Topology control for wireless sensor networks
Proceedings of the 9th annual international conference on Mobile computing and networking
Towards mobility as a network control primitive
Proceedings of the 5th ACM international symposium on Mobile ad hoc networking and computing
LCN '05 Proceedings of the The IEEE Conference on Local Computer Networks 30th Anniversary
On the Use of Nodes with Controllable Mobility for Conserving Power in MANETs
ICDCSW '06 Proceedings of the 26th IEEE International ConferenceWorkshops on Distributed Computing Systems
Enhancing WLAN Capacity by Strategic Placement of Tetherless Relay Points
IEEE Transactions on Mobile Computing
Wireless Communications & Mobile Computing
Hi-index | 0.00 |
Since the capacity of a wireless link depends on the distance between its transmitter and receiver nodes, the optimal placement of nodes in the wireless network is important to improve the system efficiency. We study this issue in this paper considering a wireless network that consists of multiple nodes that do not have controllable mobility and a relay node that has controllable mobility. We model the capacity of a wireless link between node and relay node as a function of the distance between them. We then formulate the optimization problem that aims at maximizing the weighted throughput of a node that achieves the lowest weighted throughput among all nodes. Unfortunately, the problem is inherently non-convex, which is in general difficult to solve. However, in this paper, we develop the algorithm for the optimal placement of the relay node based on duality theories in optimization. We also show that the optimal position of the relay node obtained by our algorithm is in fact the weighted max-min fair position.