Abstract
To identify the optimal duplex mode and maximize the offered gain in the relay system, we compare the performances of half-duplex relay (HDR) and full-duplex relay (FDR). Finite-state Markov chain (FSMC) models are presented, showing the joint effects of finite-length queues and adaptive modulation (AM) under uncorrelated Rayleigh fading channels. Transmission efficiency, packet loss rate, and delay are derived and compared based on these models. According to our results, FDR is superior to HDR in the low-signal-to-noise ratio (SNR) region but loses its advantage as the SNR increases. When the size of the queue is large enough, FDR can be superior to HDR, even in the high-SNR region.
| Original language | English |
|---|---|
| Article number | 6095385 |
| Pages (from-to) | 838-843 |
| Number of pages | 6 |
| Journal | IEEE Transactions on Vehicular Technology |
| Volume | 61 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2012 Feb 1 |
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All Science Journal Classification (ASJC) codes
- Automotive Engineering
- Aerospace Engineering
- Computer Networks and Communications
- Electrical and Electronic Engineering
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Comparison of FDR and HDR under adaptive modulation with finite-length queues. / Kwon, Taehoon; Kim, Youngju; Hong, Daesik.
In: IEEE Transactions on Vehicular Technology, Vol. 61, No. 2, 6095385, 01.02.2012, p. 838-843.Research output: Contribution to journal › Article
TY - JOUR
T1 - Comparison of FDR and HDR under adaptive modulation with finite-length queues
AU - Kwon, Taehoon
AU - Kim, Youngju
AU - Hong, Daesik
PY - 2012/2/1
Y1 - 2012/2/1
N2 - To identify the optimal duplex mode and maximize the offered gain in the relay system, we compare the performances of half-duplex relay (HDR) and full-duplex relay (FDR). Finite-state Markov chain (FSMC) models are presented, showing the joint effects of finite-length queues and adaptive modulation (AM) under uncorrelated Rayleigh fading channels. Transmission efficiency, packet loss rate, and delay are derived and compared based on these models. According to our results, FDR is superior to HDR in the low-signal-to-noise ratio (SNR) region but loses its advantage as the SNR increases. When the size of the queue is large enough, FDR can be superior to HDR, even in the high-SNR region.
AB - To identify the optimal duplex mode and maximize the offered gain in the relay system, we compare the performances of half-duplex relay (HDR) and full-duplex relay (FDR). Finite-state Markov chain (FSMC) models are presented, showing the joint effects of finite-length queues and adaptive modulation (AM) under uncorrelated Rayleigh fading channels. Transmission efficiency, packet loss rate, and delay are derived and compared based on these models. According to our results, FDR is superior to HDR in the low-signal-to-noise ratio (SNR) region but loses its advantage as the SNR increases. When the size of the queue is large enough, FDR can be superior to HDR, even in the high-SNR region.
UR - http://www.scopus.com/inward/record.url?scp=84863156099&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84863156099&partnerID=8YFLogxK
U2 - 10.1109/TVT.2011.2176152
DO - 10.1109/TVT.2011.2176152
M3 - Article
VL - 61
SP - 838
EP - 843
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
SN - 0018-9545
IS - 2
M1 - 6095385
ER -