Throughput Analysis of Buffer-Constrained Wireless Systems in the Finite Blocklength Regime

Details Throughput Analysis of Buffer-Constrained Wireless Systems in the Finite Blocklength Regime Throughput Analysis of Buffer-Constrained Wireless Systems in the Finite Blocklength Regime

2010-09-15

arxiv.org/abs/1009.2955v1

Computer Science

Information Theory

Scientific paper

In this paper, wireless systems operating under queueing constraints in the form of limitations on the buffer violation probabilities are considered. The throughput under such constraints is captured by the effective capacity formulation. It is assumed that finite blocklength codes are employed for transmission. Under this assumption, a recent result on the channel coding rate in the finite blocklength regime is incorporated into the analysis and the throughput achieved with such codes in the presence of queueing constraints and decoding errors is identified. Performance of different transmission strategies (e.g., variable-rate, variable-power, and fixed-rate transmissions) is studied. Interactions between the throughput, queueing constraints, coding blocklength, decoding error probabilities, and signal-to-noise ratio are investigated and several conclusions with important practical implications are drawn.

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