Full-Rate Space–Time Line Code for Four Receive Antennas

2007 ◽

Vol 06 (01) ◽

pp. 5-14 ◽

Cited By ~ 1

Author(s):

XIANGBIN YU ◽

GUANGGUO BI

Keyword(s):

Channel Coding ◽

Turbo Code ◽

Multiple Antennas ◽

Low Complexity ◽

Space Time ◽

System Throughput ◽

Time Block ◽

Coding Schemes ◽

Full Diversity ◽

Full Rate

Space-time block (STB) coding has been an effective transmit diversity technique for combating fading recently. In this paper, a full-rate and low-complexity STB coding scheme with complex orthogonal design for multiple antennas is proposed, and turbo code is employed as channel coding to improve the proposed code scheme performance further. Compared with full-diversity multiple antennas STB coding schemes, the proposed scheme can implement full data rate, partial diversity and a smaller complexity, and has more spatial redundancy information. Moreover, using the proposed scheme can form efficient spatial interleaving, thus performance loss due to partial diversity is effectively compensated by the concatenation of turbo coding. Simulation results show that on the condition of the same system throughput and concatenation of turbo code, the proposed scheme has lower bit error rate (BER) than those low-rate and full-diversity multiple antennas STB coding schemes.

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Multiuser Space–Time Line Code With Transmit Antenna Selection

IEEE Access ◽

10.1109/access.2020.2987068 ◽

2020 ◽

Vol 8 ◽

pp. 71930-71939

Author(s):

Jingon Joung ◽

Jihoon Choi

Keyword(s):

Antenna Selection ◽

Space Time ◽

Transmit Antenna Selection ◽

Time Line

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Full Rate L2-Orthogonal Space-Time CPM for Three Antennas

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference ◽

10.1109/glocom.2008.ecp.698 ◽

2008 ◽

Cited By ~ 3

Author(s):

Matthias Hesse ◽

Jerome Lebrun ◽

Luc Deneire

Keyword(s):

Space Time ◽

Orthogonal Space ◽

Full Rate

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Frame Structure Design for Vehicular-to-Roadside Unit Communications Using Space–Time Line Code Under Time-Varying Channels

IEEE Systems Journal ◽

10.1109/jsyst.2020.3011027 ◽

2020 ◽

pp. 1-4

Author(s):

Heejung Yu ◽

Jingon Joung

Keyword(s):

Space Time ◽

Structure Design ◽

Frame Structure ◽

Time Varying ◽

Time Line ◽

Roadside Unit ◽

Time Varying Channels

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Performance Evaluation of Full Diversity QOSTBC MIMO Systems with Multiple Receive Antenna

International Journal of Grid and High Performance Computing ◽

10.4018/ijghpc.2011100103 ◽

2011 ◽

Vol 3 (4) ◽

pp. 29-38

Author(s):

Hardip K. Shah ◽

Tejal N. Parmar ◽

Nikhil Kothari ◽

K. S. Dasgupt

Keyword(s):

Communication Systems ◽

Mimo Systems ◽

Multipath Fading ◽

Block Codes ◽

Space Time ◽

Least Square ◽

Time Block ◽

Full Diversity ◽

Constellation Rotation ◽

Full Rate

Multipath fading is inherent in wireless communication systems. Diversity is the technique which takes advantage of multipath to mitigate the effect of fading and increase signal strength. Space Time Block codes (STBC) are used in MIMO systems to improve the performance by maximizing transmit and/or receive diversity. Among different schemes based on STBC, Quasi Orthogonal Space Time Block Code (QOSTBC) is able to achieve full rate transmission for more than two transmit antennas. Constellation Rotation QOSTBC (CR-QOSTBC) achieves full diversity and improves performance further along with full rate, to overcome the limitation of QOSTBC, which is unable to maintain orthogonality amongst the codes transmitted by different antennas. Higher diversity can be achieved by increasing uncorrelated paths between transmitter and receivers using higher number of receive antennas. This paper examines improvement in BER with reference to a number of receive antennas. Simulations were carried out under ideal as well as realistic environments, using least square technique with four antennas at transmitter side and variable receive antennas. Results of simulations presented in this paper indicate performance improvement of CR-QOSTBC over QOSTBC in flat fading channel environment. Simulation results also show performance degradation in BER when channel is estimated at the receiver.

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Artificial Noise Injection and Its Power Loading Methods for Secure Space-Time Line Coded Systems

Entropy ◽

10.3390/e21050515 ◽

2019 ◽

Vol 21 (5) ◽

pp. 515 ◽

Cited By ~ 5

Author(s):

Jingon Joung ◽

Jihoon Choi ◽

Bang Chul Jung ◽

Sungwook Yu

Keyword(s):

Control Method ◽

Space Time ◽

Main Channel ◽

Artificial Noise ◽

Secrecy Rate ◽

Time Line ◽

Optimal Power ◽

Power Loading ◽

Loading Methods ◽

Coded Systems

In this paper, we consider a 2 × 2 space-time line coded (STLC) system having two-transmit and two-receive antennas. To improve the secrecy rate of the STLC system, in which an illegitimate receiver eavesdrops the information delivered from the STLC transmitter to the STLC receiver, we propose an artificial noise (AN) injection method. By exploiting the STLC structure, a novel AN for the STLC is designed and its optimal power loading factor is derived. Numerical results verify that the proposed secure STLC systems with the designed AN injection and the power control method can significantly improve the secrecy rate compared to the conventional STLC systems. It is observed that the proposed method is more effective if there is a significant gap between the main-channel and the eavesdropper-channel gains.

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