Fading-Aware Packet Scheduling Algorithm in OFDM-MIMO Systems. (24th May 2007)
- Record Type:
- Journal Article
- Title:
- Fading-Aware Packet Scheduling Algorithm in OFDM-MIMO Systems. (24th May 2007)
- Main Title:
- Fading-Aware Packet Scheduling Algorithm in OFDM-MIMO Systems
- Authors:
- Diao Diao, Zhifeng Zhifeng
Li Li, Victor O. K. Victor O. K. - Other Names:
- Petropulu Petropulu Athina Athina Academic Editor.
- Abstract:
- Abstract : To maximize system throughput and guarantee the quality of service (QoS) of multimedia traffic in orthogonal frequency division multiplexing (OFDM) systems with smart antennas, a new packet scheduler is introduced to consider QoS requirements, packet location in the frame, and modulation level. In the frequency domain, several consecutive subchannels are grouped as a frequency subband. Each subband in a frame can be used to transmit a packet, and can be reused by several users in a multiple-input and multiple-output (MIMO) systems. In this paper, we consider the adaptive packet scheduling algorithms design for OFDM/SDMA system. Based on the BER requirements, all traffics are divided into classes. Based on such classification, a dynamic packet scheduler is proposed, which greatly improves system capacity, and can guarantee QoS requirements. Adaptive modulation is also applied in the scheduler. Then, the complexity analysis of these algorithms is given. When compared with existing schedulers, our scheduler achieves higher system capacity with much reduced complexity. The use of adaptive modulation further enhances the system capacity. Simulation results demonstrate that as the traffic load increases, the new scheduler has much better performance in system throughput, average delay, and packet loss rate.
- Is Part Of:
- EURASIP journal on advances in signal processing. Volume 2007(2007)
- Journal:
- EURASIP journal on advances in signal processing
- Issue:
- Volume 2007(2007)
- Issue Display:
- Volume 2007, Issue 2007 (2007)
- Year:
- 2007
- Volume:
- 2007
- Issue:
- 2007
- Issue Sort Value:
- 2007-2007-2007-0000
- Page Start:
- Page End:
- Publication Date:
- 2007-05-24
- Subjects:
- Signal processing -- Periodicals
Traitement du signal
Signal processing
Periodicals
621.3822 - Journal URLs:
- https://asp-eurasipjournals.springeropen.com/ ↗
http://link.springer.com/ ↗
http://www.hindawi.com/journals/asp/ ↗ - DOI:
- 10.1155/2007/95917 ↗
- Languages:
- English
- ISSNs:
- 1687-6172
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 26960.xml