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Performance and interference control in wireless Ad hoc and mesh networks - a generalized Lagrangian approach

 
: Wiczanowski, M.; Stanczak, S.; Boche, H.

:

IEEE transactions on signal processing 56 (2008), No.8, Part 2, pp.4039-4052
ISSN: 0096-3518
ISSN: 0018-9278
ISSN: 0096-1620
ISSN: 1053-587X
English
Journal Article
Fraunhofer HHI ()

Abstract
This paper deals with the problem of power allocation in heterogeneous wireless networks such as wireless ad hoc and mesh networks. We propose a general approach to power control, with the goal of optimizing some network performance metric subject general constraints at selected links, such as constraints on Signal-to-Interference Ratio or restrictions on received power. Based on a novel construction of generalized Lagrangian function, we develop a primal-dual iteration that converges to a locally optimal power allocation vector. The iteration exhibits linear convergence and has certain advantages in applicability, efficiency and complexity when compared to classical primal-dual methods of similar convergence. Using the recently proposed concept of an adjoint network, we finally present a feedback scheme which allows for the highly desired decentralized realization of the proposed iteration.

: http://publica.fraunhofer.de/documents/N-82071.html