Results 51 to 60 of about 122,418 (183)
, 2016 In this paper, we present a new multi-antenna modulation scheme, termed as {\em space-time index modulation (STIM)}. In STIM, information bits are conveyed through antenna indexing in the spatial domain, slot indexing in the time domain, and $M$-ary ...
Chockalingam, A. +2 more
core +1 more source
Spatial Modulation for More Spatial Multiplexing: RF-Chain-Limited Generalized Spatial Modulation Aided MM-Wave MIMO With Hybrid Precoding [PDF]
IEEE Transactions on Communications, 2018 The application of hybrid precoding in millimeter wave (mmWave) multiple-input multiple-output (MIMO) systems has been proved effective for reducing the number of radio frequency (RF) chains. However, the maximum number of independent data streams is conventionally restricted by the number of RF chains, which leads to limiting the spatial multiplexing ...
Longzhuang He, Jintao Wang, Jian Song
openaire +2 more sources
Generation of axially modulated plasma waveguides using a spatial light modulator
Optics Letters, 2016 We demonstrate the generation of axially modulated plasma waveguides using spatially patterned high-energy laser pulses. A spatial light modulator (SLM) imposes transverse phase front modulations on a low-energy (10 mJ) laser pulse which is interferometrically combined with a high-energy (130-450 mJ) pulse, sculpting its intensity profile. This enables
G A, Hine +5 more
openaire +2 more sources
Improved QRD-M Detection Algorithm for Generalized Spatial Modulation Scheme
International Journal of Antennas and Propagation, 2017 Generalized spatial modulation (GSM) is a spectral and energy efficient multiple-input multiple-output (MIMO) transmission scheme. It will lead to imperfect detection performance with relatively high computational complexity by directly applying the ...
Xiaorong Jing +3 more
doaj +1 more source
Precoding Aided Generalized Spatial Modulation With an Iterative Greedy Algorithm
IEEE Access, 2018 This paper divides antennas at the transmitter into several transmit antenna groups (TAGs) and extends the generalized spatial modulation (GSM) idea to a new precoding-aided multiple-input multiple-output system, which is referred to as precoding-aided ...
Yuwen Cao +2 more
doaj +1 more source
A universal space-time architecture for multiple-antenna aided systems
, 2012 In this tutorial, we first review the family of conventional multiple-antenna techniques, and then we provide a general overview of the recent concept of the powerful Multiple-Input Multiple-Output (MIMO) family based on a universal Space-Time Shift ...
Chen, Sheng +2 more
core +1 more source
Generalized Quaternary Quasi-Orthogonal Sequences Spatial Modulation
The Journal of Korean Institute of Communications and Information Sciences, 2016 So called quaternary quasi-orthogonal sequence spatial modulation (Q-QOS-SM) has been presented with an advantage of improved throughputs compared to the conventional SM and generalized spatial modulation (GSM) by virtue of a larger set size of QOSs and its minimized correlation value between these QOSs.
Yulong Shang, Hojun Kim, Taejin Jung
openaire +2 more sources
Intelligent Transmit Antenna Selection Schemes for High-Rate Fully Generalized Spatial Modulation
Future Internet, 2023 The sixth-generation (6G) network is supposed to transmit significantly more data at much quicker rates than existing networks while meeting severe energy efficiency (EE) targets.
Hindavi Kishor Jadhav +5 more
doaj +1 more source
Optimized Design of Distributed Generalized Reed-Solomon Coded Generalized Spatial Modulation [PDF]
RadioengineeringTo meet the need of modern society for more reliable and efficient communications, this paper applies the generalized spatial modulation (GSM) technique in the distributed generalized Reed-Solomon (GRS) coding to propose a novel distributed GRS coded GSM
C. L. Zhao, F. F. Yang, H. J. Xu
doaj
Generalized Spatial Modulation With Transmit Antenna Grouping for Massive MIMO
IEEE Access, 2017 In this paper, we propose an innovative generalized spatial modulation (GSM) scheme namely grouping GSM (gGSM) to improve the system performance against the high channel correlation in massive MIMO systems.
Weilin Qu +3 more
doaj +1 more source