Title :
Channel-Aware Slot Assignment by Ant Colony in OFDMA-Based Mobile WiMAX Networks
Author :
Hwang, I-Shyan ; Chiu, Chien-Yao ; Hwang, Bor-Jiunn
Author_Institution :
Dept. of Comput. Sci. & Eng., Yuan-Ze Univ., Taoyuan, Taiwan
Abstract :
In this paper, a novel adaptive ant colony slot assignment (ACSA) algorithm including construct solution and pheromone update is proposed to assign OFDMA-based radio resource. The aim of ACSA is to achieve high bandwidth efficiency on the basis of specific channel conditions while guaranteeing the QoS requirements. Performance comparisons with the rate-guaranteed competitive scheduling (RCS) are presented in terms of delay, jitter, packet dropping rate, throughput and waste to highlight the better behavior of our proposed schemes.
Keywords :
OFDM modulation; WiMax; frequency division multiple access; optimisation; quality of service; radio networks; ACSA; OFDMA-based mobile WiMax networks; QoS requirements; RCS; adaptive ant colony slot assignment algorithm; channel-aware slot assignment; delay; jitter; packet dropping rate; rate-guaranteed competitive scheduling; specific channel conditions; Algorithm design and analysis; Delay; Quality of service; Real time systems; Resource management; Throughput; WiMAX; ACO; ACSA; Channel-aware; Slot allocation;
Conference_Titel :
Parallel Processing Workshops (ICPPW), 2011 40th International Conference on
Conference_Location :
Taipei City
Print_ISBN :
978-1-4577-1337-8
Electronic_ISBN :
1530-2016
DOI :
10.1109/ICPPW.2011.36
