A novel ARQ scheme based on Network Coding Theory in Cognitive Radio networks

Author

Liu, Yang ; Feng, Zhiyong ; Zhang, Ping

Author_Institution

Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing, China

fYear

2010

fDate

Aug. 28 2010-Sept. 3 2010

Firstpage

1

Lastpage

4

Abstract

In this paper, Network Coding (NC) Theory is introduced to improve efficiency of the traditional ARQ scheme for Cognitive Radio (CR) broadcast, named as NC-ARQ, in which we consider making the CR basestation combine the lost packets during ARQ broadcast retransmission in CR networks (CRN), with the changeable availability of CR channel. The Broadcast Cost is defined to indicate and compare the theoretic performance between traditional ARQ scheme and NC-ARQ. Numerical results are analyzed to validate the performance improvement of NC-ARQ.

Keywords

automatic repeat request; cognitive radio; network coding; radio broadcasting; wireless channels; ARQ broadcast retransmission; CR basestation; CR channel; CR network; NC-ARQ scheme; broadcast cost; cognitive radio broadcast; cognitive radio network; lost packet; network coding; Automatic repeat request; Cognitive radio; Equations; Markov processes; Mathematical model; Network coding; Probability; ARQ; Broadcast; Cognitive Radio Networks; Markov Model; Network Coding;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Information Technology and Systems (ICWITS), 2010 IEEE International Conference on

Conference_Location

Honolulu, HI

Print_ISBN

978-1-4244-7091-4

Type

conf

DOI

10.1109/ICWITS.2010.5611991

Filename

5611991