Results 21 to 30 of about 892,691 (234)

Quantum Codes in Classical Communication: A Space-Time Block Code From Quantum Error Correction

open access: yesIEEE Open Journal of the Communications Society, 2021
We propose a general framework for noncoherent communication using techniques from the field of quantum error correction (QEC). We first propose an approach for analyzing a classical communication channel as a quantum channel, and develop an extension of
Travis C. Cuvelier   +3 more
doaj   +1 more source

OFDM based Distributed Space Time Coding for Asynchronous Relay Networks [PDF]

open access: yes, 2008
Recently Li and Xia have proposed a transmission scheme for wireless relay networks based on the Alamouti space time code and orthogonal frequency division multiplexing to combat the effect of timing errors at the relay nodes. This transmission scheme is
Rajan, B. Sundar, Rajan, G. Susinder
core   +3 more sources

Performance Analysis of Space-Time Block Codes in Flat Fading MIMO Channels with Offsets

open access: yesEURASIP Journal on Wireless Communications and Networking, 2007
We consider the effect of imperfect carrier offset compensation on the performance of space-time block codes. The symbol error rate (SER) for orthogonal space-time block code (OSTBC) is derived here by taking into account the carrier offset and the ...
Manav R. Bhatnagar   +2 more
doaj   +2 more sources

Distributed Cooperative Relaying Based on Space-Time Block Code: System Description and Measurement Campaign

open access: yesIEEE Access, 2021
In cooperative relaying, intermediate stations are required to enhance the end-to-end transmission performance. The performance of the cooperative relaying scheme has been investigated theoretically and via computer simulations.
Hidekazu Murata   +2 more
doaj   +1 more source

Differential space-time block-coded OFDMA for frequency-selective fading channels [PDF]

open access: yes, 2003
Combining differential Alamouti space-time block code (DASTBC) with orthogonal frequency-division multiple access (OFDMA), this paper introduces a multiuser/multirate transmission scheme, which allows full-rate and full-diversity noncoherent ...
Cai, W, Chen, Z, Ni, Q, Zhu, G
core   +1 more source

System Performance of Concatenated STBC and Block Turbo Codes in Dispersive Fading Channels

open access: yesEURASIP Journal on Advances in Signal Processing, 2005
A new scheme of concatenating the block turbo code (BTC) with the space-time block code (STBC) for an OFDM system in dispersive fading channels is investigated in this paper.
Kam Tai Chan, Yinggang Du
doaj   +1 more source

A Fast Decodable Full-Rate STBC with High Coding Gain for 4x2 MIMO Systems [PDF]

open access: yes, 2013
In this work, a new fast-decodable space-time block code (STBC) is proposed. The code is full-rate and full-diversity for 4x2 multiple-input multiple-output (MIMO) transmission.
Crussière, Matthieu   +3 more
core   +4 more sources

A Rotated Quasi-Orthogonal Space-Time Block Code for Asynchronous Cooperative Diversity

open access: yesEntropy, 2012
The rotated quasi-orthogonal space-time block code (RQSTBC) for asynchronous cooperative diversity is proposed in this paper. The source selects half of the symbols from a signal constellation set and the other half of them from that constellation ...
Fu-Kui Yao, Liang-Fang Ni, Li Zhang
doaj   +1 more source

FULL-RATE SPACE-TIME BLOCK CODE FOR FOUR TRANSMIT ANTENNAS WITH LINEAR DECODING

open access: yesJordanian Journal of Computers and Information Technology, 2020
This paper proposes a new full-rate space-time block code for MIMO systems at four transmit antennas, which aims at minimizing the bit error rate with low-complexity decoding using ZF and MMSE linear detection techniques in Rayleigh fading channels ...
Younes Djemamar   +2 more
doaj   +1 more source

Physical Layer Security Enhancement of Space-Time Block Code Using Channel Prediction for Antenna Selection [PDF]

open access: yesJisuanji gongcheng, 2020
Aiming at Transmit Antenna Selection with Delay(TASD)/Orthogonal Space-Time Block Code(OSTBC) wireless communication system,this paper proposes a system physical layer security enhancement scheme based on the Minimum Mean Square Error(MMSE) channel ...
QIAN Hui, LI Guangqiu, WANG Lingbo, CAI Jianhui
doaj   +1 more source

Home - About - Disclaimer - Privacy