A SCTP – Layer 2 Cross Layer Mechanism for Data Handover in Wireless Networks (application to EGPRS)

نویسندگان

  • Mériem Afif
  • Philippe Martins
  • Sami Tabbane
  • Philippe Godlewski
چکیده

This paper proposes a new extension for the SCTP pro­ tocol which aims at improving the transport performance in wire­ less environments. This extension is named QoS_Measurement_chunk. It relies a) on a cross-layer mechanism taking place between SCTP and the link layer and b) on a new SCTP control chunk. Network can be informed of variations of link layer transmission conditions via control QoS_Measurement_chunks and SCTP congestion control para­ meters are modified to take into account new radio conditions. The present study illustrates the use of this extension in a EGPRS context. It compares its performances with standard SCTP when downlink transmission is considered in handoff situation.

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تاریخ انتشار 2005