Comparison of FDR and HDR under adaptive modulation with finite-length queues

Taehoon Kwon; Youngju Kim; Daesik Hong

doi:10.1109/TVT.2011.2176152

Comparison of FDR and HDR under adaptive modulation with finite-length queues

Taehoon Kwon, Youngju Kim, Daesik Hong

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article

8 Citations (Scopus)

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	https://doi.org/10.1109/TVT.2011.2176152
Publication status	Published - 2012 Feb

All Science Journal Classification (ASJC) codes

Automotive Engineering
Aerospace Engineering
Electrical and Electronic Engineering
Applied Mathematics

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Kwon, T., Kim, Y., & Hong, D. (2012). Comparison of FDR and HDR under adaptive modulation with finite-length queues. IEEE Transactions on Vehicular Technology, 61(2), 838-843. [6095385]. https://doi.org/10.1109/TVT.2011.2176152

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