Paper Info
Title
Offloading Wireless Cellular Networks via Energy-Constrained Local Ad Hoc Networks.
Abstract
Increasing the capacity of wireless cellular networks is a major concern for network operators. We address the problem of offloading the cellular network via assistance from the mobile terminals to receive an on-demand common content from the base station. The base station unicasts the content to selected mobile terminals that either unicast or multicast it to other mobile terminals over local ad hoc networks. We formulate the resulting problems as linear mixed integer optimization problems that minimize the required number of cellular channels subject to energy consumption constraints at the mobile terminals side. Performance results demonstrate that the achieved gains in terms of reduction of cellular channels depend significantly on the mobile terminals' energy consumption constraints. For one hop ad hoc networks, significant reduction gains reaching up to 90% and 50% for multicasting and unicasting, respectively, can be achieved, if only 5% of the mobile terminals' battery level can be spent on cooperation. More gains can be achieved with multihop ad hoc networks, however, at the cost of a higher computationally complex solution.
Year
DOI
Venue
2011
10.1109/GLOCOM.2011.6133570
GLOBECOM
Keywords
DocType
ISSN
ad hoc networks,cellular radio,computational complexity,integer programming,linear programming,base station,cellular channels,computationally complex solution,energy consumption constraints,energy-constrained local ad hoc networks,linear mixed integer optimization problems,mobile terminals,multicast terminals,multihop networks,network operators,offloading wireless cellular networks,on-demand common content,unicast terminals
Conference
1930-529X
Citations 
PageRank 
References 
1
0.35
0
Authors
2
Name
Order
Citations
PageRank
Lina Al-Kanj117611.02
Zaher Dawy286973.62