Application of LDPC Erasure Correcting Codes in High Mobility Satellite Communication

DOI

10.2991/cnct-16.2017.33How to use a DOI?

Keywords

High mobility environment, Satellite communication, Erasure channel, LDPC codes

Abstract

Providing reliable broadband satellite communications in high mobility environments has attracted considerable attentions in the past few years. One of the biggest challenges is caused by the large Doppler frequency shift due to the rapid relative motion between the transmitters and receivers. The shift, which usually changes with time, can lead to the data loss. The present approaches to mitigate the effect of the shift are concentrated in improving the performance of carrier synchronization, which ensures all the data can be received as much as possible. However, these approaches will exactly increase the complexity of hardware implementation and introduce longer time delay in satellite communication systems. In order to tackle the data loss issues and reduce implementation complexity, we propose a new method in this paper from the perspective of channel coding. Low density parity check (LDPC) codes, which have good performance over erasure channel, are adopted to recover lost data package in high mobility environment. Our algorithm is capable of reducing the complexity of carrier synchronization. The data loss is tolerant and can be recovered by the receiver. The complexity of our proposed algorithm is proportional to code length n. Simulation results show that the channel erasure technique based on LDPC codes can recover the lost data completely within the range of the erasure probability threshold.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yao-Wen WANG
AU  - Dao-Xing GUO
AU  - Xiao-Kai ZHANG
PY  - 2016/12
DA  - 2016/12
TI  - Application of LDPC Erasure Correcting Codes in High Mobility Satellite Communication
BT  - Proceedings of the International Conference on Computer Networks and Communication Technology (CNCT 2016)
PB  - Atlantis Press
SP  - 243
EP  - 248
SN  - 2352-538X
UR  - https://doi.org/10.2991/cnct-16.2017.33
DO  - 10.2991/cnct-16.2017.33
ID  - WANG2016/12
ER  -