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... Theatre Guide Cinema Guide Tonight Silently speaking volumes Mimos 95, France's international mime festival, was rich ...

1995 - Gale Group | TDA

Artigo Revisado por pares

William L. Root, Pravin Varaiya,

... Cross Ref Semantically Secure Lattice Codes for Compound MIMO ChannelsIEEE Transactions on Information Theory, Vol. 66, No. ... IWCIT) | 1 Apr 2019 Cross Ref Foundations of MIMO Communication10 December 2018 Cross Ref Universal Lattice Codes for MIMO ChannelsIEEE Transactions on Information Theory, Vol. 64, No. ... Singular Value Inequalities and Their Applications to Uncertain MIMO ChannelsIEEE Transactions on Information Theory, Vol. 61, No. ... Cross Ref Space-Time Coding over Real-World MIMO Channels with No Transmit Channel KnowledgeMimo Wireless Networks | ...

Tópico(s): Computability, Logic, AI Algorithms

1968 - Society for Industrial and Applied Mathematics | SIAM Journal on Applied Mathematics

Jornais Acesso aberto

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... The cryptogram Just like old mimes At the Mimos Festival in the Dordogne, one of Europe's ...

1994 - Gale Group | TDA

Artigo Revisado por pares

Konstantinos Liolis, Athanasios D. Panagopoulos, Panayotis G. Cottis, Bhaskar D. Rao,

... investigates the applicability of multiple-input-multiple-output (MIMO) technology to broadband fixed wireless access (BFWA) systems ... GHz frequency range. In order to employ the MIMO principle at these frequencies, the spatial channel benefits ... relevant since multipath is insignificant. Therefore, a special MIMO/BFWA channel may be implemented if every subscriber ... multiple base stations. The exact relationship between conventional MIMO and the proposed 10-66 GHz MIMO/BFWA channels is established. Then, emphasis is put ...

Tópico(s): Advanced Wireless Communication Techniques

2009 - IEEE Communications Society | IEEE Transactions on Communications

Livro

OAPEN Free

Artigo Revisado por pares

Yong Wu, Jun Tang, Yuxing Peng,

... optimum performance evaluation for multiple-input multiple-output (MIMO)-based space–time adaptive processing radar is addressed. ... is developed to account for both code diverse MIMO (c-MIMO) and frequency diverse MIMO (f-MIMO), and a general framework on performance evaluation is ... waveform configurations including phased array (PA), partially correlated MIMO and ideally orthogonal MIMO. The proposed framework evaluates the system performance through ... freedom (system NDoF). The waveform diversity introduced by MIMO, especially f-MIMO, could significantly enhance the OP ...

Tópico(s): Direction-of-Arrival Estimation Techniques

2009 - Institution of Engineering and Technology | IET Radar Sonar & Navigation

Livro

OAPEN Free

Artigo Acesso aberto Revisado por pares

Jun Zhang, Robert W. Heath, Marios Kountouris, Jeffrey G. Andrews,

... degrades the performance of multiple-input multiple-output (MIMO) communications; its effects on single-user (SU) and multiuser (MU) MIMO transmissions are quite different. In particular, MU-MIMO suffers from residual interuser interference due to imperfect channel state information while SU-MIMO only suffers from a power loss. This paper ... the throughput loss of both SU and MU-MIMO in the broadcast channel due to delay and ... for achievable rates for both SU and MU-MIMO. It is shown that SU-MIMO is relatively ...

Tópico(s): Energy Harvesting in Wireless Networks

2009 - Springer Science+Business Media | EURASIP Journal on Advances in Signal Processing

Artigo Revisado por pares

Lei Wang, Naresh R. Shanbhag,

... AEC) technique, denoted as multi-input-multi-output (MIMO)-AEC, for the design of low-power MIMO signal processing systems. The MIMO-AEC technique builds on the previously proposed AEC technique by employing an algorithm transformation denoted as MIMO decorrelating (MIMO-DECOR) transform. MIMO-DECOR reduces complexity by exploiting correlations inherent in MIMO systems, thereby improving the energy efficiency of AEC. The proposed MIMO-AEC enables energy minimization of MIMO systems by correcting transient/soft errors that arise ...

Tópico(s): Analog and Mixed-Signal Circuit Design

2003 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Very Large Scale Integration (VLSI) Systems

Artigo Revisado por pares

Andrea Goldsmith, Syed A. Jafar, Nihar Jindal, Sriram Vishwanath,

... single-user and multiuser multiple-input multiple-output (MIMO) channels. Although enormous capacity gains have been predicted ... can dramatically impact the potential capacity gains of MIMO techniques. For time-varying MIMO channels there are multiple Shannon theoretic capacity definitions ... and capacity versus outage results for single-user MIMO channels. These results indicate that the capacity gain ... the broadcast channel. In contrast to single-user MIMO channels, capacity results for these multiuser MIMO channels ...

