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OBEX over IrDA: performance analysis and optimization by considering multiple applications

Published: 01 December 2006 Publication History

Abstract

OBEX (Object Exchange Protocol) is a session protocol designed to exchange all kind of objects between portable devices using different ad hoc wireless links including IrDA and Bluetooth. This paper develops a mathematical model for OBEX over the IrDA protocol stack by considering multiple applications and presence of bit errors. The model is also verified by simulation results. We derive throughput equations and carry out an optimization study focusing on four major parameters: OBEX packet size, TinyTP (IrDA transport layer) buffer size, IrLAP (IrDA link layer) frame and window size. Equations are derived for the optimum IrLAP windowand frame sizes. Numerical results show significant improvement on OBEX performance using the optimized parameters. The major contribution of this work is the modelling of OBEX including the low layer protocols and optimization of the overall throughput by appropriate parameter selection.

References

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Published In

cover image IEEE/ACM Transactions on Networking
IEEE/ACM Transactions on Networking  Volume 14, Issue 6
December 2006
247 pages

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IEEE Press

Publication History

Published: 01 December 2006
Published in TON Volume 14, Issue 6

Author Tags

  1. IrDA
  2. OBEX
  3. bluetooth
  4. optimization

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