1. NCCU Academic Hub
  2. 學術產出
  3. 資訊學院
  4. 期刊論文
  5. Item

學術產出-期刊論文

文章檢視/開啟

書目匯出

Google ScholarTM

政大圖書館

引文資訊

TAIR相關學術產出

題名 Qos-Constraint Resource Allocation Scheduler for LTE Network
作者 Jang, Hung-Chin;Lee, Yun-Jun
張宏慶
貢獻者 資科系
日期 2014
上傳時間 11-四月-2016 14:39:45 (UTC+8)
摘要 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.
關聯 International Journal of Wireless Networks and Broadband Technologies, 4(1), 1-15
資料類型 article
DOI http://dx.doi.org/10.4018/ijwnbt.2015010101
dc.contributor 資科系
dc.creator (作者) Jang, Hung-Chin;Lee, Yun-Jun
dc.creator (作者) 張宏慶zh_TW
dc.date (日期) 2014
dc.date.accessioned 11-四月-2016 14:39:45 (UTC+8)-
dc.date.available 11-四月-2016 14:39:45 (UTC+8)-
dc.date.issued (上傳時間) 11-四月-2016 14:39:45 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/84105-
dc.description.abstract (摘要) 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.
dc.format.extent 167 bytes-
dc.format.mimetype text/html-
dc.relation (關聯) International Journal of Wireless Networks and Broadband Technologies, 4(1), 1-15
dc.title (題名) Qos-Constraint Resource Allocation Scheduler for LTE Network
dc.type (資料類型) article
dc.identifier.doi (DOI) 10.4018/ijwnbt.2015010101
dc.doi.uri (DOI) http://dx.doi.org/10.4018/ijwnbt.2015010101