SIRA: SNR-Aware Intra-Frame Rate Adaptation
- Authors
- Lee, Okhwan; Kim, Jihoon; Lim, Jongtae; Choi, Sunghyun
- Issue Date
- Jan-2015
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- A-MPDU; IEEE 802.11n; mobility; rate control
- Citation
- IEEE COMMUNICATIONS LETTERS, v.19, no.1, pp.90 - 93
- Journal Title
- IEEE COMMUNICATIONS LETTERS
- Volume
- 19
- Number
- 1
- Start Page
- 90
- End Page
- 93
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/13705
- DOI
- 10.1109/LCOMM.2014.2371039
- ISSN
- 1089-7798
- Abstract
- An intra-frame rate control algorithm (Intra-RCA), called SNR-aware Intra-frame Rate Adaption (SIRA), is proposed to enhance the system performance of WiFi in fast time-varying environments. Widely used inter-frame rate control algorithms (Inter-RCA), which select the physical layer (PHY) rate of each frame based on the time averaged frame loss rate and the signal strength statistics, perform poorly for a long aggregate MAC protocol data unit (A-MPDU) due to the channel variation in mobile environments. Unlike the previous approaches, SIRA adapts the PHY rate on intra-frame basis, i.e., the PHY rate is updated in the middle of a frame according to user mobility. The performance of the proposed scheme is also evaluated by a trace-driven link level simulator employing the collected channel traces from real measurements. The simulation results show that SIRA outperforms the standalone Inter-RCA in all tested traces.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > School of Electronic & Electrical Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.