integration with existing systems. LTE-Advanced (also known as LTE Release 10) significantly enhances the existing LTE Release 8 and supports much higher peak rates, higher throughput and coverage, and lower latencies, resulting in a better user experience. Additionally, LTE Release 10 will support heterogeneous deployments where low-power nodes comprising picocells, femtocells, relays, remote radio heads, and so on are placed in a macrocell layout. The LTE-Advanced features enable one to meet or exceed IMT-Advanced requirements. It may also be noted that LTE Release 9 provides some minor enhancement to LTE Release 8 with respect to the air interface, and includes features like dual-layer beamforming and time-difference- of-arrival-based location techniques. In this article an overview of the techniques being considered for LTE Release 10 (aka LTEAdvanced) is discussed. This includes bandwidth extension via carrier aggregation to support deployment bandwidths up to 100 MHz, downlink spatial multiplexing including single-cell multi-user multiple-input multiple-output transmission and coordinated multi point transmission, uplink spatial multiplexing including extension to four-layer MIMO, and heterogeneous networks with emphasis on Type 1 and Type 2 relays. Finally, the performance of LTEAdvanced using IMT-A scenarios is presented and compared against IMT-A targets for full buffer and bursty traffic model.
19.题名:Cognitive radio: brain-empowered wireless communications 作者:Haykin, S.
出处:Selected Areas in Communications, IEEE Journal on Volume: 23 Issue: 2 Date: Feb. 2005 Page(s): 201 - 220 Digital Object Identifier : 10.1109/JSAC.2004.839380
摘要:Cognitive radio is viewed as a novel approach for improving the utilization of a precious natural resource: the radio electromagnetic spectrum. The cognitive radio, built on a software-defined radio, is defined as an intelligent wireless communication system that is aware of its environment and uses the methodology of understanding-by-building to learn from the environment and adapt to statistical variations in the input stimuli, with two primary objectives in mind: · highly reliable communication whenever and wherever needed; · efficient utilization of the radio spectrum. Following the discussion of interference temperature as a new metric for the quantification and management of interference, the paper addresses three fundamental cognitive tasks. 1) Radio-scene analysis. 2) Channel-state estimation and predictive modeling. 3) Transmit-power control and dynamic spectrum management. This work also discusses the emergent behavior of cognitive radio.
20.题名:New Space Shift Keying Modulation with Hamming Code-Aided Constellation Design 作者:Chang, R.Y. Sian-Jheng Lin Wei-Ho Chung 出处:Wireless Communications Letters, IEEE
Volume: 1 Issue: 1 Date: February 2012 Page(s):2 - 5
Digital Object Identifier : 10.1109/WCL.2012.102711.110037
摘要:A modulation scheme that maps the information onto the antenna indices, such as space shift keying (SSK) and its generalized form (namely, generalized SSK or GSSK), presents an attractive option for the emerging large-scale MIMO system due to the reduced algorithm and hardware cost. In this letter, we present a new modulation scheme in this category, where we propose use of the Hamming code construction technique to systematically design the
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constellation. An illustrative example and experimental studies demonstrate that the proposed scheme introduces rich design flexibility and achieves better transmission rate, performance, and power tradeoffs with comparable hardware costs as compared with existing schemes.
四、ACM 最新会议(来源:http://www.acm.org/)
1.会议名称:The annual ACM Computer and Communications Security Conference 会议时间:October 16 - October 18 2012 会议地点:Raleigh NC USA
会议简介:The annual ACM Computer and Communications Security Conference is a leading international forum for information security researchers, practitioners, developers, and users to explore cutting-edge ideas and results, and to exchange techniques, tools, and experiences. We invite submissions from academia, government, and industry presenting novel research on all theoretical and practical aspects of computer security, as well as case studies and implementation experiences.
论文提交网址:http://www.sigsac.org/ccs/CCS2012/
2. 会议名称:RIIT '12
会议时间:October 11- October 13 2012 会议地点:Calgary AB Canada
会议简介:SIGITE is the Association for Computing Machinery‘s Special Interest Group for Information Technology Education. Our members include information technology faculty (teachers and researchers), students, and industry professionals.
