政大機構典藏-National Chengchi University Institutional Repository(NCCUR):Item 140.119/84105

English | 正體中文 | 简体中文 | Post-Print筆數 : 27 | Items with full text/Total items : 109950/140901 (78%)
Visitors : 46017875 Online Users : 677

RC Version 6.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.

Home ‧ Login ‧ Upload ‧ Help ‧ About ‧ Administer

政大典藏 > College of Informatics > Department of Computer Science > Periodical Articles > Item 140.119/84105

Please use this identifier to cite or link to this item: https://nccur.lib.nccu.edu.tw/handle/140.119/84105

Title:	Qos-Constraint Resource Allocation Scheduler for LTE Network
Authors:	Jang, Hung-Chin;Lee, Yun-Jun 張宏慶
Contributors:	資科系
Date:	2014
Issue Date:	2016-04-11 14:39:45 (UTC+8)
Abstract:	The goal of LTE (Long Term Evolution) is to provide high data transmission rate, scalable bandwidth, low latency, high-mobility, etc. LTE employs OFDM (Orthogonal Frequency Division Multiplexing) and SC-FDMA (Single Carrier - Frequency Division Multiple Access) for downlink and uplink data transmission, respectively. As to SC-FDMA, there are two constraints in doing resource allocation. First, the allocated resource blocks (RBs) should be contiguous. Second, those of the allocated RBs are forced to use the same modulation technique. The aim of this research is to propose a QoS-constraint resource allocation scheduling to enhance data transmission for uplink SC-FDMA. The proposed scheduling is a three-stage approach. In the first stage, it uses a time domain scheduler to differentiate user equipment (UE) services according to their distinct QoS service requirements. In the second stage, it uses a frequency domain scheduler to prioritize UE services based on channel quality. In the third stage, it limits the number of times of modulation downgrade of RBs allocation in order to enhance system throughput. In the simulations, the proposed method is compared to fixed sub-carrier dynamic resource allocation method and adaptive dynamic sub-carrier resource allocation method. Simulation results show that the proposed method outperforms the other two methods in terms of throughput, transmission delay, packet loss ratio, and RB utilization.
Relation:	International Journal of Wireless Networks and Broadband Technologies, 4(1), 1-15
Data Type:	article
DOI link:	http://dx.doi.org/10.4018/ijwnbt.2015010101
DOI:	10.4018/ijwnbt.2015010101
Appears in Collections:	[Department of Computer Science ] Periodical Articles

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML2	885	View/Open

社群 sharing

著作權政策宣告 Copyright Announcement

1.本網站之數位內容為國立政治大學所收錄之機構典藏，無償提供學術研究與公眾教育等公益性使用，惟仍請適度，合理使用本網站之內容，以尊重著作權人之權益。商業上之利用，則請先取得著作權人之授權。
The digital content of this website is part of National Chengchi University Institutional Repository. It provides free access to academic research and public education for non-commercial use. Please utilize it in a proper and reasonable manner and respect the rights of copyright owners. For commercial use, please obtain authorization from the copyright owner in advance.

2.本網站之製作，已盡力防止侵害著作權人之權益，如仍發現本網站之數位內容有侵害著作權人權益情事者，請權利人通知本網站維護人員(nccur@nccu.edu.tw)，維護人員將立即採取移除該數位著作等補救措施。
NCCU Institutional Repository is made to protect the interests of copyright owners. If you believe that any material on the website infringes copyright, please contact our staff(nccur@nccu.edu.tw). We will remove the work from the repository and investigate your claim.

Loading...