ARQ parameters for VoIP in IEEE 802.16 networks

Authors:
Henrik Martikainen;Olli Alanen;Alexander Sayenko
Affiliations:
Telecommunication Laboratory, MIT Department, University of Jyväskylä, Finland;Telecommunication Laboratory, MIT Department, University of Jyväskylä, Finland;Research & Technology Platforms, Nokia Siemens Networks, Finland
Venue:
WTS'09 Proceedings of the 2009 conference on Wireless Telecommunications Symposium
Year:
2009

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Abstract

IEEE 802.16 standard defines two data retransmission mechanisms. HARQ provides fast retransmissions in cost of slightly increased overhead. On the contrary, ARQ has less overhead in cost of bit longer delays. It is therefore often used with BE connections. In addition to delay tolerant applications, BE can also be used for real-time services. Therefore, in this paper we analyze the ARQ mechanism and provide guidelines on how to set the ARQ parameters to achieve a good balance between the VoIP delay and packet loss.