Zaheer, Shaikh Faisal (2006) Improved rate-compatible low-density parity-check codes with applications to wireless channels. Masters thesis, King Fahd University of Petroleum and Minerals.
Strong rate-compatible codes are important to achieve high throughput in hybrid automatic repeat request with forward error correction (ARQ/FEC) systems in networks utilizing packet data transmission. This thesis focuses on the construction of efficient rate-compatible low density parity check (RC-LDPC) codes over a wide rate range. Two LDPC code families are considered: the regular LDPC family which is known for good performance and low error floor, and semi-random LDPC which offers performance similar to Regular LDPC codes and also enables low encoding complexity. Efficient RC-LDPC codes are constructed and a hybird ARQ/FEC system using RC-LDPC codes is evaluated. Compared to existing ARQ/FEC systems , the proposed system based on semi-random LDPC codes offers the advantages of low encoding complexity and higher throughput. The application of rate-compatible semi-random codes to systems employing coded cooperation diversity is investigated. Additionally an algorithm is developed for the removal of small loops from semi-random LDPC codes.
|Item Type:||Thesis (Masters)|
|Divisions:||College Of Engineering Sciences > Electrical Engineering Dept|
|Creators:||Zaheer, Shaikh Faisal|
|Committee Advisor:||Zummo, Salam A.|
|Committee Members:||Kousa, Maan A. G. and Al-Semari, Saud A. and Landolsi, M. Adnan and Muqaibel, Ali H.|
|Deposited By:||KFUPM ePrints Admin|
|Deposited On:||22 Jun 2008 17:05|
|Last Modified:||30 Apr 2011 15:36|
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