Rate-varying space-time coding scheme for multiple-input multiple-output fading channel with zero-forcing receiver

2016 ◽  
Vol 10 (6) ◽  
pp. 624-631
Author(s):  
Chao Wang ◽  
Zhaoyang Zhang
Keyword(s):  
Fading Channel ◽  
Multiple Input Multiple Output ◽  
Space Time ◽  
Zero Forcing ◽  
Space Time Coding ◽  
Coding Scheme ◽  
Multiple Input ◽  
Input Multiple Output ◽  
Time Coding

Joint Beamforming and Space-Time Coding for MIMO Channels

2009 ◽  
pp. 264-285
Author(s):  
Biljana Badic ◽  
Jinho Choi
Keyword(s):  
Smart Antenna ◽  
Multiple Input Multiple Output ◽  
Space Time ◽  
Diversity Gain ◽  
Mimo Channels ◽  
Space Time Coding ◽  
Joint Design ◽  
Multiple Input ◽  
Input Multiple Output ◽  
Time Coding

This chapter introduces joint beamforming (or precoding) and space-time coding for multiple input multiple output (MIMO) channels. First, we explain key ideas of beamforming and space- time coding and then we discuss the joint design of beamformer and space-time codes and its benefits. Beamforming techniques play a key role in smart antenna systems as they can provide various features, including spatially selective transmissions to increase the capacity and coverage increase. STC techniques can offer both coding gain and diversity gain over MIMO channels. Thus, joint beamforming and STC is a more practical approach to exploit both spatial correlation and diversity gain of MIMO channels. We believe that joint design will be actively employed in future standards for wireless communications.

scholarly journals Space-Time Coding: an Overview

2017 ◽  
Vol 2 (3) ◽  
pp. 212 ◽  
Author(s):  
Giuseppe Caire ◽  
Petros Elia ◽  
K. Raj Kumar
Keyword(s):  
Fading Channels ◽  
Multiple Input Multiple Output ◽  
Space Time ◽  
Code Design ◽  
Error Performance ◽  
Open Problems ◽  
Information Theoretic ◽  
Space Time Coding ◽  
Input Multiple Output ◽  
Time Coding

This work provides an overview of the fundamental aspects and of some recent advances in space-time coding (STC). Basic information theoretic results on Multiple-Input Multiple-Output (MIMO) fading channels, pertaining to capacity, diversity, and to the optimal Diversity Multiplexing Tradeoff (DMT), are reviewed. The code design for the quasi-static, outage limited, fading channel is recognized as the most challenging and innovative with respect to traditional “Gaussian” coding. Then, a survey of STC constructions is presented. This culminates with the description of families of codes that are optimal with respect to the DMT criterion and have error performance that is very close to the information theoretic limits. The paper concludes with some important recent topics, including open problems in STC design.

scholarly journals Enhancement of Twice Quasi Orthogonal Space Time Block Coded (QOSTBC) Performance System with Zero Forcing EVCM Decoder

2018 ◽  
Vol 218 ◽  
pp. 03009
Author(s):  
Desy Agustin ◽  
Nachwan Mufti Adriansyah ◽  
Muhsin
Keyword(s):  
Mimo Systems ◽  
Mimo System ◽  
High Reliability ◽  
Multiple Input Multiple Output ◽  
Low Complexity ◽  
Space Time ◽  
Zero Forcing ◽  
Receiver Diversity ◽  
Multiple Input ◽  
Input Multiple Output

In today’s modern telecommunications systems, makes the number of studies and development of multiple antennas and multiple-input multiple-output (MIMO) systems to achieve high reliability and low complexity. One attractive approach to improve that performance is using technique transmit diversity which is spacetime block coding and receiver diversity i.e. zero forcing EVCM (ZF EVCM). Although some earlier MIMO standards were develop some space-time codes like (O-STBC)and (Q-OSTBC) to provide high reliability but they are limited able to achieve orthogonality. In this research will be proposed a MIMO system scheme which is an improvement of QOSTBC that used a transmission diversity technique. This improvement from QOSTBC is Twice QOSTBC uses a provision in two codeword matrices to be sent are arranged diagonally so as to have higher levels of orthogonality. In this case Twice QOSTBC highly structured (4x1) can be replaced as an equivalent EVCM channel H. The proposed Twice-QOSTBC’s results outperform other QOSTBC techniques with a difference around 3 dB for single-input multi-input (MISO) input configuration at 10-6 BER and receiver ZF EVCM has a very similar structure as the code matrix S of the underlying Twice QSTBC which can eliminates the system complexity.

scholarly journals A Novel Modulation Scheme of 8x8 MIMO in Industry 4.0

2021 ◽  
Vol 23 (3) ◽  
pp. 1-10
Author(s):  
Rajashree Suryawanshi ◽  
P. Kavipriya ◽  
B.P. Patil
Keyword(s):  
Fading Channel ◽  
Industry 4.0 ◽  
Adaptive Modulation ◽  
Multiple Input Multiple Output ◽  
Modulation Scheme ◽  
Zero Forcing ◽  
Lte Advanced ◽  
Multiple Input ◽  
Qam Modulation ◽  
Input Multiple Output

A key component in the usage of Industry 4.0 arrangements is the up and coming age of system network, LTE/LTE advanced today, and 5G, later on. Industry 4.0 is conveying private LTE arranges today, as they trust it will give them an upper hand and a solid head start when 5G opens up. LTE uses multiple input multiple output (MIMO), a promising technique to accomplish the necessary data rate. This article presents consequences of 8x8 MIMO framework in fading channel utilizing V-BLAST by means of zero-forcing (ZF) with standard ZF. The relative investigation in the fading channel on account of symbol error proves V-BLAST by means of ZF has predominant execution than standard ZF finder. In addition to this, in order to support adaptive modulation, various M-QAM modulation schemes for these detectors are compared. This comparison shows 128-QAM performs superiorly to staying two. This investigation is carried out to help utilization of MIMO in LTE to support Industry 4.0.

Sign in / Sign up

Export Citation Format

Share Document