Title :
A New Cross-Level Decoding Scheme for LT Codes
Author :
Chen Cao ; Hongxiang Li ; Zixia Hu
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Louisville, Louisville, KY, USA
Abstract :
In this letter, we propose a new cross-level decoding method for LT codes, where the results of packet-level decoding are fed back to bit-level decoding to improve the overall decoding performance. Another advantage of our method is that it keeps the original LT decoder structure and does not require extra real field computation. We provide the revised And-Or Tree analysis for the proposed method and validate it with numerical simulations.
Keywords :
decoding; transform coding; trees (mathematics); LT codes; LT decoder structure; bit-level decoding; cross-level decoding method; packet-level decoding; revised and-or tree analysis; Decoding; Encoding; Fading; Forward error correction; Iterative decoding; Receivers; Wireless communication; And-Or Tree; And-or tree; LT codes; cross-level decoding;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2015.2407352
