Systematic Design of Network Coding-Aware Buffering Strategies

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2011

Autores

Francesco Rossetto (Autor) Outra; Daniel E. Lucani (Autor) FEUP

Ata de Conferência Internacional

Título: Military Communications Conference (MILCOM)

The 2011 Military Communications Conference (MILCOM 2011)

Baltimore, Maryland, USA, 7 a 10 de Novembro de 2011

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia electrotécnica, electrónica e informática

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia de comunicações > Engenharia de telecomunicações

Outras Informações

Resumo (PT): The bandwidth sparing capability of network coding for the two-way relay channel has been illustrated by a recent demonstration of this technique for satellite communications. One of the issues that limits the efficiency of network coding in this setting is the difference between the instantaneous bit rates and packet lengths of the streams that converge from the ground terminals to the satellite, which can lead to significant performance degradation due to zero-padding. This problem can be reduced by introducing a buffer at the intermediate node that will aggregate packets from each flow before combining them. However, the design of such buffering strategies has been performed by means of heuristics. In this paper, we propose a systematic approach for the analysis and design of buffering strategies for the two-way relay channel considering streams with Poisson arrivals of packets and randomly distributed packet lengths. A system optimization is performed in terms of jitter and spared bandwidth.

Abstract (EN): The bandwidth sparing capability of network coding for the two-way relay channel has been illustrated by a recent demonstration of this technique for satellite communications. One of the issues that limits the efficiency of network coding in this setting is the difference between the instantaneous bit rates and packet lengths of the streams that converge from the ground terminals to the satellite, which can lead to significant performance degradation due to zero-padding. This problem can be reduced by introducing a buffer at the intermediate node that will aggregate packets from each flow before combining them. However, the design of such buffering strategies has been performed by means of heuristics. In this paper, we propose a systematic approach for the analysis and design of buffering strategies for the two-way relay channel considering streams with Poisson arrivals of packets and randomly distributed packet lengths. A system optimization is performed in terms of jitter and spared bandwidth.

Idioma: Inglês

Tipo (Avaliação Docente): Científica