Issue No. 03 - March (2013 vol. 12)
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/TMC.2012.34
Jia-Shi Lin , Dept. of Electr. & Comput. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Kai-Ten Feng , Dept. of Electr. & Comput. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Yu-Zhi Huang , Holtek Semicond. Incorporation, Hsinchu, Taiwan
Li-Chun Wang , Dept. of Electr. & Comput. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
The design of wireless local area networks (WLANs) with enhanced throughput performance have attracted significant amounts of attention in recent years. Based on the IEEE 802.11n standard, frame aggregation is considered one of the major factors to improve the system performance of WLANs from the medium access control (MAC) perspective. In order to fulfill the requirements of high throughput performance, feasible design of automatic repeat request (ARQ) mechanisms becomes important for providing reliable data transmission. In this paper, two MAC-defined ARQ protocols are proposed to consider the effect from frame aggregation for the enhancement of network throughput. An aggregated selective repeat ARQ (ASR-ARQ) scheme is proposed which incorporates the selective repeat ARQ scheme with the consideration of frame aggregation. On the other hand, for worse channel quality, the aggregated hybrid ARQ (AH-ARQ) mechanism is proposed to further enhance the throughput performance by adopting the Reed-Solomon (RS) block code as forward error correction (FEC) scheme. Novel analytical models for both the ASR-ARQ and AH-ARQ protocols are established with the consideration of interfering wireless stations. Simulations are conducted to validate and compare the proposed ARQ mechanisms based on the service time distribution and system throughput. Numerical evaluations show that the proposed AH-ARQ protocol can outperform the other schemes under worse channel condition; while the ASR-ARQ scheme is superior to the other mechanisms under better channel condition.
wireless LAN, access protocols, automatic repeat request, block codes, data communication, IEEE standards, performance evaluation, Reed-Solomon codes, telecommunication network reliability, wireless channels, RS block code, aggregated ARQ protocols, IEEE 802.11n networks, wireless local area networks, WLAN, enhanced throughput performance, IEEE 802.11n standard, frame aggregation, system performance, medium access control, MAC perspective, automatic repeat request mechanisms, ARQ mechanisms, reliable data transmission, MAC-defined ARQ protocols, network throughput enhancement, aggregated selective repeat ARQ scheme, ASR-ARQ scheme, worse channel quality, aggregated hybrid ARQ mechanism, AH-ARQ mechanism, Reed-Solomon block code, Automatic repeat request, Barium, Receivers, Analytical models, IEEE 802.11n Standard, Forward error correction, Throughput, performance analysis, Wireless local area networks (WLAN), IEEE 802.11n standard, medium access control (MAC), automatic repeat request (ARQ)
Kai-Ten Feng, Jia-Shi Lin, Yu-Zhi Huang and Li-Chun Wang, "Novel Design and Analysis of Aggregated ARQ Protocols for IEEE 802.11n Networks," in IEEE Transactions on Mobile Computing, vol. 12, no. , pp. 556-570, 2013.