Programming codes

Network coding

Network coding (NC) is considered a breakthrough to improve throughput, robustness, and security of wireless networks. Although the theoretical aspects of NC have been extensively investigated, there have been only few experiments with pure NC schematics.

This work presents an implementation of NC under a two-way relay model and extends it to two non-straightforward scenarios: (i) multimedia transmission with layered coding and multiple-description coding, and (ii) cognitive radio with Vandermonde frequency division multiplexing (VFDM). The implementation is in real-time and based on software-defined radio (SDR). The experimental results show that, by combining NC and source coding, we can control the quality of the received multimedia content in an on-demand manner. Whereas in the VFDM-based cognitive radio, the quality of the received content in the primary receiver is low (due to imperfect channel estimation) yet retrievable. Our implementation results serve as a proof for the practicability of network coding in relevant applications.

Fig: Network coding methods in the TWR model

Download & Installation

Our codes are open-source for research purposes and always available here.

Please follow the instructions provided with regard to installing and operating the network coding here.

Reference

If you use this code, please acknowledge the following paper:

[1] Tran Thi Thuy Quynh, Ngo Khac Hoang, Nguyen Van Ly, Nguyen Linh Trung, Nguyen Quoc Tuan, Ejder Bastug, Sylvain Azarian, Le Vu Ha, Vo Nguyen Quoc Bao, Tran Xuan Nam, Merouane Debbah, Pierre Duhamel. Network coding with multimedia transmission and cognitive networking: An implementation based on software-defined radio. REV Journal on Electronics and Communications, vol. 10, no. 3-4, pp. 72-84, 2020. [PDF].

Contact

LE Trung Thanh

AVITECH Institute
VNU University of Engineering and Technology, Vietnam

Email: thanhletrung@vnu.edu.vn // letrungthanhtbt@gmail.com

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