Performance of EGPRS incremental redundancy in interference limited environments

M. Mzyece, J. Dunlop

Research output: Contribution to conferencePaper

2 Citations (Scopus)

Abstract

Incremental Redundancy (IR), an established Hybrid-ARQ technique, has been proposed as an adaptive link level mechanism in third-generation and evolved second-generation wireless systems such as the Enhanced General Packet Radio Service (EGPRS). In this paper, three alternative EGPRS Incremental Redundancy ARQ algorithms of low (IR-ARQ1), medium (IR-ARQ2) and high (IR-ARQ3) computational complexity are specified. The relative downlink performance of the specified algorithms is evaluated for interference-limited mobile radio environments with pedestrian (5 km/h) and vehicular (50 km/h) mobile speeds, using a high-speed link level simulator. For comparison, a basic Selective-Repeat ARQ algorithm (SR-ARQ) is also implemented. The algorithms are compared in terms of their throughput performance, transmission delay performance, and processing requirements. It is shown that the most significant performance improvement is from SR-ARQ to IR-ARQ1 (up to about 2dB at 5 km/h, and 5 dB at 50 km/h). The performance gains from IR-ARQ1 to IR-ARQ2, and from IR-ARQ2, to IR-ARQ3 are negligible. Overall, the results suggest that implementing a low-complexity Incremental Redundancy ARQ algorithm gives the optimal performance/complexity trade-off.
Original languageEnglish
Pages873-877
Number of pages5
DOIs
Publication statusPublished - Oct 2002
Event5th International Symposium on Wireless Personal Multimedia Communications - Honolulu, United States
Duration: 27 Oct 200230 Oct 2002

Conference

Conference5th International Symposium on Wireless Personal Multimedia Communications
CountryUnited States
CityHonolulu
Period27/10/0230/10/02

Keywords

  • performance
  • egprs
  • incremental redundancy
  • interference-limited
  • environments

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  • Cite this

    Mzyece, M., & Dunlop, J. (2002). Performance of EGPRS incremental redundancy in interference limited environments. 873-877. Paper presented at 5th International Symposium on Wireless Personal Multimedia Communications , Honolulu, United States. https://doi.org/10.1109/WPMC.2002.1088302