Results 11 to 20 of about 15,939 (189)
Broadband MIMO-OFDM wireless communications [PDF]
Proceedings of the IEEE, 2004 Orthogonal frequency division multiplexing (OFDM) is a popular method for high data rate wireless transmission. OFDM may be combined with antenna arrays at the transmitter and receiver to increase the diversity gain and/or to enhance the system capacity on time-varying and frequency-selective channels, resulting in a multiple-input multiple-output ...
G.L. Stuber +5 more
openaire +1 more source
Implementasi Sistem Komunikasi Nirkabel OFDM Berbasis Software Defined Radio (SDR)
Jurnal Nasional Teknik Elektro dan Teknologi Informasi, 2018 Nowadays, wireless communication technology is developing rapidly. However, this technology still has some weaknesses, e.g. large bandwidth requirement and multipath fading. To overcome these weaknesses, MIMO OFDM technique is needed.
Ida Anisah +3 more
doaj +1 more source
Pedestrians effects on indoor MIMO-OFDM channel capacity [PDF]
, 2009 Temporal variations caused by pedestrian movement can significantly affect the channel capacity of indoor MIMOOFDM wireless systems. This paper compares systematic measurements of MIMO-OFDM channel capacity in presence of pedestrians with predicted MIMO ...
Das Gupta, Jishu, Ziri-Castro, Karla
core +2 more sources
Duality of antennas and subcarriers in massive MIMO-OFDM downlink system [PDF]
, 2015 Massive multiple-input-multiple-output (MIMO) can significantly outperform conventional MIMO in terms of spectrum efficiency and link reliability. For massive MIMO, there are still theoretical and practical issues that have to be addressed.
Bannour, Ahmed, Sun, Yichuang
core +2 more sources
Bootstrap frequency equalisation for MIMO wireless systems [PDF]
, 2003 The paper reports on a new class of equalisation/detection for wideband multiple input-multiple output (MIMO) communications systems. The proposed scheme is somewhat akin to a multi-carrier MIMO system, and more precisely, builds upon a single carrier ...
Fletcher, PN +4 more
core +2 more sources
Effect of pedestrian movement on MIMO-OFDM channel capacity in an indoor environment [PDF]
, 2009 Effects of pedestrian movement on multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) channel capacity have been investigated using experiment and simulation. The experiment was conducted at 5.2 GHz by a MIMO-OFDM packet
Das Gupta, Jishu +2 more
core +2 more sources
MIMO-OFDM Based Energy Harvesting Cooperative Communications Using Coalitional Game Algorithm [PDF]
, 2017 This document is the Accepted Manuscript version. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or ...
Bannour, Ahmed +2 more
core +2 more sources
Channel Estimation for MIMO-OFDM Systems
Indian Journal of Science and Technology, 2015 Channel estimation is a very important process in the operation of MIMO-OFDM systems, as it is vital for accurately estimating the Channel Impulse Response (CIR) of the channel under various conditions. As such, it is useful to have a Simulink simulation to model the behavior of the channel estimation process in a MIMO-OFDM system, in order to study ...
Shahid Manzoor +2 more
openaire +1 more source
Research of MIMO-OFDM Model [PDF]
Advances in Intelligent Systems Research, 2015 OFDM (Orthogonal Frequency Division Multiplex) technique is one of the promising trends of the new generation wireless telecommunication. It can be combined with MIMO (Multiple Input Multiple Output) technique. The MIMO-OFDM system can improve the performance and the capacity of the wireless telecommunication, suppress co-channel interference and ...
Yaochun Li +4 more
openaire +1 more source
Performance Comparison of DWT Based MIMO OFDM and FFT Based MIMO OFDM
Procedia Computer Science, 2015 AbstractMultiple Input Multiple Output (MIMO) and Orthogonal Frequency Division Multiplexing (OFDM) are two combined technologies to provide the spectral efficiency and high data rate required for 4G wireless systems. Discrete Wavelet Transform (DWT) is presented as an alternative for the Fast Fourier Transform FFT since there is no necessity for ...
Bouhlel, Asma +2 more
openaire +1 more source