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Communication Dans Un Congrès Année : 2008

On design of TDD for joint uplink and downlink resource allocation in OFDMA-based WiMax

Résumé

In this paper, we study the joint design of uplink and downlink resources in OFDMA-based systems. We first analyze the interactions between uplink and downlink, due essentially to the usage of Time Division Duplexing (TDD) and the TCP ACK/NACKs. This analysis is based on analytical models for interference and throughputs that we develop for both directions. We next study the capacity of the system using a Markovian analysis and matrix geometric solutions. Our performance analysis study allows us to determine the optimal proportion of resources that has to be allocated to the uplink; In addition to that, we show that an admission control policy reserving some uplink resources to TCP ACKs may improve the overall capacity of the system

Dates et versions

hal-01394092 , version 1 (08-11-2016)

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Citer

Tijani Chahed, Salah-Eddine Elayoubi, Eitan Altman. On design of TDD for joint uplink and downlink resource allocation in OFDMA-based WiMax. VTC FALL 2008 : 68th IEEE Vehicular Technology Conference, Sep 2008, Calgary, Alberta, Canada. pp.1 - 5, ⟨10.1109/VETECF.2008.305⟩. ⟨hal-01394092⟩
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