Title :
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
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;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1311-9
DOI :
10.1109/WICOM.2007.195