With over 400 members worldwide, SIGITE drives the creation and dissemination of the computing discipline of information technology. The organization has created a model undergraduate curriculum and helped create accreditation guidelines for IT programs, and is now defining and promoting IT research.
3. 会议名称: SIGUCCS '12
会议时间:October 15 - October 19 2012 会议地点:Memphis TN USA
会议简介:Come and share your projects, ideas, implementations, and lessons learned with your colleagues while enjoying friendly hospitality, southern food, and great music in Memphis.
This SIGUCCS 2012 annual event blends the Fall User Services Conference and the Spring Management Symposium. You will have the opportunity to attend the entire week or either of the two components. The conference will bring together managers and support personnel to learn new techniques, share ideas and gather insights. It will afford your team the opportunity to establish long-lasting professional relationships and enhance your management, leadership and technical
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skills.
论文提交网址:http://www.siguccs.org/Conference/2012/
4. 会议名称:ACM Symposium on Cloud Computing 会议时间:October 14th-17th, 2012 会议地点:San Jose, CA
会议简介:The ACM Symposium on Cloud Computing 2012 is the third in a new series of symposia that brings together researchers, developers, users, and practitioners interested in cloud computing. Co-sponsored by the ACM Special Interest Groups on Management of Data (SIGMOD) and on Operating Systems (SIGOPS), SoCC 2012 will take place from October 14th-17th in San Jose, CA. For the first time, ACM SoCC 2012 is being held independently, recognizing the growing research fertility and societal/commercial importance of cloud computing. (SoCC was previously held in conjunction with the SIGMOD and SOSP). 论文提交网址:http://www.socc2012.org/
5.会议名称:Hybrid Systems: Computation and Control (HSCC 2013) 会议时间:April 8-11, 2013, 会议地点:Philadelphia, USA
论文提交网址:http://hscc2013.hscc-conference.org/
五、AIAA最新会议(来源:http://www.aiaa.org/)
1. 会议名称:NASA Technology Days 会议时间:11/28/2012 - 11/30/2012 会议地点:Cleveland, OH
会议简介:Join NASA for ―Technology Days‖ in Cleveland, Ohio from November 28–30, 2012. This three-day event and technology showcase will bring together a broad community of stakeholders from industry, academia, and the U.S. government to engage in strategy development, partnership building, and implementation of ways to foster technology transfer and innovation. The objectives of the event are twofold:
?Day 1: Technology and Innovation at NASA General Session: An introduction and status update of NASA‘s technology programs that explores new approaches to current missions and strives to address challenges for NASA‘s future missions. Presentations will delivered by key NASA program executives and leaders throughout the day.
?Day 2 and 3: A technology exposition will showcase NASA-developed technologies to individuals interested in commercialization or business development partnerships.
Get a comprehensive overview of NASA‘s technology programs for space exploration and aeronautics, and discover innovative and advanced technologies which are stimulating the economy and sustaining our nation‘s global competitiveness.
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?Learn about the Space Technology Program objectives, successes, and plans for the future ?Get an in-depth overview of NASA‘s potential industry partnerships and opportunities ?Discuss Agency-wide technology transfer and commercialization efforts
?Engage with program managers and network with peers on potential collaborative enterprises ?Explore the technology showcase featuring mature technologies from the Aerospace, Advanced Energy, Automotive , Innovative Manufacturing, and Human Health industries. The demonstrations and exhibits will provide attendees opportunities for networking, business development and forging new relationships , while learning about the leading technologies contributing to American economic growth and innovation.
2. 会议名称:51st AIAA Aerospace Sciences Meeting 会议时间: 01/07/2013 - 01/10/2013
会议地点:Grapevine (Dallas/Ft. Worth Region), Texas 会议简介:ASM is Where it All Comes Together!
