03145nas a2200433 a 4500 20260818094259.0 071203s2007 th uu|m rtt 0| a1eng d .b12025665 AIT Thesis no.TC-07-5 Nguyen Chi Quang Dynamic resource allocation for WiMAX systems Pathum Thani, Thailand : Asian Institute of Technology, 2007 56 leaves : ill. Thesis ; no. TC-07-5 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Telecommunications Thesis (M.Eng.) - Asian Institute of Technology, 2007 IEEE 802.16 standard, often preferred as WiMAX, uses OFDMA access technique to transfer high data rates. The standard offers flexible bandwidth and different modulation and coding schemes (QPSK, 16QAM, 64QAM) to enable WiMAX systems to adaptively change the speed and capacity of the wireless connection based on the demand. The Radio Link Control should provide dynamic changing of UL and DL burst profiles on a per-connection and per-frame basis, depending on radio channel characteristics and QoS requirements. This thesis proposes dynamic resource allocation schemes for WiMAX systems (employing OFDMA physical layer option) in both Uplink and Downlink in which we can dynamically allocate bandwidth for different kind of services with different priorities; every subscriber station can flexibly download and upload data using the best modulation and coding scheme for each Sub-Channel. Network Simulator 2 is employed to simulate these schedulers and the results show that the throughput for both Uplink and Downlink can be improved much (even in the case the radio conditions vary a lot) when applying these allocation mechanisms and the average delays still satisfy the delay critical of all services IEEE 802.16 (Standard) Orthogonal frequency division multiplexing Poompat Saengudomlert, Chairperson Rajatheva, R.M.A.P, Examination Committee Erke, Tapio J., Examination Committee Project 300, Vietnam, Scholarship Donor Asian Institute of Technology Fellowship, Scholarship Donor Asian Institute of Technology. Thesis ; no. TC-07-5 .b12025665 mnait u 231005 0 071203 m a u 0 mnait mnarc mnait 22 40 20 Barcode : 30050120811509 CREATED : 2014-04-21 RECORD # : i12790515 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050160043674 CREATED : 2016-03-17 RECORD # : i12894035 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050211026066 CREATED : 2022-01-13 RECORD # : i13358881 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 32031 32031 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.TC-07-5 30050120811509 2026-08-18 09:42:59 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.TC-07-5 30050160043674 2026-08-18 09:42:59 2026-08-18 40 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.TC-07-5 30050211026066 2026-08-18 09:42:59 1 2026-08-18 20