Tópico(s): Advanced Wireless Network Optimization

2003 - Institute of Electrical and Electronics Engineers | IEEE Journal on Selected Areas in Communications

Livro

OAPEN Free

Artigo Acesso aberto Revisado por pares

Yi Qu, Guisheng Liao, Shengqi Zhu, Xiangyang Liu, H. Jiang,

The full MIMO radar and the partial MIMO one are introduced. The performance analysis of beamforming for MIMO (Multiple-input Multiple-output) radar and comparisons with the phased-array radar are ... of beamwidth, gain loss and detection range for MIMO radar are derived. Theoretical analysis and simulations show that the beam of the full MIMO utilizing all virtual array elements is identical to ... radar, and that the beam of the partial MIMO selecting elements with different phase centers (phase shifts) ...

Tópico(s): Advanced SAR Imaging Techniques

2008 - | Electromagnetic waves

Livro

OAPEN Free

Artigo Revisado por pares

Heung‐Gyoon Ryu,

... hand, a great attention has been devoted to MIMO (multiple input multiple output) antenna array systems and ... Rx antennas configuration, we evaluate the performance of MIMO OFDM and MIMO CI- OFDM system. SFBC (space frequency block coding) coding is applied into both MIMO OFDM system and MIMO CI-OFDM system. For CI-OFDM realization, digital ... From the simulation results, it is shown that MIMO SFBC CI-OFDM reduces PAPR significantly compared with MIMO SFBC-OFDM system. The out-of band re-growth of signal spectrum in MIMO SFBC CI-OFDM system is much smaller than ...

Tópico(s): Wireless Communication Networks Research

2008 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Consumer Electronics

Livro

OAPEN Free

Artigo Revisado por pares

J Wang, Shun Jiang, Jiafan He, Zujun Liu, Chris Baker,

... adaptive target detection by multi-input multi-output (MIMO) radar with multiple antennas at each of the receiver sites. MIMO radar has been postulated to have a number ... the authors consider the issue of the overall MIMO radar system steering vector which should be aligned ... likelihood ratio principle and Rao test criterion. Subsequently, MIMO versions of the subspace generalised likelihood ratio test (MIMO-SGLRT), the subspace adaptive beam-former orthogonal rejection test (MIMO-SABORT) and the subspace Rao (MIMO-SRao) detector ...

Tópico(s): Direction-of-Arrival Estimation Techniques

2010 - Institution of Engineering and Technology | IET Radar Sonar & Navigation

Artigo Acesso aberto Revisado por pares

Marco Chiani, Moe Z. Win, Hyundong Shin,

Multiple-input multiple-output (MIMO) systems are being considered as one of the key enabling technologies for future wireless networks. However, the decrease in capacity due to the presence of interferers in MIMO networks is not well understood. In this paper, ... an analytical framework to characterize the capacity of MIMO communication systems in the presence of multiple MIMO co-channel interferers and noise. We consider the ... with application to both single-user and multiuser MIMO systems. In particular, we derive the ergodic mutual ...

Tópico(s): Advanced Wireless Communication Techniques

2010 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Information Theory

Artigo Acesso aberto Revisado por pares

Kentaro Nishimori, Riichi Kudo, Naoki Honma, Yasushi Takatori, Masato Mizoguchi,

Multi-user multiple input multiple output (MU-MIMO) systems have attracted much attention as a technology that enhances the total system capacity by generating a virtual MIMO channel between a base station and multiple terminal ... there are many more system parameters in MU-MIMO than in single user (SU)-MIMO and the MU-MIMO performance in actual environments is still not well ... features and effectiveness of a 16 × 16 MU-MIMO testbed in an actual indoor environment. Moreover, we propose a simple adaptive modulation scheme for MU-MIMO-OFDM transmission that employs a bit interleaver in ...

Tópico(s): Advanced Wireless Communication Techniques

2010 - Institute of Electronics, Information and Communication Engineers | IEICE Transactions on Communications

Artigo Acesso aberto Revisado por pares

Mohammed El‐Hajjar, Lajos Hanzo,

... beamforming gains. Following a brief classification of different MIMO schemes, where the different MIMO schemes are categorized as diversity techniques, multiplexing schemes, ... beamforming techniques, we introduce the family of multifunctional MIMOs. These multifunctional MIMOs are capable of combining the benefits of several MIMO schemes and hence attaining improved performance in terms ... as well as throughput. The family of multifunctional MIMOs combines the benefits of both space-time coding ... diversity, multiplexing, and beamforming gains of the different MIMO schemes in order to document the advantages of ...

