A Channel Quality and QoS Aware Bandwidth Allocation Algorithm for IEEE 802.16 Base Stations
AINA '08 Proceedings of the 22nd International Conference on Advanced Information Networking and Applications
A dynamic frequency allocation scheme for IEEE 802.16 OFDMA-based WMANs using hungary algorithm
EUC'07 Proceedings of the 2007 conference on Emerging direction in embedded and ubiquitous computing
WD'09 Proceedings of the 2nd IFIP conference on Wireless days
Computationally efficient bandwidth allocation and power control for OFDMA
IEEE Transactions on Wireless Communications
Journal of Network and Computer Applications
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Many burst construction algorithms have been proposed for Orthogonal Frequency Division Multiple Access (OFDMA). However, none meets the burst structure characteristics required by the IEEE 802.16 standard. In this study, two heuristic algorithms, Best Corner Oriented (BCO) and Best Subchannel Oriented (BSO), are proposed to provide high throughput for uplink burst construction in IEEE 802.16 networks. The BCO maintains all available slots as a continuous area and attempts to construct each burst from one of the two ending slots of this area. The BSO, however, constructs each burst in its best quality subchannels to adopt a better modulation coding scheme (MCS). The simulation results under a heavy load indicate that BSO and BCO achieve 2 and 1.5 times, respectively, the throughput achieved by Raster, the conventional algorithm. However, the superior performance of BSO is achieved at the expense of increased time complexity.