Performance comparison of HARQ and ARQ mechanisms in IEEE 802.16 networks

Authors:
Alexander Sayenko;Henrik Martikainen;Alexander Puchko
Affiliations:
Nokia Research Center, Helsinki, Finland;University of Jyvaskyla, Jyvaskyla, Finland;University of Jyvaskyla, Jyvaskyla, Finland
Venue:
Proceedings of the 11th international symposium on Modeling, analysis and simulation of wireless and mobile systems
Year:
2008

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Abstract

The IEEE 802.16 technology defines several link level mechanisms to retransmit erroneous data. In this paper we compare the performance of the ARQ and HARQ mechanisms in the IEEE 802.16 networks. Our simulations results show that in general HARQ provides a better performance. However, ARQ can compete successfully with it due to a smaller signaling overhead. Furthermore, since ARQ does not require a dedicated uplink signaling channel for the acknowledgments messages, it results in better resources utilization in the uplink direction.