Design of Efficient Broadcast Transmission Strategy for Spatial Networks Based on LT Codes with Feedback Channel

SUO Longlong; ZHANG Genxin; BIAN Dongmin; Lü Jing; XIE Zhidong

doi:10.11999/JEIT170820

Volume 40 Issue 6

May 2018

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Article Navigation > Journal of Electronics & Information Technology > 2018 > 40(6): 1433-1437

SUO Longlong, ZHANG Genxin, BIAN Dongmin, Lü Jing, XIE Zhidong. Design of Efficient Broadcast Transmission Strategy for Spatial Networks Based on LT Codes with Feedback Channel[J]. Journal of Electronics & Information Technology, 2018, 40(6): 1433-1437. doi: 10.11999/JEIT170820

Citation:

SUO Longlong, ZHANG Genxin, BIAN Dongmin, Lü Jing, XIE Zhidong. Design of Efficient Broadcast Transmission Strategy for Spatial Networks Based on LT Codes with Feedback Channel[J]. Journal of Electronics & Information Technology, 2018, 40(6): 1433-1437. doi: 10.11999/JEIT170820

Citation:

SUO Longlong, ZHANG Genxin, BIAN Dongmin, Lü Jing, XIE Zhidong. Design of Efficient Broadcast Transmission Strategy for Spatial Networks Based on LT Codes with Feedback Channel[J]. Journal of Electronics & Information Technology, 2018, 40(6): 1433-1437. doi: 10.11999/JEIT170820

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Design of Efficient Broadcast Transmission Strategy for Spatial Networks Based on LT Codes with Feedback Channel

doi: 10.11999/JEIT170820

1.
(Institute of Communications Engineering, Army Engineering University, Nanjing 210007, China)
2.
(School of Telecommunication and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003 China)

Funds:

The National Natural Science Foundation of China (91738201, 61571464, 61601511)

Received Date: 2017-08-14
Rev Recd Date: 2018-03-14
Publish Date: 2018-06-19

Abstract

Abstract

Since its wide coverage area, data broadcast is the major service of spatial system. However, due to the long distance and the complex, varied climate, data transmission suffers large round-trip-time and poor error performance. In order to achieve better performance, based on fountain codes and the feedback information, a novel and efficient data transmission strategy is proposed. Compared with typical protocols, the proposed strategy uses the feedback information to estimate the channel erasure probability. Besides, a weighted packet chosen vector is introduced into the fountain encoder to ensure the lost packets retransmitted in the order of the total consideration of their lost probability and the number of users which need a retransmission. Simulation results show that by the proposed scheme users can receive the data packets reliably while the total number of transmitted packets is less than the traditional protocols.
- Spatial networks,
- Broadcast strategy,
- LT codes,
- Weighted chosen vector,
- Transmission efficiency

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References(30)

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