The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Dalam makalah ini, skim peruntukan sumber radio yang cekap untuk sistem OFDMA dicadangkan, yang mengikuti dua langkah untuk menjaga trafik masa nyata yang dicirikan dengan kekangan kelewatan berbilang peringkat. Paket mendesak, yang mempunyai tarikh akhir yang hampir, dikeluarkan terlebih dahulu dalam langkah 1. Selepas itu, sumber saluran yang selebihnya diuruskan sedemikian rupa sehingga daya pemprosesan keseluruhan dimaksimumkan pada Langkah 2. Dalam kerja ini, kepelbagaian 2 dimensi ke atas berbilang sub-jalur dan berbilang pengguna dipertimbangkan bersama. Skim yang dicadangkan dibandingkan dengan skim sedia ada yang direka bentuk untuk trafik masa nyata seperti skim Penjadualan Eksponen (EXP), skim Kelewatan Berwajaran Terbesar yang Diubahsuai (M-LWDF) dan skim Round robin dari segi kebarangkalian dan daya pengeluaran paket. Keputusan berangka menunjukkan bahawa skim yang dicadangkan berprestasi jauh lebih baik daripada yang dinyatakan di atas dari segi kebarangkalian pembuangan paket, manakala lebih baik sedikit dari segi daya pemprosesan.
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Salinan
Sungho HWANG, Jeongsik PARK, Ho-Shin CHO, "Radio Resource Allocation for Real-Time Traffic with Multi-Level Delay Constraint in OFDMA System" in IEICE TRANSACTIONS on Communications,
vol. E93-B, no. 5, pp. 1224-1231, May 2010, doi: 10.1587/transcom.E93.B.1224.
Abstract: In this paper, an efficient radio resource allocation scheme for OFDMA systems is proposed, which follows two steps to take care of real-time traffic characterized with multi-level delay constraints. Urgent packets, those with imminent deadlines, are released first in step 1. After that the remaining channel resources are managed in such a way that overall throughput is maximized at Step 2. In this work, 2-dimensional diversity over multiple sub-bands and multiple users are jointly considered. The proposed scheme is compared with existing schemes designed for real-time traffic such as Exponential Scheduling (EXP) scheme, Modified Largest Weighted Delay First (M-LWDF) scheme, and Round robin scheme in terms of the packet discard probability and throughput. Numerical results show that the proposed scheme performs much better than the aforementioned ones in terms of the packet discard probability, while slightly better in terms of throughput.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E93.B.1224/_p
Salinan
@ARTICLE{e93-b_5_1224,
author={Sungho HWANG, Jeongsik PARK, Ho-Shin CHO, },
journal={IEICE TRANSACTIONS on Communications},
title={Radio Resource Allocation for Real-Time Traffic with Multi-Level Delay Constraint in OFDMA System},
year={2010},
volume={E93-B},
number={5},
pages={1224-1231},
abstract={In this paper, an efficient radio resource allocation scheme for OFDMA systems is proposed, which follows two steps to take care of real-time traffic characterized with multi-level delay constraints. Urgent packets, those with imminent deadlines, are released first in step 1. After that the remaining channel resources are managed in such a way that overall throughput is maximized at Step 2. In this work, 2-dimensional diversity over multiple sub-bands and multiple users are jointly considered. The proposed scheme is compared with existing schemes designed for real-time traffic such as Exponential Scheduling (EXP) scheme, Modified Largest Weighted Delay First (M-LWDF) scheme, and Round robin scheme in terms of the packet discard probability and throughput. Numerical results show that the proposed scheme performs much better than the aforementioned ones in terms of the packet discard probability, while slightly better in terms of throughput.},
keywords={},
doi={10.1587/transcom.E93.B.1224},
ISSN={1745-1345},
month={May},}
Salinan
TY - JOUR
TI - Radio Resource Allocation for Real-Time Traffic with Multi-Level Delay Constraint in OFDMA System
T2 - IEICE TRANSACTIONS on Communications
SP - 1224
EP - 1231
AU - Sungho HWANG
AU - Jeongsik PARK
AU - Ho-Shin CHO
PY - 2010
DO - 10.1587/transcom.E93.B.1224
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E93-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 2010
AB - In this paper, an efficient radio resource allocation scheme for OFDMA systems is proposed, which follows two steps to take care of real-time traffic characterized with multi-level delay constraints. Urgent packets, those with imminent deadlines, are released first in step 1. After that the remaining channel resources are managed in such a way that overall throughput is maximized at Step 2. In this work, 2-dimensional diversity over multiple sub-bands and multiple users are jointly considered. The proposed scheme is compared with existing schemes designed for real-time traffic such as Exponential Scheduling (EXP) scheme, Modified Largest Weighted Delay First (M-LWDF) scheme, and Round robin scheme in terms of the packet discard probability and throughput. Numerical results show that the proposed scheme performs much better than the aforementioned ones in terms of the packet discard probability, while slightly better in terms of throughput.
ER -