ODMCA: An adaptive data mining control algorithm in multicarrier networks

Abstract

Multicarrier communication is a promising technique to effectively deliver high data rate and combat delay spread over fading channel, and adaptability is an inherent advantage of multicarrier communication systems. It can be implemented in online data streams. This paper addresses a significant problem in multicarrier networks that arises in data streaming scenarios, namely, today’s data mining is ill-equipped to handle data streams effectively, and pays little attention to the network stability and the fast response [ http://www-db.standford.edu/stream]. Furthermore, in analysis of massive data streams, the ability to process the data in a single pass, while using little memory, is crucial. For often the data can be transmitted faster than it can be stored or accessed from disks. To address the question, we present an adaptive control-theoretic explicit rate (ER) online data mining control algorithm (ODMCA) to regulate the sending rate of mined data, which accounts for the main memory occupancies of terminal nodes. This single-pass scheme considers limited memory space to process dynamic data streams, and also explores the adaptive capability, which is employed in a general network computation model for dynamic data streams. The proposed method uses a distributed proportional integrative plus derivative (PID) controller combined with data mining, where the control parameters can be designed to ensure the stability of the control loop in terms of sending rate of mined data. The basic PID approach for the computation network transmission is presented and z-transformation and Schur–Cohn stability test are used to achieve the stability criterion, which ensures the bounded rate allocation without steady state oscillation. We further show how the ODMCA can be used to design a controller, analyze the theoretical aspects of the proposed algorithm and verify its agreement with the simulations in the LAN case and the WAN case. Simulation results show the efficiency of our scheme in terms of high main memory occupancy, fast response of the main memory occupancy and of the controlled sending rates.