Tópico(s): Advanced

2010 - Institute of Electrical and Electronics Engineers | IEEE Wireless Communications

Artigo Acesso aberto

Farhan Khalid, Joachim Speidel,

... in the field of multiple-input multiple-output (MIMO) wireless communication systems. The state of the art in single-user MIMO (SU-MIMO) and multiuser MIMO (MU-MIMO) communications is presented, highlighting the key aspects of ... technologies. Both open-loop and closed-loop SU-MIMO systems are discussed in this paper with particular emphasis on the data rate maximization aspect of MIMO. A detailed review of various MU-MIMO uplink and downlink techniques then follows, clarifying the ...

Tópico(s): Cooperative Communication and Network Coding

2010 - Scientific Research Publishing | International Journal of Communications Network and System Sciences

Artigo Revisado por pares

Weiyan Ge, Junshan Zhang, Guoliang Xue,

Multiple-input-multiple-output (MIMO) technology, which is a recent breakthrough in wireless communications, has been shown to significantly improve channel capacity in single-user ... However, obtaining a rigorous understanding of the possible MIMO gains in multihop networks is still an open ... point-to-point settings dictate that leveraging the MIMO gains in multihop networks requires a domain change ... interference management toward understanding fundamental tradeoffs among possible MIMO gains in multihop networks. We first take a ...

Tópico(s): Wireless Networks and Protocols

2010 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Vehicular Technology

Artigo

Cheng‐Xiang Wang, Xuemin Hong, Xiaohu Ge, Xiang Cheng, Gong Zhang, John Thompson,

... performance gains similar to those provided by conventional MIMO systems. It promises significant improvements in spectral efficiency ... the design and accurate performance assessment of cooperative MIMO systems, realistic cooperative MIMO channel models are indispensable. This article provides an ... of the state of the art in cooperative MIMO channel modeling. We show that although the existing standardized point-to-point MIMO channel models can be applied to a certain extent to model cooperative MIMO channels, many new challenges remain in cooperative MIMO ...

Tópico(s): Millimeter-Wave Propagation and Modeling

2010 - Institute of Electrical and Electronics Engineers | IEEE Communications Magazine

Artigo Revisado por pares

Li‐Chun Wang, Chu-Jung Yeh,

... receive zero-forcing (ZF) multiple-input multiple-output (MIMO) broadcast systems with user selection, respectively. Instead of ... derive the sum rate formulas of the ZF MIMO broadcast systems with a small number of scheduled ... of feedback channel into account, the receive ZF MIMO broadcast system is more robust to feedback errors ... even higher sum rate than the transmit ZF MIMO broadcast system. We discuss whether a feedback channel ... CSI for selecting users in the receive ZF MIMO broadcast system. Our results show that as the ...

Tópico(s): Cooperative Communication and Network Coding

2010 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Wireless Communications

Artigo Revisado por pares

Wan Choi, Jeffrey G. Andrews, Robert W. Heath,

... success. Multiantenna technologies called multiple-input multiple-output (MIMO) are an obvious candidate to increase, particularly, downlink capacity. Nearly all research on MIMO-CDMA, however, has focused on increasing the throughput ... and receive antennas. Straightforward application of the known MIMO techniques to such a system does not substantially ... of supportable users. To overcome this, a novel MIMO-CDMA system design based on user partitioning is ... over both the conventional CDMA and the static MIMO-CDMA scheme. This gain can be credited to ...

Tópico(s): Advanced

2007 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Vehicular Technology

Artigo

Akiyo Yoshimoto, Takeshi Hattori,

... we propose a power allocation of multi-link MIMO system. The multi-link MIMO system transmits different signals to a mobile station ... to optimize the capacity of the multi-link MIMO channel. This paper focuses on the downlink channel ... that the area coverage of the multi-link MIMO systems with equal power allocation was greatly improved compared with that of conventional single-link MIMO systems. However, when the capacity of MIMO channel was optimized by water filling power allocation ... the case of (3,1) and (6, 3) MIMO systems, there were regions that single-link MIMO ...

Tópico(s): Advanced Wireless Network Optimization

2007 - Institute of Electrical and Electronics Engineers | IEEE Vehicular Technology Conference

Artigo Revisado por pares

Daewon Song, Chang Wen Chen,

... 264/AVC video over multi-input multi-output (MIMO) wireless systems. With this approach, the application layer ... propose a new layered video transmission scheme over MIMO: adaptive channel selection (ACS). ACS-MIMO is fundamentally different from parallel transmission MIMO (PT-MIMO). While each bit stream is continuously transmitted through a fixed antenna in PT-MIMO, ACS-MIMO is able to periodically switch each bit stream ... error protection (UEP) for layered SVC transmission over MIMO system without power control at the transmitter. Experimental ...

Tópico(s): Advanced

2007 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Circuits and Systems for Video Technology