نتایج جستجو برای: آنتنهای mimo

تعداد نتایج: 18427  

2014
Arjun Chopra Komal Arora

Increased data rates and reliability are the two key factors required to support emerging multimedia applications and new communications technologies. The two techniques used in high data rate transmission are orthogonal frequency division multiplexing (OFDM) and multiple-input multiple-output (MIMO) scheme. The OFDM is used to mitigate the problem of inter symbol interference (ISI) and provide...

Journal: :IEICE Transactions 2006
Nirmal Kumar Das Masahiro Shinozawa Norihisa Miyadai Tetsuki Taniguchi Yoshio Karasawa

This paper introduces a novel MIMO (Multiple Input Multiple Output) communication system having orthogonal dual polarization diversity branches. We have designed a dual polarized circular patch antenna which has two orthogonal polarization ports such as vertical polarization (V) and horizontal polarization (H) on its metal surface. This design makes it works as two independent antennas in multi...

2015
K. Chennakesava Reddy Malla Reddy

Increased data rates and reliability are the two key factors required to support emerging multimedia applications and new communications technologies. The two techniques used in high data rate transmission are orthogonal frequency division multiplexing (OFDM) and multiple-input multiple-output (MIMO) scheme. The OFDM is used to mitigate the problem of inter symbol interference (ISI) and provide...

2004
Sudharman K. Jayaweera

An energy-efficient virtual multiple-input multiple-output (MIMO) communication architecture based on V-BLAST receiver processing is proposed for energy-constrained, distributed wireless sensor networks. The proposed scheme does not require transmitter-side sensor cooperation unlike previously proposed virtual MIMO schemes for wireless sensor networks. In sensor networks with single-antenna dat...

2016
Jai-Eun Kim Ji-Won Kim Youngil Park Ki-Doo Kim

In this paper, we analyze the applicability of color-space-based, color-independent visual-MIMO for V2X. We aim to achieve a visual-MIMO scheme that can maintain the original color and brightness while performing seamless communication. We consider two scenarios of GCM based visual-MIMO for V2X. One is a multipath transmission using visual-MIMO networking and the other is multi-node V2X communi...

2012
Young-Ju Kim Hyung-Jun Kim

In this paper, we propose a novel codebook for multiple-input multiple-output (MIMO) Rician fading channels. While the most conventional codebooks are designed in Rayleigh fading channels, we design a hybrid codebook which combines discrete Fourier transform matrix-based codebook for MIMO Rayleigh fading channels and array matrix-based codebook for MIMO line-ofsight channels. Especially, a back...

Journal: :CoRR 2013
Rodrigo C. de Lamare

This article presents a tutorial on multiuser multiple-antenna wireless systems with a very large number of antennas, known as massive multi-input multi-output (MIMO) systems. Signal processing challenges and future trends in the area of massive MIMO systems are presented and key application scenarios are detailed. A linear algebra approach is considered for the description of the system and da...

2013
Rodrigo C. de Lamare

This article presents a tutorial on multiuser multiple-antenna wireless systems with a very large number of antennas, known as massive multi-input multi-output (MIMO) systems. Signal processing challenges and future trends in the area of massive MIMO systems are presented and key application scenarios are detailed. A linear algebra approach is considered for the description of the system and da...

2014
Sanket Agrawal Dilip Kumar Sharma Vijay Chauhan Rupesh Kumar Dutta

This paper addresses the joint design of transmit and receive antennas or linear processing for multicarrier MIMO channels under a variety of design criteria. Instead of considering each design criterion in a separate way, It is generalized that the existing results by developing an existing unified framework based on considering two families of objective functions that embraced most reasonable...

Journal: :CoRR 2012
Puripong Suthisopapan Kenta Kasai Anupap Meesomboon Virasit Imtawil

In this paper, we have investigated the application of non-binary LDPC codes to spatial multiplexing MIMO systems with a large number of low power antennas. We demonstrate that such large MIMO systems incorporating with low-complexity MMSE detector and non-binary LDPC codes can achieve low probability of bit error at near MIMO capacity. The new proposed non-binary LDPC coded system also perform...

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