An improved selective-repeat ARQ scheme for IrDA links at high bit error rate

ABSTRACT

In this paper, we propose an improved selective-repeat automatic repeat request (ARQ) scheme which operates with a finite receiver buffer. The throughput performance of the proposed ARQ scheme is examined and compared with the throughput of the IrDA adopted go-back-N ARQ scheme over half-duplex infrared links. Simulation results show that it significantly outperforms the existing go-back-N ARQ scheme, particularly for links with high bit error rate. We also explore that without adapting window size at high bit error rate, the proposed scheme provides a significant improvement in the throughput over a range of bit error rates including high bit error rate. The proposed ARQ scheme is a good compromise between the go-back-N ARQ and the ideal selective repeat ARQ in throughput performance and receiver buffer size. Therefore, it would be applied on IrDA links for achieving high throughput at high error rate.

REFERENCES

• 1: Williams S. 2000. IrDA: Past, Present and Future. IEEE Personal Communications, vol. 7, No. 1, pp 11--19.
• 2: S. Lin, D. Costello and M. Miller. Automatic Repeat Request Error Control Schemes. 1984. IEEE Comm. Mag., vol.22, no.12, pp. 5--17.
• 3: T. Ozugur, M. Naghshineh and P. Kermani. 1998. Comparison of go-back-N and selective reject ARQ modes of HDLC over half duplex and full-duplex IR links and the effects of window size and processor speed in utilization. IEEE International Symposium on Personal, Indoor and Mobile Radio Communication, vol.2, pp. 708--712.
• 4: V. Vitsas and A. C. Boucouvalas.2003. Optimization of IrDA IrLAP Link Access Protocol. IEEE Trans. Wireless Commun., vol.2, no.5, pp. 926--938.
• 5: P. Barker and A. C. Boucouvalas. 1998. Performance Modeling of the IrDA Protocol for Infrared Wireless Communications. IEEE Commun. Mag., vol. 36, no. 12, pp. 113--117.
• 6: IrDA, Serial Infrared Link Access Protocol (IrLAP), Version 1.1 (Infrared Data Association, 1996).
• 7: Opnet#8482; modeller, MIL3 Inc., 3400 International Drive NW, Washington DC 20008, USA.

INDEX TERMS

Keywords:
ARQ scheme, bit error rate, infrared data association (IrDA)