Abstract

It was recently shown that the reverse carpooling technique can realize the benefits of network coding while requiring only a simple coding scheme that can be efficiently implemented in practice. However, when no opportunity for coding exists at an intermediate (relay) node, it needs to decide whether to transmit an uncoded packet or wait for the next opportunity to create a coded packet. While the decision to wait for the next coding opportunity can reduce the number of transmissions, it incurs a penalty in terms of packet delay. In this paper we present an on-line algorithm for making transmit/wait decisions at the relay nodes. The algorithm minimizes the total system cost that includes both the number of transmissions as well as packet delay. Our algorithm is based on the primal-dual approach and achieves the competitive ratio of e/(e - 1).

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.