Title :
A QoS-Guaranteed Adaptive Resource Allocation Algorithm with Low Complexity in OFDMA System
Author :
Youjun, Gao ; HaiBo, Xu ; Hui, Tian ; Ping, Zhang
Author_Institution :
Coll. of Telecom Eng., Beijing Univ. of Posts & Telecommun.
Abstract :
Orthogonal frequency division multiple access (OFDMA) technique is considered in this paper. We do research on the subcarrier, bit and power allocation algorithm in it and propose the novel dynamic subcarrier and bit allocation algorithm - QoS-guaranteed adaptive resource allocation algorithm with low complexity for real-time services when the instantaneous channel gain is considered. Then we can derive the better system performance when the adaptive algorithm is used in the resource allocation scheme, and it can derive the lower power and complexity in contrast to other existing algorithms
Keywords :
OFDM modulation; frequency division multiple access; matrix algebra; quality of service; OFDMA system; QoS-guaranteed adaptive resource allocation algorithm; bit allocation algorithm; instantaneous channel gain; orthogonal frequency division multiple access; power allocation algorithm; quality of service; real-time services; subcarrier allocation algorithm; Bandwidth; Bit error rate; Bit rate; Educational institutions; Frequency conversion; OFDM; Real time systems; Resource management; Telecommunications; Transmitters;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2006. WiCOM 2006.International Conference on
Conference_Location :
Wuhan
Print_ISBN :
1-4244-0517-3
DOI :
10.1109/WiCOM.2006.62
