Results 21 to 30 of about 65,120 (254)
IEEE Access, 2017 We investigate the application of non-orthogonal multiple access (NOMA) with successive interference cancellation (SIC) in downlink multiuser multiple-input multiple-output (MIMO) cellular systems, where the total number of receive antennas at user ...
MD Shipon Ali +2 more
doaj +1 more source
Spatial data stream multiplexing scheme for high-throughput WLANs [PDF]
, 2008 A novel scheme using spatial data stream multiplexing (SDSM) in the upcoming multiple-input multipleoutput (MIMO)-based IEEE 802.11n physical layer is proposed.
Gravalos, AG +3 more
core +1 more source
Scaling up MIMO: Opportunities and Challenges with Very Large Arrays [PDF]
, 2012 This paper surveys recent advances in the area of very large MIMO systems. With very large MIMO, we think of systems that use antenna arrays with an order of magnitude more elements than in systems being built today, say a hundred antennas or more ...
Buon Kiong Lau +19 more
core +2 more sources
A Technique for MIMO Antenna Design With Flexible Element Number and Pattern Diversity
IEEE Access, 2019 This paper presents a new technique for designing multiple-input multiple-output (MIMO) antennas having pattern diversity. Massive MIMO is expected to form a part of 5G communications and will require antennas having a very large number of elements ...
Yasin Kabiri +3 more
doaj +1 more source
Capacity Analysis and Data Detection of OvTDM-MIMO System
IEEE Access, 2023 It is well known that the channel capacity of traditional MIMO systems is positively correlated with the number of antennas, so MIMO systems usually use more antennas to meet higher system capacity requirements, which is increasingly conflicting with the
Yue Hu
doaj +1 more source
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
Energy efficiency-spectral efficiency trade-off of transmit antenna selection [PDF]
, 2014 We investigate the energy efficiency-spectral efficiency (EE-SE) trade-off of transmit antenna selection/maximum ratio combining (TAS) scheme. A realistic power consumption model (PCM) is considered, and it is shown that using TAS can provide significant
Brante, Glauber +4 more
core +1 more source
AEU - International Journal of Electronics and Communications, 2018 In this paper, a super-wideband (SWB) printed monopole antenna has been designed and manufactured. The measured frequency band in terms of reflection coefficient is from 3.1 to 20 GHz under a -10 dB criteria, thanks to the inclusion of a taper impedance adapter.
Ahmed Salih, Bazil Taha +3 more
openaire +1 more source
IEEE Access, 2021 In this paper, an effective method for developing a multi-feed multiple-input multiple-output (MIMO) antenna system using the metal rims of a mobile phone without any structural interruption on the long edge frames is proposed.
Zhongwei Ji +7 more
doaj +1 more source
Diversity-Multiplexing Gain Trade-off of a MIMO System with Relays [PDF]
, 2007 We find the diversity-multiplexing gain trade-off of a multiple-antenna (MIMO) system with M transmit antennas, N receive antennas, R relay nodes, and with independent Rayleigh fading, in which the relays apply a distributed space-time code.
Hassibi, Babak, Rao, Chaitanya
core +1 more source