Mathematical Model of Standard GSM System Supporting Full and Half-Rate Speech Codecs

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Abstract

Usage of dual (Full/Half) rate mode in standard GSM system gives the possibility to
increase considerably the performance of radio resources in the cell. In this work we develop
a mathematical model of a system with repacking, supporting Full-Rate (FR) and Half-Rate
(HR) modes. We define a threshold for the number of FR-calls served simultaneously. The
balance equations and formulas for QoS parameters are derived. The advantages of dual rate
mode usage are shown through numerical examples.

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G P Basharin

Peoples Friendship University of Russia

Кафедра систем телекоммуникаций; Российский университет дружбы народов; Peoples Friendship University of Russia

S N Klapouschak

Peoples Friendship University of Russia

Кафедра систем телекоммуникаций; Российский университет дружбы народов; Peoples Friendship University of Russia

A M Konnon

Peoples Friendship University of Russia

Кафедра систем телекоммуникаций; Российский университет дружбы народов; Peoples Friendship University of Russia

N V Mitkina

Peoples Friendship University of Russia

Кафедра систем телекоммуникаций; Российский университет дружбы народов; Peoples Friendship University of Russia

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Copyright (c) 2009 Башарин Г.П., Клапоущак С.Н., Коннон А.М., Митькина Н.В.

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