Link Adaptive Techniques of OFDM-Based Wireless System

Author

Fan Xiangning ; Zhao Hui ; Zhang Xiaodong

Author_Institution

Sch. of Inf. Sci. & Eng., Southeast Univ., Nanjing

fYear

2007

fDate

21-25 Sept. 2007

Firstpage

755

Lastpage

758

Abstract

According to the channel´s fading characteristics, power control, adaptive modulation and coding (AMC), and auto request retransmission (ARQ) techniques for link adaptive are systematically studied for OFDM-based wireless systems in this paper. Furthermore, simulations and analyses are performed by combing these link adaptive techniques with PF scheduling algorithm. It is shown that there are sufficient performance improvements for system throughput and time delay when these link adaptive techniques are applied.

Keywords

OFDM modulation; adaptive codes; adaptive modulation; automatic repeat request; fading channels; OFDM-based wireless system; PF scheduling algorithm; adaptive coding; adaptive modulation; auto request retransmission; fading characteristics; link adaptive techniques; power control; system throughput; time delay; Adaptive control; Adaptive systems; Algorithm design and analysis; Analytical models; Automatic repeat request; Fading; Modulation coding; Performance analysis; Power control; Programmable control;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4244-1311-9

Type

conf

DOI

10.1109/WICOM.2007.195

Filename

4339970