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The defense date of the thesis is 2009-09-10
The current date is 2019-03-22
URN etd-0908109-161206 Statistics This thesis had been viewed 1601 times. Download 4 times. Author Chian-Chi Shih Author's Email Address No Public. Department Computer Science and Enginerring Year 2008 Semester 2 Degree Master Type of Document Master's Thesis Language English Page Count 33 Title Research of LDPC Codes Access Management Influence in WiMAX Keyword harq ldpc wimax wimax ldpc harq Abstract Recently, Hybrid Automatic Repeat request (HARQ) is a powerful scheme in communication system. In this paper, we study the Reliability-Based Hybrid ARQ (RB-HARQ) which is a new attractive ARQ scheme with Low-Density Parity-Check (LDPC) codes. The RB-HARQ can use soft-input soft-output (SISO) decoding scheme, the retransmission bits are selected at receiver based on the bit reliability. The other research the nodes of irregular LDPC code have the reliability to correct with degree distribution. LDPC code is an error control coding and popular in communication system which in IEEE802.16e, DVB-S2 and 802.11n are used. However the HARQ scheme of LDPC codes in IEEE802.16e channel coding only can use the chase combining, so we study the RB-HARQ scheme using LDPC codes in IEEE802.16e. Advisor Committee Chia-Sheng Tsai - advisor
Liang-Teh Lee - co-chair
Files Date of Defense 2009-07-15 Date of Submission 2009-09-10