Title :
A Subchannel Renumbering Scheme for IEEE 802.16 OFDMA Systems
Author :
Shih, Kuei-Ping ; Chen, Hung-Chang ; Wang, Sheng-Shih ; Chang, Chau-Chieh ; Chiang, Chi-Tao
Author_Institution :
Dept. of Comput. Sci. & Inf. Eng., Tamkang Univ., Taipei, Taiwan
fDate :
1/1/2012 12:00:00 AM
Abstract :
This letter proposes a subchannel renumbering (SCR) scheme to improve frequency resource utilization in IEEE 802.16 OFDMA systems. SCR rearranges the logical subchannel numbers to derive a group of contiguous subchannels with a high burst profile such that BS can allocate these subchannels to MSs to enhance system throughput. Simulation results validate that SCR can achieve higher subchannel utilization and system throughput, compared with the existing approaches.
Keywords :
OFDM modulation; WiMax; channel allocation; frequency division multiple access; IEEE 802.16 OFDMA systems; frequency resource utilization; logical subchannel numbers; subchannel allocation; subchannel renumbering scheme; system throughput; Downlink; IEEE 802.16 Standards; Indexes; Resource management; Simulation; Throughput; Thyristors; Data Burst; IEEE 802.16; OFDMA; Subchannel Numbering; WiMAX;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2011.110711.111644
