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Reports (Research Report) Year : 2011

A Multi-objective Optimization of Broadband WMN: Energy-Capacity Tradeoff and Optimal System Configuration

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Anis Ouni
Hervé Rivano
Fabrice Valois

Abstract

This paper is focused on broadband wireless mesh networks based on OFDMA resource management. We develop an extensible linear programing model using column generation to compute power efficient schedules with high network capacity. We adopt a more realistic model for the physical layer using SINR model with a fine tuned power control at each node. Correlation between capacity and energy consumption is analyzed as well as the impact of physical layer parameters - SINR threshold and path-loss exponent. We highlight that there is no significant tradeoff between capacity and energy when the power consumption of idle nodes is important. Furthermore, we include an adaptive modulation in each node combined with a variable transmission rate to find an optimal system configuration of the network. We also study the impact of power control, spacial reuse and adaptive modulation on capacity and energy consumption and we give some network engineering results.
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Dates and versions

hal-00619827 , version 1 (08-09-2011)

Identifiers

  • HAL Id : hal-00619827 , version 1

Cite

Anis Ouni, Hervé Rivano, Fabrice Valois. A Multi-objective Optimization of Broadband WMN: Energy-Capacity Tradeoff and Optimal System Configuration. [Research Report] RR-7730, INRIA. 2011. ⟨hal-00619827⟩
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