Second-Order Memory Based LT Encoder Design

Shang, Luyao; Perrins, Erik

doi:10.1109/glocomw.2016.7849036

Cited by 4 publications

(2 citation statements)

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“…When d = 2, it samples one input symbol from those with the highest instantaneous degrees, then another one from those symbols with the second highest instantaneous degree. The details are shown in Algorithm 1 [22].…”

Section: Second-order Mbltementioning

confidence: 99%

“…These works mostly rely on either feedback channels or encoding/decoding operations with higher complexities, none of which is favorable to UDNs since: (i) due to the massive number of devices, leveraging the feedback channel may not be feasible, and (ii) low-power SBS, IoT, and sensory devices are not well-suited for high complexity encoding and decoding operations. Recently, memory-based LT encoders (MBLTEs) [20][21][22][23][24] were proposed for improving the bit-error-rate (BER)/frameerror-rate (FER) performance of LT codes with relatively short block-lengths at the cost of adding memory into the encoder while maintaining the same low encoding/decoding complexity as LT codes.…”

Section: Introductionmentioning

confidence: 99%

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Delay-Efficient and Reliable Data Relaying in Ultra Dense Networks using Rateless Codes

Shang

Hashemi

Kim

et al. 2020

GLOBECOM 2020 - 2020 IEEE Global Communications Conference

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We investigate the problem of delay-efficient and reliable data delivery in ultra-dense networks (UDNs) that constitute macro base stations (MBSs), small base stations (SBSs), and mobile users. Considering a two-hop data delivery system, we propose a partial decode-and-forward (PDF) relaying strategy together with a simple and intuitive amicable encoding scheme for rateless codes to significantly improve user experience in terms of end-to-end delay. Simulation results verify that our amicable encoding scheme is efficient in improving the intermediate performance of rateless codes. It also verifies that our proposed PDF significantly improves the performance of the decode-and-forward (DF) strategy, and that PDF is much more robust against channel degradation. Overall, the proposed strategy and encoding scheme are efficient towards delay-sensitive data delivery in the UDN scenarios.

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Section: Second-order Mbltementioning

confidence: 99%