Effect of H-ARQ on Packet Call Throughput in UTRA TDD HSDPA

High speed downlink packet access (HSDPA) is an advanced proposal in 3GPP framework to ensure high peak and average packet data rate. H-ARQ is a promising technique that can improve system performance significantly in HSDPA, and much research work has been done in the study of its cell throughput performance. However, in this paper packet call throughput comparison between Chase combining and conventional ARQ is emphasized for web browsing service in UTRA TDD HSDPA. From analysis it can be seen that the improvement of H-ARQ on packet call throughput is related to system load. Based on the analysis the ways to guarantee QoS is also discussed. Using a dynamic system simulator for UTRA TDD HSDPA, simulation results are obtained and confirm the analysis.

[1]  G. Mandyam,et al.  Evolving the capabilities of IS-2000: an overview of 1XTREME , 2000, RAWCON 2000. 2000 IEEE Radio and Wireless Conference (Cat. No.00EX404).

[2]  Stefan Parkvall,et al.  Performance comparison of HARQ with Chase combining and incremental redundancy for HSDPA , 2001, IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211).

[3]  Hsuan-Jung Su,et al.  Performance of hybrid ARQ for high speed downlink packet access in UMTS , 2001, IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211).

[4]  Andrea J. Goldsmith,et al.  Degrees of freedom in adaptive modulation: a unified view , 2001, IEEE Trans. Commun..

[5]  Matthew S. Grob,et al.  CDMA/HDR: a bandwidth-efficient high-speed wireless data service for nomadic users , 2000, IEEE Commun. Mag..