Title :
Dynamic Scheduling for Wireless Data Center Networks
Author :
Yong Cui ; Hongyi Wang ; Xiuzhen Cheng ; Dan Li ; Yla-Jaaski, Antti
Author_Institution :
Dept. of Comput. Sci. & Technol., Tsinghua Univ., Beijing, China
Abstract :
Unbalanced traffic demands of different data center applications are an important issue in designing data center networks (DCN). In this paper, we present our exploratory investigation on a hybrid DCN solution of utilizing wireless transmissions in DCNs. Our work aims to solve the congestion problem caused by a few hot nodes to improve the global performance. We model the wireless transmissions in DCN by considering both the wireless interference and the adaptive transmission rate. Besides, both throughput and job completion time are considered to measure the impact of wireless transmissions on the global performance. Based on the model, we formulate the problem of channel allocation as an optimization problem. We also design an approximation algorithm with an approximation bound of 1/2 and a genetic algorithm to address the scheduling problem. A series of simulations are performed to evaluate and demonstrate the effectiveness of our wireless DCN scheme.
Keywords :
approximation theory; channel allocation; genetic algorithms; interference (signal); radio networks; telecommunication congestion control; telecommunication traffic; adaptive transmission rate; approximation algorithm; channel allocation; congestion problem; dynamic scheduling; genetic algorithm; hybrid DCN solution; optimization problem; traffic demand; wireless DCN scheme; wireless data center network; wireless interference; wireless transmission; Algorithm design and analysis; Channel allocation; Database systems; Genetic algorithms; Interference; Wireless communication; Data center networks; dynamic scheduling; evolutionary computing; genetic algorithms; wireless communication;
Journal_Title :
Parallel and Distributed Systems, IEEE Transactions on
DOI :
10.1109/TPDS.2013.5