Title :
Sum-Product Algorithm Utilizing Soft Distances on Additive Impulsive Noise Channels
Author :
Johnston, Michael ; Sharif, Bayan S. ; Tsimenidis, Charalampos C. ; Chen, Luo-nan
Author_Institution :
Sch. of Electr. & Electron. Eng., Newcastle Univ., Newcastle upon Tyne, UK
Abstract :
In this letter, a Sum-Product algorithm (SPA) utilizing soft distances is shown to be more resilient to impulsive noise than conventional likelihood-based SPAs, when the noise distribution is unknown. An efficient version of the soft distance SPA is also developed but with half the storage requirements and running time.
Keywords :
channel coding; impulse noise; parity check codes; LDPC code; additive impulsive noise channels; likelihood-based SPA; low density parity check codes; soft distance SPA; sum-product algorithm; Additives; Bit error rate; Decoding; Iterative decoding; Noise; Sum product algorithm; Block codes; Gaussian noise; decoding; impulse noise; iterative methods;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2013.043013.110141
