable networks 无线生存性网络FH/CDMA与DS/CDMA的比较
Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194) Pub Date : 1998-08-09 DOI: 10.1109/RAWCON.1998.709128
S. Chuprun, C. Bergstrom
{"title":"Comparison of FH/CDMA and DS/CDMA for wireless survivable networks","authors":"S. Chuprun, C. Bergstrom","doi":"10.1109/RAWCON.1998.709128","DOIUrl":"https://doi.org/10.1109/RAWCON.1998.709128","url":null,"abstract":"The future of military radio networks is changing dramatically along with commercial radio systems. Users are demanding higher bandwidths to support video, image, file transfers, and high quality voice. The methods for supplying capacity retain the centralized approach for commercial systems due to improved cell coverage, hand-off requirements, and access to wired infrastructure. The military has needs for centralized modes for minimal conflict scenarios, however, peer-to-peer modes must remain a top priority to provide survivable communications. Timely message delivery is critical in military networks, which can have no single points of failure and must be self-organizing to be survivable.","PeriodicalId":226788,"journal":{"name":"Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116739545","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
Frustum ray tracing technique for high spatial resolution channel characteristic map 高空间分辨率通道特征图的截锥光线追踪技术
Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194) Pub Date : 1998-08-09 DOI: 10.1109/RAWCON.1998.709184
H. Suzuki, A. Mohan
{"title":"Frustum ray tracing technique for high spatial resolution channel characteristic map","authors":"H. Suzuki, A. Mohan","doi":"10.1109/RAWCON.1998.709184","DOIUrl":"https://doi.org/10.1109/RAWCON.1998.709184","url":null,"abstract":"A novel frustrum ray tracing technique is introduced that utilizes a fast line clipping algorithm rather than the conventional time-consuming ray intersection test algorithm. The usefulness of the technique in predicting channel characteristic maps with high spatial (one fifth of wavelength) resolution incorporating hundreds of thousands receiving points in a complex in-building environment is demonstrated by results predicted by a software program that runs on a typical PC.","PeriodicalId":226788,"journal":{"name":"Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117047963","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 FDM multiple user software configurable arbitrary format (MUSCAF) UHF receiver prototype 一种FDM多用户软件可配置任意格式(MUSCAF) UHF接收机原型
Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194) Pub Date : 1900-01-01 DOI: 10.1109/RAWCON.1998.709130
I. Scott
{"title":"A FDM multiple user software configurable arbitrary format (MUSCAF) UHF receiver prototype","authors":"I. Scott","doi":"10.1109/RAWCON.1998.709130","DOIUrl":"https://doi.org/10.1109/RAWCON.1998.709130","url":null,"abstract":"Conventional PMR style radio receivers based on analog technology receive one frequency channel at any one time. This paper presents an alternative digital solution which currently allows up to 16 simultaneous 12.5 kHz spaced FDM channels to be demodulated to ETSI-B type approval standards, and uses conventional, currently available cost effective componentry. Arbitrary modulation formats per channel are supported. Technical issues up to and including the analog to digital converter (ADC) interface are discussed.","PeriodicalId":226788,"journal":{"name":"Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125547948","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
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