A deadline-aware rate control scheme resolving oversubscription in wireless data center networks

Abstract

Recent studies show that the wireless technology could resolve the oversubscription issue in wireless data center networks (WDCNs). However, these works only focus on transmitting traffic flows at the top-of-rack (ToR) switch. In this paper, we propose a deadline-aware rate control scheme (DRCS) that detects the network congestion situation by considering the flow size, deadline, and the number of hops of the flows on each transmission path in WDCNs. The DRCS use the wireless link to distributes traffic among a pair of ToR switches (ToRs) to eliminate oversubscription of different layers in WDCNs. The performance of analytical and simulation results show that DRCS improves bandwidth utilization to reduce the oversubscription problem.