Flexible On-Line Construction of IRA Codes for Packet Erasure Correction with Application to Aeronautical Communications

Abstract

Abstract-In many applications erasure correcting codes are used to recover packet losses at high protocol stack layers. The objects (e.g. files) to be transmitted often have variable sizes, resulting in a variable number of packet to be encoded by the packet-level encoder. In this paper, algorithms for the (online) flexible design of parity-check matrices for irregular-repeataccumulate codes are investigated. The proposed algorithms allow designing in fast manner parity-check matrices that are suitable for low-complexity maximum-likelihood decoding. The code ensembles generated by the proposed algorithms are analyzed via extrinsic information transfer charts. Numerical results show how the designed codes can attain codeword error rates as low as 10

AeroMACS evolution - analysis during landing, takeoff, and approach phases

“…The adoption of a multicarrier technology provides the system with high spectral efficiency, increased robustness against multipath distortions, and a remarkable flexibility in assigning system resources. It was recently shown that further physical layer (PHY) advancements can be achieved by introducing packet level coding [7], multiple antenna techniques [8], different cooperative communication schemes [9,10], and efficient subcarrier allocation methods [11]. The basic functionality of AeroMACS is the support of surface airport communications with vehicle speeds up to 92 km/h (50 kn).…”