Staged growth codes: intermediate performance and overhead analysis

Wu, Shuang, Xiang, Wei, Wang, Zhenyong, Li, Dezhi, and Guo, Qing (2016) Staged growth codes: intermediate performance and overhead analysis. IEEE Communications Letters, 20 (8). pp. 1503-1506.

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It is well known that the overhead and error performances of LT codes are primarily determined by the degrees of output symbols. This letter derives a novel relationship using the AND-OR tree analytical technique between the redundancy and release probabilities, and the degree of output symbols in LT codes. Armed with this new relationship, we propose a new class of so-called staged growth codes (SGCs), which can provide the intermediate performance. We investigate the asymptotic performance of the proposed SGCs. In comparison with the conventional growth codes, the SGCs need less feedback messages and the overhead is nearly the same as LT codes when the number of blocks is not too much. Observed from the numerical results, an additional attractive feature of the SGCs in comparison with the growth codes is that the SGCs can provide the often desirable unequal error protection property.

Item ID: 46397
Item Type: Article (Research - C1)
ISSN: 1558-2558
Keywords: growth codes, rateless codes, redundancy probability, release probability, intermediate performance
Funders: National Natural Science Foundation of China (NNSFC)
Projects and Grants: NNSFC 61101125
Date Deposited: 09 Nov 2016 07:50
FoR Codes: 40 ENGINEERING > 4006 Communications engineering > 400602 Data communications @ 100%
SEO Codes: 89 INFORMATION AND COMMUNICATION SERVICES > 8901 Communication Networks and Services > 890103 Mobile Data Networks and Services @ 100%
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