Paper Info
Title
Power savings with data rate guarantee in dense WLANs
Abstract
We investigate the problem of minimising power consumption in dense Wireless Local Area Networks (WLANs), by optimally establishing the association of User Terminals (UTs) to Access Points (APs). This management allows to switch off some APs, granting important power savings, while at the same time guaranteeing to satisfy the data rate requirements of all UTs. The considered WLAN power minimization problem can be formulated as an Integer Linear Programming (ILP) model and can be in principle solved by any commercial optimization solver. However, the problem is NP-hard and, as we show through thorough computational tests, even a last generation state-of-the-art solver like IBM ILOG CPLEX can have difficulties in finding solutions of good quality in short amount of time, as required in real WLAN deployments. As a consequence, we propose two new fast heuristic algorithms for WLAN power minimization. Furthermore, we show that, in some cases, also a proper setting of the parameters of CPLEX can compute solutions associated with good power savings in a reasonable time.
Year
DOI
Venue
2017
10.1109/MoWNet.2017.8045946
2017 International Conference on Selected Topics in Mobile and Wireless Networking (MoWNeT)
Keywords
Field
DocType
Wireless LAN,Power Efficiency,Resource Allocation,Integer Linear Programming,Network Management,Heuristics
Heuristic,IBM,Mathematical optimization,Wireless,Computer science,Integer programming,Minification,Data rate,Local area network,Solver
Conference
ISSN
ISBN
Citations 
2378-8194
978-1-5090-4978-3
0
PageRank 
References 
Authors
0.34
12
3
Name
Order
Citations
PageRank
Fabio D'Andreagiovanni121117.03
Rosario Giuseppe Garroppo212617.92
Maria Grazia Scutella3675.61