Hybrid Arq Type I Based On Convolutional Code

Authors

  • Hazilah Mad Kaidi
  • Muhammad Ibrahim

DOI:

https://doi.org/10.11113/jt.v54.90

Abstract

Hibrid Automatik Permintaan Ulangan (HARQ), sejenis kaedah mengawal kesilapan berdasarkan pada kod konvolutional di penghantaran paket merentasi saluran tanpa wayar telah dikemukakan. Analisis prestasi daya pemprosesan dan kadar–bit–silap (BER), merujuk kepada simulasi panjang kekangan yang berbeza (K=3 dan K=4) dan kadar kod (1/2 dan 1/3) di kod konvolutional pada HARQ jenis I telah dipersembahkan. Beberapa kebolehupaya kesilapan pembetulan disediakan pada setiap penghantaran semula paket dan maklumat yang boleh dibaiki semula dengan sendiri dari setiap penghantaran atau penghantaran semula jikalau kesilapan adalah berada di antara julat kebolehupaya pembetulan kesilapan. Simulasi HARQ adalah terhad kepada tiga penghantaran semula bagi setiap satu SNR dalam beberapa kali perulangan. Kata kunci: Istilah–Hibrid ARQ; ARQ; pengkodan konvolusional; kawalan kesilapan A Hybrid Automatic Repeat reQuest (HARQ), error control scheme based on a convolutional code for packet transmission over wireless channels was proposed. The analysis of the throughput and bit–error rate (BER) performance, according to the different constraint lengths (K=3 and K=4) and code rate (1/2 and 1/3) of convolutional codes on HARQ type I simulation scheme are presented. Certain error correction capability is provided in each (re)transmitted packet, and the information can be recovered from each transmission or retransmission alone if the errors are within the error correction capability. Simulation of HARQ is limited up to three retransmissions for each SNR in several iterations. Key words: Terms–Hybrid ARQ; ARQ; convolutional coding; error control

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Published

2012-01-20

Issue

Section

Science and Engineering

How to Cite

Hybrid Arq Type I Based On Convolutional Code. (2012). Jurnal Teknologi (Sciences & Engineering), 54(1), 45–54. https://doi.org/10.11113/jt.v54.90