| Autor: |
Mohammad Akbari, Abolfazl Falahati, S M Seyed Hosseini |
| Rok vydání: |
2010 |
| Předmět: |
|
| Zdroj: |
2010 5th International Symposium on Telecommunications. |
| DOI: |
10.1109/istel.2010.5734052 |
| Popis: |
It is known that the Luby Transform codes provide an efficient scheme to transfer information over erasure channels. These codes are also rate-less and robust against packet losses in a jamming environment. In this paper overcome many weaknesses that this coding technique apprehends. Three weaknesses are observed in three different categories when the equivalent matrix is employed. In fact, such codes have these similar weaknesses due to their randomized nature. When this code. Also, the occurrence probability concerning two of them weaknesses categories which can be briefly described as all zero columns and the same digits in many rows are obtained analytically. Identifying these weaknesses, an efficient encoding algorithm is proposed which can improve the successful decoding probability for short length LT block codes. Simulation results justify the effectiveness of the proposed algorithm. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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