Energy, latency and capacity Trade-offs in wireless multi-hop networks

Jean-Marie Gorce 1 Ruifeng Zhang 1 Katia Jaffres-Runser 1, 2 Claire Goursaud 1
1 SWING - Smart Wireless Networking
Inria Grenoble - Rhône-Alpes, CITI - CITI Centre of Innovation in Telecommunications and Integration of services
Abstract : This paper concentrates on characterizing energy, latency and capacity trade-offs in multi-hop wireless ad-hoc networks. Therefore, a multiobjective framework is proposed to derive the Pareto-optimal set of solutions with respect to these three criteria. The work presented in this paper assumes a linear network where transmission powers and relay positions are optimization variables. We study the asymptotic state where the distance between source and destination is very high such that the number of hops tends to infinite. Two types of traffic are considered in the following. First, low rate traffic is analyzed by characterizing the multiobjective performance of a single packet transmission using an interference free multi-hop relaying strategy. Second, a continuous flow of packets from a unique source is considered. In the first case, we show an important theorem which states that all Pareto optimal solutions with respect to delay and energy metrics provide the same target SNR at the receiver side. In the second case, our analytical results highlight how the energy/delay Pareto front moves when considering a capacity constraint and the optimal re-use factor is derived.
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Communication dans un congrès
21st Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, Sep 2010, Istanbul, Turkey. pp.2755--2760, 2010
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Jean-Marie Gorce, Ruifeng Zhang, Katia Jaffres-Runser, Claire Goursaud. Energy, latency and capacity Trade-offs in wireless multi-hop networks. 21st Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, Sep 2010, Istanbul, Turkey. pp.2755--2760, 2010. 〈inria-00518411〉

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