Channel-Adaptive Detection Scheme Based on Threshold in MIMO-OFDM Systems

Yu, Shukun; Ahn, Jang-Kyun; Song, Hyoung‐Kyu

doi:10.1587/transinf.e97.d.1644

Cited by 7 publications

(2 citation statements)

References 6 publications

(4 reference statements)

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“…Therefore, the AMC scheme is one of the solutions that solve the performance degradation due to the fading channel effect. The AMC scheme provides more flexible reliability and throughput than existing schemes [2]. Figure 3 shows the system model of the AMC scheme.…”

Section: Adaptive Modulation and Coding For Fanet Communicationmentioning

confidence: 99%

Wireless Transmission System for the Improved Reliability in the Flying Ad-hoc Network

Kim¹,

Ro²,

Song³

2017

IJERA

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Unmanned aerial vehicle (UAV) has unlimited availability not only in war but in various fields such as reconnaissance, observation, exploration. The wireless communication system between UAVs is very important and is known as flying ad-hoc network (FANET). The reason is that the FANET for UAV transfers data such as the information on mission accomplishment, collision prevention, etc. Therefore, the FANETs require the robust and spectral efficient communication scheme in the fading channel. Due to the high-mobility of the UAVs, these channels are very dynamic and time varying channel. In a dynamic channel environment, the adaptive modulation and coding (AMC) scheme is necessary to provide a reliable communication. This paper provides the improved wireless communication scheme applied with the AMC scheme. The proposed scheme uses the modulation and coding according to the channel state information (CSI) in the FANETs. The receiver obtains the CSI by using the channel estimation and transmits the feedback information to the transmitter. And then, the transmitter confirms the channel conditions via the CSI and adaptively uses the modulation scheme and code rate according to the channel conditions. Because the proposed scheme provides the reliable wireless communication, it does not require unnecessary re-transmission.

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Section: Adaptive Modulation and Coding For Fanet Communicationmentioning

confidence: 99%

Wireless Transmission System for the Improved Reliability in the Flying Ad-hoc Network

Kim¹,

Ro²,

Song³

2017

IJERA

Self Cite

View full text Add to dashboard Cite

show abstract

“…As shown in Fig. 1, input data is demultiplexed into N data substreams [3]. So, M OFDM symbols which have cyclic prefix (CP) are denoted as…”

Section: System Modelmentioning

confidence: 99%

Reduced Complexity of QRD-M Detection Scheme in MIMO-OFDM Systems

Kim¹,

Ro²,

Song

2016

Advanced Science and Technology Letters

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In multiple input multiple output-orthogonal frequency division multiplexing (MIMO-OFDM) systems, several detection schemes have been developed for high error performance and low complexity. In several detection schemes, maximum likelihood (ML) and QRD-M have optimal error performance. However, these detection schemes have very high complexity. Thus, this paper proposes reduced complexity of QRD-M detection scheme in MIMO-OFDM systems. The proposed detection scheme has two stages, i.e. partial zero-forcing (ZF) and conventional QRD-M. The proposed detection scheme has higher error performance and lower complexity than the decision feedback equalizer (DFE).

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The Improved Performance of the Shadow Area User by Using the Relay in the Wireless Communication System

Giil¹,

Ko²,

Song

2016

Advanced Science and Technology Letters

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Abstract. Nowadays, wireless communication system is actively used in everyday life. The most important thing is the performance improvement. In the MIMO-OFDM system can provide multiplexing gain or diversity gain. These gains are obtained in proportion to the increase of the number of antennas. However, the use of the multiple antennas has the problems. Therefore, this paper proposes a cooperative system for improving of performance in the bad communication environment area.

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Channel-Adaptive Detection Scheme Based on Threshold in MIMO-OFDM Systems

Cited by 7 publications

References 6 publications

Wireless Transmission System for the Improved Reliability in the Flying Ad-hoc Network

Wireless Transmission System for the Improved Reliability in the Flying Ad-hoc Network

Reduced Complexity of QRD-M Detection Scheme in MIMO-OFDM Systems

The Improved Performance of the Shadow Area User by Using the Relay in the Wireless Communication System

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