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2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals最新文献

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Opportunistic spectrum sensing in cognitive radio systems 认知无线电系统中的机会频谱感知
2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals Pub Date : 2011-09-26 DOI: 10.1109/IMWS2.2011.6027179
T. Ban, Wan Choi
{"title":"Opportunistic spectrum sensing in cognitive radio systems","authors":"T. Ban, Wan Choi","doi":"10.1109/IMWS2.2011.6027179","DOIUrl":"https://doi.org/10.1109/IMWS2.2011.6027179","url":null,"abstract":"This paper proposes an opportunistic spectrum sensing scheme where a single secondary user with the highest channel condition is selected for spectrum sensing. Contrary to the MRC-based sensing scheme, the proposed sensing scheme is efficient in terms of energy consumption and signaling overheads. We show that the proposed opportunistic sensing scheme achieves comparable throughput efficiency to the MRC based cooperative sensing while it significantly reduces power consumption and signaling overheads.","PeriodicalId":367154,"journal":{"name":"2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133847984","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
A 60-GHz transceiver system with low-power CMOS OOK modulator and demodulator 采用低功耗CMOS OOK调制器和解调器的60 ghz收发器系统
2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals Pub Date : 2011-09-26 DOI: 10.1109/IMWS2.2011.6027205
C. Byeon, Jae Jin Lee, H. Kim, I. Song, S. Cho, K. Eun, I. Oh, C. Park
{"title":"A 60-GHz transceiver system with low-power CMOS OOK modulator and demodulator","authors":"C. Byeon, Jae Jin Lee, H. Kim, I. Song, S. Cho, K. Eun, I. Oh, C. Park","doi":"10.1109/IMWS2.2011.6027205","DOIUrl":"https://doi.org/10.1109/IMWS2.2011.6027205","url":null,"abstract":"A 60GHz transceiver system with low-power CMOS OOK modulator and demodulator is presented in this paper. The 60 GHz modulator is designed in a 90-nm CMOS process by current reuse and consumes 14.4-mW dc power at the ON-state. A data rate of up to 2 Gb/s has been measured. The 60GHz OOK demodulator is designed in a 130nm CMOS process. The demodulator consumes 14.7 mW, and recovers up to 5 Gb/s with the gain boosting detector and baseband amplifier. The fabricated 60 GHz modulator and demodulator are successfully integrated in an LTCC SiP transmitter module and receiver module with 1 by 2 patch antenna, respectively. Using these LTCC SiP modules, 648 Mb/s wireless video transmission was successfully demonstrated at 20-cm wireless distance.","PeriodicalId":367154,"journal":{"name":"2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals","volume":"129 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115380781","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
RF energy harvesting techniques for wirelessly powered devices 无线供电设备的射频能量收集技术
2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals Pub Date : 2011-09-26 DOI: 10.1109/IMWS2.2011.6027184
Shiho Kim
{"title":"RF energy harvesting techniques for wirelessly powered devices","authors":"Shiho Kim","doi":"10.1109/IMWS2.2011.6027184","DOIUrl":"https://doi.org/10.1109/IMWS2.2011.6027184","url":null,"abstract":"A power source combined with energy harvesting can provide wireless devices for low maintenance cost or extended battery life. We reviewed RF energy harvesting circuits for delivering power to wireless system operating at very low power levels with high efficiency. We need to apply low power control techniques to perform smart management for the wirelessly powered devices.","PeriodicalId":367154,"journal":{"name":"2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124155707","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: 23
A ML/DFE and iterative spatial interference cancellation for 2×2 BICM MIMO system 2×2 BICM MIMO系统的ML/DFE与迭代空间干扰消除
2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals Pub Date : 2011-09-26 DOI: 10.1109/IMWS2.2011.6027197
Chanho Yoon, Hoojin Lee, H. Park, Joonhyuk Kang
