CHANNEL ALLOCATION COMPARATIVE ANALYSIS FOR TDMA TECHNOLOGY / ALOCAÇÃO DE CANAIS ANÁLISE COMPARATIVA PARA TECNOLOGIA TDMA

AUTOR(ES)
DATA DE PUBLICAÇÃO

2002

RESUMO

Fixed channel assignment -FCA- brings to the Cellular Communication Systems stability at the cost of the use of frequency planning, leading to low tolerance to traffic variability. Dynamic channel assignment -DCA- algorithms have been proposed by several authors in order to minimize these problems,incorporating flexibility to the system with respect to channel selection. Hybrid channel assignment - HCA- combines the techniques of fixed and dynamic channel assignment, giving to the system stability and flexibility at the same time. This work compares the FCA, DCA and HCA algorithms on the same simulation scenario, allowing a complete analysis of these approaches. The FCA used is the simplest. In this algorithm, the first channel with an acceptable level of signal to interference ratio is chosen to be allocated. The DCA uses the technique of Channel Segregation -CS-, a distributed self-learning algorithm that is shown to yield very good performance. The third algorithm,HCA, combine the two previous techniques. At the end, the impact of prioritizing the procedure of handoff will be analyzed, using the technique known as Guard Channel.

ASSUNTO(S)

alocacao hibrida de canal guard channel alocacao dinamica de canal canal de guarda alocacao fixa de canal dynamic channel assignment tdma fixed channel assignment channel segregation hybrid channel assignment segregacao de canal tdma

ACESSO AO ARTIGO

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