Results 91 to 100 of about 2,916 (209)

ANALISIS PERFORMANSI STBC MIMO-OFDM PADA KOMUNIKASI WIRELESS (PERFORMANCE ANALYSIS OF STBC MIMO-OFDM IN WIRELESS COMMUNICATION) [PDF]

open access: yes, 2006
ABSTRAKSI: Pada perkembangan komunikasi wireless yang membutuhkan kebutuhan bandwidth yang lebih lebar untuk komunikasi wireless. Fenomena multipath fading merupakan salah satu ciri utama pada sistem komunikasi wireless.
NUR WATHONI KHOLID
core  

LSTM with Short-Term Bias Compensation to Determine Trading Strategy under Black Swan Events of Taiwan ETF50 Stock

open access: yesApplied Sciences
This paper uses Long Short-Term Memory (LSTM) networks to predict the stock prices of the Yuanta Taiwan Top 50 ETF (ETF50). To improve the accuracy of the model’s predictions, a calibration procedure called “Short-Term Bias Compensation” (STBC) is ...
Ray-I Chang   +3 more
doaj   +1 more source

Semi-blind channel estimation for precoded STBC

open access: yes, 2008
Most existing techniques for space time block coding (STBC) systems have assumed full decorrelated radio channels which may not be the case in practice.
Systems Over Correlated   +2 more
core  

RESEARCH AND ANALYSIS OF STBC-IDMA SYSTEMS OVER DIFFERENT CHANNELS [PDF]

open access: yes, 2009
IDMA系统作为第四代移动通信的关键技术之一,有许多自己的优势。而由于空时码能够有效的抵抗衰落,将空时码与IDMA技术相结合的STBC-IDMA系统不仅能够在准静态瑞利衰落信道下比原始IDMA技术获得极大的性能增益,而且可以比现行的IDM_ST系统、MIMO-STBC-IDMA系统节省至少一半数量的交织器,并且性能还优于IDM_ST系统,复杂度更低,降低上行链路用户终端的成本,有很强的现实可行性。 然而STBC-IDMA系统的性能仿真只局限在准静态瑞利衰落信道(平坦衰落信道)下 ...
李伟权
core  

Application of maximum rank distance codes in designing of STBC-OFDM system for next-generation wireless communications

open access: yesDigital Communications and Networks
Space-Time Block Coded (STBC) Orthogonal Frequency Division Multiplexing (OFDM) satisfies higher data-rate requirements while maintaining signal quality in a multipath fading channel.
Arslan Khalid, Prapun Suksompong
doaj   +1 more source

Turbo Detection of Symbol-Based Non-Binary LDPC-Coded Space-time Signals using Sphere Packing Modulation

open access: yes, 2005
A recently proposed space-time signal construction method that combines orthogonal design with sphere packing, referred to here as (STBC-SP), has shown useful performance improvements over Alamouti’s conventional orthogonal design.
Alamri, O.R.   +3 more
core  

Concatenated space-time block coding with asymmetric MPSK TCM

open access: yesTongxin xuebao, 2010
The field of concatenated space-time block coding (inner) with trellis coded modulation (outer) has recently attracted interest as a means of jointly considering the error correction coding gain and diversity gain possible without bandwidth expansion and
AO Jun1   +3 more
doaj   +2 more sources

Linear Diversity-Embedding STBC: Design Issues and Applications

open access: yes
We design a novel class of space-time codes, called linear diversity-embedding space-time block codes (LDE-STBC) where a high-rate STBC is linearly superimposed on a high-diversity STBC without requiring channel knowledge at the transmitter.
Al-Dhahir, N.   +4 more
core   +1 more source

Genetically Optimized Pre coders Transceiver Design for Double STBC System [PDF]

open access: yes, 2014
Wireless communications depends on multiple-input-multiple-output (MIMO) techniques for high data rates. Feedback of channel information can be used in pre-coding to use the strongest channel mode and improve MIMO performance.
Kumar, B.H.K.Bhagat   +2 more
core  

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