{"title":"A ML/DFE and iterative spatial interference cancellation for 2×2 BICM MIMO system","authors":"Chanho Yoon, Hoojin Lee, H. Park, Joonhyuk Kang","doi":"10.1109/IMWS2.2011.6027197","DOIUrl":"https://doi.org/10.1109/IMWS2.2011.6027197","url":null,"abstract":"In this paper, we propose a low complexity iterative two transmit and two receive MIMO detection technique achieving full coded ML performance for bit interleaved coded modulation (BICM) based MIMO system. Unlike the conventional iterative SIC/HIC-MMSE decoding approach, the update corresponding LLRs in iterative mode. From computer simulation results, our proposed iterative scheme outperforms previously proposed iterative receivers as well as full coded ML detector.","PeriodicalId":367154,"journal":{"name":"2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124397650","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
Fast handover scheme using handover notification with no acknowledgement 使用无确认切换通知的快速切换方案
2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals Pub Date : 2011-09-26 DOI: 10.1109/IMWS2.2011.6027177
Min Lee, S. Oh
{"title":"Fast handover scheme using handover notification with no acknowledgement","authors":"Min Lee, S. Oh","doi":"10.1109/IMWS2.2011.6027177","DOIUrl":"https://doi.org/10.1109/IMWS2.2011.6027177","url":null,"abstract":"In this paper, we deal with a fast handover scheme using handover notification with no acknowledgement for reserved access in 3rd-generation partnership project long term evolution (3GPP-LTE) system [1]. In the proposed handover scheme, a handover UE designates an RAP in advance and notifies it to the target eNB via the source eNB. Then, the handover UE detaches the connection to the source eNB and tries random access using the reserved RAP with no acknowledgement. Therefore, the handover delay can be greatly reduced, since the handover UE does not wait the acknowledgement from the source eNB and secures access to the target eNB without collision.","PeriodicalId":367154,"journal":{"name":"2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134287005","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
Efficient signal detection of cognitive radio systems for wireless ad-hoc networks 无线自组织网络中认知无线电系统的有效信号检测
2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals Pub Date : 2011-09-26 DOI: 10.1109/IMWS2.2011.6027192
Y. Kim, K. Lee, J. Kim
{"title":"Efficient signal detection of cognitive radio systems for wireless ad-hoc networks","authors":"Y. Kim, K. Lee, J. Kim","doi":"10.1109/IMWS2.2011.6027192","DOIUrl":"https://doi.org/10.1109/IMWS2.2011.6027192","url":null,"abstract":"In this paper, we analyze and simulate the efficient signal detection algorithm for wireless ad-hoc network based on the cognitive radio (CR) systems. For improvement of the signal detection probability, we use the digital watermarking sequence to the CR based wireless ad-hoc network. In the simulation results, we show the correlation value and the signal detection probability using digital watermarking sequence.","PeriodicalId":367154,"journal":{"name":"2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124040826","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
Performance analysis of Alamouti scheme in free-space optical communications channel 自由空间光通信信道中Alamouti方案的性能分析
2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals Pub Date : 2011-09-26 DOI: 10.1109/IMWS2.2011.6027196
Jaedon Park, Eunju Lee, Suil Kim, G. Yoon
{"title":"Performance analysis of Alamouti scheme in free-space optical communications channel","authors":"Jaedon Park, Eunju Lee, Suil Kim, G. Yoon","doi":"10.1109/IMWS2.2011.6027196","DOIUrl":"https://doi.org/10.1109/IMWS2.2011.6027196","url":null,"abstract":"In this study, the power series expression of the average bit error rate (BER) of the Alamouti scheme is derived in gamma-gamma fading channels using the SIM scheme. According to the analysis, the Alamouti scheme could achieve a high signal-to-noise ratio (SNR) gain of 37 dB in a strong turbulence regime, and also a high SNR gain of 27 dB in a moderate turbulence regime over the no diversity at the BER of 10−6.","PeriodicalId":367154,"journal":{"name":"2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals","volume":"600 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116298427","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 wide-band CMOS low noise amplifier for LTE application 一种用于LTE应用的宽带CMOS低噪声放大器
2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals Pub Date : 2011-09-26 DOI: 10.1109/IMWS2.2011.6027204