No matter where you go at the Aerospace Sciences Meeting (ASM), there is always something happening. From plenary sessions addressing critical topics for the future of the industry to presentations on current state-of-the-art technologies. From student paper competitions to panel sessions that foster discussion and debate among stakeholders. From hallway conversations with colleagues to meeting new contacts at receptions. From lectures by renowned speakers addressing topics of general interest to special presentations on the exhibit hall stage. From a luncheon that addresses a timely policy issue to an off-site social event that provides a fun and informal way to interact with other attendees.
ASM is the first major multidisciplinary event of the year for aerospace scientists and engineers from around the world. It provides an ideal forum for industry, government, and academia to share and disseminate scientific knowledge and research results with a view toward new technologies for aerospace systems.
This conference is built around excellent technical paper presentation sessions. Plenary sessions that focus attention on program areas of current interest will start some sessions, followed by technical papers providing additional discussion of these topics. Distinguished lectures and evening networking events fill out the remainder of the program throughout the week. New Horizons Forum
The New Horizons Forum is held in conjunction with the AIAA Aerospace Sciences Meeting. The Forum features panel discussions and keynote speakers from industry and government who share their perspectives on the new challenges, future opportunities, and emerging trends in aerospace education, research, and programs. Aerospace Exposition
The Aerospace Exposition showcases exhibits from various sectors of the aerospace community—from larger organizations to small businesses. The Exposition provides opportunities for one-on-one discussions with exhibitors, hardware and software demonstrations, and side meetings with these organizations throughout the week. 论文提交网址:
https://www.aiaa.org/ASM2013AA/?utm_source=AA&utm_medium=Print&utm_content=Register&utm_campaign=ASM2013
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3. 会议名称:2013 Congressional Visits Day 会议时间:03/19/2013 - 03/20/2013 会议地点:Washington, DC,
会议简介:Raise the Image of Aerospace in Washington
Every year, AIAA members – engineers, scientists, researchers, students, educators, and technology executives – come to Washington, D.C. to take part in AIAA‘s Congressional Visits Day program (CVD). They meet with national decision makers to discuss critical industry issues in civil aeronautics, civil astronautics, and defense.
What‘s our goal? Through face-to-face meetings with Members of Congress, congressional staff, key administration officials, and other decision makers, Congressional Visits Day raises awareness of the long-term value that science, engineering, and technology bring to America.
Make sure that you don‘t miss out on this vital opportunity to have your Congressional representative hear your voice – register for CVD today!
4. 会议名称:22nd AIAA Aerodynamic Decelerator Systems Technology Conference and Co-located Conferences
会议时间:03/25/2013 - 03/28/2013 会议地点:Daytona Beach, Florida
会议简介:AIAA is pleased to announce the co-located 22nd AIAA Aerodynamic Decelerator Systems Technology Conference and Seminar, AIAA Balloon Systems Conference, and 20th AIAA Lighter-Than-Air Systems Technology Conference. This event provides an unrivaled opportunity to gather the world‘s leading parachute and flexible structure scientists, engineers, researchers, and managers from all over the globe for technical interchange and technology advancement. The co-location of these related AIAA events provides attendees with a unique opportunity to expand their knowledge of technological advances of these interrelated disciplines and explore areas of common technical expertise. Event participants will:
?Present recent advances before a knowledgeable international audience
?Educate industry customers and providers on their latest research and product developments
?Extract lessons learned from past system applications and programs to result in increased technical success, cost savings, and schedule savings for current or ensuing projects or programs ?Network to engage new contacts and refresh old ones
?Recognize significant achievements from within the community Seminar
On Monday, 25 March 2013, the ADS Technical Committee will host a one-day seminar on Entry, Descent, and Landing (EDL). Engineers presently involved in EDL research, development, and flight missions will present this seminar. The objective of this seminar is to introduce the attendees to the challenges associated with EDL, the technologies used to address these challenges, and the nomenclature typically used to discuss EDL. Topics will include trajectories, hypersonic aerodynamics and aerothermodynamics, rigid and deployable aerodynamic decelerators, supersonic retropropulsion, and landing systems. The seminar will conclude with a case study of a flight mission that utilized EDL.
论文提交网址:https://www.aiaa.org/ADS2013/
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