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Delay analysis for TDMA schemes with packet recombining

Pereira, M. ; Bernardo, L. ; Dinis, R. ; Oliveira, R. ; Carvalho, P. ; Pinto, P.

Delay analysis for TDMA schemes with packet recombining, Proc Doctoral Conf. on Computing, Electrical and Industrial Systems - DOCEIS, Caparica, Portugal, Vol. , pp. 263 - 272 , February, 2010.

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Abstract
This paper considers the use of SC modulations (Single-Carrier) with FDE (Frequency-Domain Equalization) with low-complexity soft combining ARQ schemes (Automatic Repeat reQuest). With our technique, packets associated to different transmission attempts are combined in a soft way, allowing improved performances. Its low complexity makes it particularly interesting for the uplink of wireless systems. This paper proposes an accurate analytical model for a TDMA (Time Division Multiple Access) scheme where packet combining ARQ is applied. It evaluates the uplink non-saturated packet delay for a generic message arrival process. Our analytical results are validated using physical and MAC layer simulations.