O. Hidayov, Il-Hoon Jang, Seok-Kyun Han, Sang-Gug Lee, Justin Cartwight
{"title":"A wide-band CMOS low noise amplifier for LTE application","authors":"O. Hidayov, Il-Hoon Jang, Seok-Kyun Han, Sang-Gug Lee, Justin Cartwight","doi":"10.1109/IMWS2.2011.6027204","DOIUrl":"https://doi.org/10.1109/IMWS2.2011.6027204","url":null,"abstract":"In this work, a wide band LNA for implementation in Long Term Evolution (LTE) systems is presented. A common gate amplifier with active noise cancellation is adopted to provide wide band input matching and a low noise figure (NF). To mitigate parastics and obtain improved noise performance, an inner-cascode inductor is added. The inter-cascode inductor also allows for bandwidth extension without significant peaking in the frequency response with voltage gain 17.3dB. The proposed LNA is designed in 0.18 um CMOS technology. From post-layout simulations, the design consumes 9.5 mA from a 1.8 V supply and operates in the frequency range of 0.7–2.7 GHz. The simulations also show S11<−10, a 2dB NF, and an IIP3 of approximately 5 dBm.","PeriodicalId":367154,"journal":{"name":"2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129732916","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
The current trends and issues on ITS in Japan: Safety, energy and environment 当前日本智能交通系统的发展趋势和问题:安全、能源和环境
2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals Pub Date : 2011-09-26 DOI: 10.1109/IMWS2.2011.6027181
S. Tsugawa
{"title":"The current trends and issues on ITS in Japan: Safety, energy and environment","authors":"S. Tsugawa","doi":"10.1109/IMWS2.2011.6027181","DOIUrl":"https://doi.org/10.1109/IMWS2.2011.6027181","url":null,"abstract":"Japan has been conducting ITS (Intelligent Transport Systems) projects since mid 1980s aiming at safety and less congestion of road transportation. The car navigation systems, driver information systems, and ETC (Electronic Toll Collection) are already widespread, and large scale experiments on cooperative systems with road-to-vehicle and vehicle-to-vehicle communications for safety were conducted for near future introduction. The communication technologies are based on 5.8 GHz DSRC. In addition in a project aiming at energy saving and CO2 emission reduction, an automated truck platoon has been developed. One of the issues is low penetration of the safety-related systems.","PeriodicalId":367154,"journal":{"name":"2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133419365","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
Efficient scheduling request algorithm for opportunistic wireless access 机会无线接入的高效调度请求算法
2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals Pub Date : 2011-09-26 DOI: 10.1109/IMWS2.2011.6027178
Haewoon Nam, Mohamed-Slim Alouini
{"title":"Efficient scheduling request algorithm for opportunistic wireless access","authors":"Haewoon Nam, Mohamed-Slim Alouini","doi":"10.1109/IMWS2.2011.6027178","DOIUrl":"https://doi.org/10.1109/IMWS2.2011.6027178","url":null,"abstract":"An efficient scheduling request algorithm for opportunistic wireless access based on user grouping is proposed in this paper. Similar to the well-known opportunistic splitting algorithm, the proposed algorithm initially adjusts (or lowers) the threshold during a guard period if no user sends a scheduling request. However, if multiple users make requests simultaneously and therefore a collision occurs, the proposed algorithm no longer updates the threshold but narrows down the user search space by splitting the users into multiple groups iteratively, whereas the opportunistic splitting algorithm keeps adjusting the threshold until a single user is found. Since the threshold is only updated when no user sends a request, it is shown that the proposed algorithm significantly alleviates the burden of the signaling for the threshold distribution to the users by the scheduler. More importantly, the proposed algorithm requires a less number of mini-slots to make a user selection given a certain scheduling outage probability.","PeriodicalId":367154,"journal":{"name":"2011 IEEE MTT-S International Microwave Workshop Series on Intelligent Radio for Future Personal Terminals","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133053192","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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