Network Coded Transmission of Fountain Codes over Cooperative Relay Networks

Abstract

Abstract-In this paper, a transmission strategy of fountain codes over cooperative relay networks is proposed. When more than one relay nodes are available, we apply network coding to fountain-coded packets. By doing this, partial information is made available to the destination node about the upcoming message block. It is therefore able to reduce the required number of transmissions over erasure channels, hence increasing the effective throughput. Its application to wireless channels with Rayleigh fading and AWGN noise is also analysed, whereby the role of analogue network coding and optimal weight selection is demonstrated.

Impact of intra-flow network coding on the relay channel performance: An analytical study

“…Figure 2 represents the end-to-end probability obtained for both network coding scenarios as a function of P SR and for several values of P SD . Exact analytical values are obtained from equations (8) and (10). Simulation results perfectly match our derivations.…”

“…Complementary yet different studies to this work can be found in [9] and [10]. Qin et al [9] focus on deriving a capacity bound for the single relay cooperative channel while Kurniawan et al propose a combined fountain and network coding solution for a 2-relay cooperative channel.…”

Performance analysis of random linear network coding in two-source single-relay networks

“…An aspect that [3]- [8] have in common is that network coding is not used at the source nodes. Nevertheless, systems that employ intra-session network coding both at the source and the relay stages have been analyzed in the literature, for example [9]- [11]. However, the aforementioned work is concerned with the transmission of network-coded packets from a single source to a single destination via multiple relays.…”

“…This paper is concerned with transmission over an orthogonal MARC when two source nodes are present. The motivation of this work is to study a network configuration that encompasses both intra-session network coding at the source nodes, as in [9]- [11], and inter-session network coding at the relay node, as in [3]- [5]. The probability that the destination node will successfully recover the source packets of both source nodes is used as the performance measure of the system.…”

Simple Bidirectional Transmission Protocols Cooperative Transmission using Network Coding and Digital Fountain Codes

“…In the protocols proposed in [8][9][10] , the XOR operation of received encoded packets is used at relay nodes. However, the implementation of such protocols is complex, and delay time can be increased due to XOR combination at relays.…”