نتایج جستجو برای: آنتنهای mimo

تعداد نتایج: 18427  

2011
Wentao Shi Jianguo Huang Chengbing He

Maximum Likelihood estimator (ML) has shown excellent performance of Direction Of Arrival (DOA) estimation in Multiple Input Multiple Output (MIMO) array. However, the computation burden of MIMO ML is very large. In order to resolve this problem, a novel MIMO Maximum Likelihood DOA Estimation based on Metropolis-Hasting Sampling (MIMO MHML) is proposed, which combines Markov Monte Carlo method ...

2014
SINDHU HAK GUPTA

In this paper, a novel technique known as Cooperative Communication in MIMO has been incorporated. This technique allows single antenna mobiles to have the benefits of MIMO systems. Numerical analysis and mathematical modeling is done for SISO with no cooperation, MIMO with no cooperation and MIMO with cooperation or Cooperative MIMO. Expressions for SNR, Outage probability and capacity over a ...

2011
Jian Chen Hewu Li Feixiong Zhang Jianping Wu

MIMO (Multiple Input Multiple Output) is a key physical mechanism in 802.11n wireless networks, in which there are two MIMO modes: spatial multiplexing and spatial diversity. Due to multiple MIMO modes, rate adaptation is required to optimize the combination of MIMO mode and MCS (Modulation Coding Scheme) by adapting different MIMO modes to different wireless network environments. Therefore, MI...

2006
Kibeom Seong

In this report, we survey the landmark papers on the sum capacity of Gaussian multiple-input multiple-output (MIMO) broadcast channels (BC). Three different groups have reached the same conclusion that the sum rate capacity of Gaussian MIMO BC is achieved by the dirty paper coding (DPC). In particular, we thoroughly investigate the approach which utilized the duality relation between the DPC ac...

Journal: :EURASIP J. Wireless Comm. and Networking 2013
Xiaojing Wang Ying Xiong Bin Tang Yunhao Li

Multiple-input multiple-output (MIMO) radar is a new radar system and draws more and more attentions in recent years. Along with the development of MIMO radar, the MIMO radar countermeasure is brought into being. Since the modulation recognition is of great significance in the electronic reconnaissance, this article presents a modulation recognition method for the signals of the emerging MIMO r...

Journal: :IEICE Transactions 2007
Xiao-Peng Yang Qiang Chen Kunio Sawaya

The effect of wall and indoor scatterers on the indoor multiple input multiple output (MIMO) communication system is investigated by using the hybrid technique of finite difference time domain (FDTD) method and method of moments (MoM). MIMO channel capacity with the wall reflection is investigated with consideration of the eigenvalue of channel covariance matrix, the received power and the effe...

2016
Amar Prakash Jyoti Sumita Mishra

Massive MIMO is also known as very-large MIMO (VLMIMO) and large scale antenna systems (LSAS), Hyper MIMO (HMIMO), Full dimension MIMO (FDMIMO) is advance techniques that potentially can offered the large network capacities in multi-user circumstances. With a massive MIMO system, we consider the case where a base station equipped with a large number of antennas elements instantaneously serves t...

Journal: :IEICE Transactions 2015
Takefumi Hiraguri Kentaro Nishimori

Multiple-input multiple-output (MIMO) transmission is attracting interest for increasing the transmission rates of wireless systems. This paper surveys MIMO transmission technology from the viewpoints of transmission methods, access control schemes, and total transmission efficiency. We consider wireless local area networks (WLAN) systems that use MIMO technology; moreover, we focus on multiuse...

Journal: :IEEE Trans. Signal Processing 2001
Chong-Yung Chi Chii-Horng Chen

Tugnait and Chi and Chen proposed multi-input multi-output inverse filter criteria (MIMO-IFC) using higher order statistics for blind deconvolution of MIMO linear time-invariant systems. This paper proposes three properties on the performance of the MIMO linear equalizer associated with MIMO-IFC for any signal-to-noise ratio, including P1) perfect phase equalization property, P2) a relation to ...

2012
Abbas Mohammadi Fadhel M. Ghannouchi

This practical resource offers a thorough examination of RF transceiver design for MIMO communications. Offering a practical view on MIMO wireless systems, this book extends fundamental concepts on classic wireless transceiver design techniques to MIMO transceivers. This helps reader gain a very comprehensive understanding of the subject. This in-depth volume describes many theoretical and impl...

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