Throughput-Lifetime tradeoffs in multihop wireless networks under a realistic interference model.

Abstract

Throughput and lifetime are both crucial design objectives for multihop wireless networks. In general, it is not

sufficient to optimize either of them separately. As these two

objectives are often conflicting with each other, we can only

hope to identify the tradeoffs between them. This entails a

harder problem than dealing with either solely. In this paper,

we propose a general framework for investigating the tradeoff

between throughput and lifetime. We employ a utility-based

tradeoff objective that allows us to identify tradeoffs that are

of physical interest. We consider a scheduled network where

link transmissions can be coordinated to be conflict-free. We use

a realistic interference model owing to which we gain a deep

understanding of the network configurations that achieve the

optimal tradeoffs. Our analytical and numerical results provide

instructive insights into the interplay between the configurations

and the throughput/lifetime.