Sustaining performance under operational turbulence

Sustaining Performance Under Traffic Overload

In this paper, we investigate the performance of wireless ad hoc networks with traffic loads beyond saturation. While it is desirable to operate a network below saturation, an ad hoc network should be designed to degrade its performance gracefully under severe loads. Using AODV (ad hoc on-demand distance vector) and 802.11 as example routing and MAC (Medium Access Control) level protocols, we s...

Sustaining dry surfaces under water

Rough surfaces immersed under water remain practically dry if the liquid-solid contact is on roughness peaks, while the roughness valleys are filled with gas. Mechanisms that prevent water from invading the valleys are well studied. However, to remain practically dry under water, additional mechanisms need consideration. This is because trapped gas (e.g. air) in the roughness valleys can dissol...

Sustaining Collusion under Economic Integration

In this paper, we aim at investigating from a game theory perspective whether trade liberalization can promote a collusive intra-industry trade and whether such a collusive trade is always socially desirable compared to the autarchy solution. We show that, under Cournot competition, economic integration is anti-competitive if collusive trade is a possible outcome of the repeated game; under pri...

Performance sustaining intracortical neural prostheses.

OBJECTIVE Neural prostheses, or brain-machine interfaces, aim to restore efficient communication and movement ability to those suffering from paralysis. A major challenge these systems face is robust performance, particularly with aging signal sources. The aim in this study was to develop a neural prosthesis that could sustain high performance in spite of signal instability while still minimizi...

Operational Performance Assessment