Title :
On Transmission Efficiency for Wireless Broadcast Using Network Coding and Fountain Codes
Author :
Nguyen, Hoang D T ; Tran, Le-Nam ; Hong, Een-Kee
Author_Institution :
Sch. of Electron. & Inf., Kyung Hee Univ., Yongin, South Korea
fDate :
5/1/2011 12:00:00 AM
Abstract :
This paper investigates the benefits of applying fountain codes (FCs) in improving the transmission efficiency in broadcasting systems. Particularly, an exact expression of the transmission efficiency for wireless broadcast using FCs is derived. This derivation allows us to compare the transmission efficiency of the fountain code approach (FCA) and network coding approach (NCA) in wireless broadcast. The numerical results demonstrate that FCA achieves better performance than NCA when the number of users is large and vice versa when the number of users is small.
Keywords :
broadcasting; network coding; broadcasting systems; fountain code approach; network coding approach; transmission efficiency; wireless broadcast; Automatic repeat request; Broadcasting; Decoding; Encoding; Network coding; Propagation losses; Wireless communication; Fountain codes; broadcast; network coding;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2011.031611.101189
