SatNEx IV - Tecnical Note of SatNEx IV - Call of Order 1 Part 1 - WI4

This technical note deals with a literature survey on the adoption of Network Coding (NC), differentiated on the basis of the OSI layer where network coding is adopted. Therefore, this document is divided into three parts, as follows: Technical Challenge #1 (TC1), Network coding adopted at application layer (or just below); Technical Challenge #2 (TC2), Network coding applied at transport layer (or just below); Technical Challenge #3 (TC3), Network coding applied at network layer (or just below). The purpose of this document is to survey the different applications of network coding explaining why it is used and how it is used with a particular attention to multipath scenarios and satellite case studies. A second part of this report contains a detailed description of the selected simulation scenarios by the team and a description of related issues in terms of layer where NC should be used and NC compatibility issues (ROHC, IPsec). Finally, benchmark techniques are presented and a description of the implementation phase of simulators (3 scenarios) is provided together with some results and comparisons with benchmark schemes. A third part of this report contains a survey of currently available simulation tools for network coding and discusses about pros and cons. Simulations results and final considerations are also provided that have permitted to highlight the advantages in using network coding.