Meeting connected vehicle application requirements: it's not just about bandwidth

The growing popularity of connected vehicles is driving the development of a new class of latency-sensitive applications. The applications can benefit from edge clouds but they need timely responses to their requests. For applications based on video and other sensor data, this necessitates high burst throughput from the network, which results in a challenging scheduling problem since applications have diverse request sizes, rates, and deadlines. While the problem of managing latency sensitive bursty traffic has been considered in data centers, wireless networks use variable bit rates, which further exacerbates the problem. In this paper, we first use simple examples to show that traditional network fairness and quality-of-service (QoS) solutions are not appropriate for latency sensitive applications using cloud services at the wireless edge. We then sketch a possible solution that addresses the challenges of combining Service Level Agreements that focus on burst transfers with a network scheduler that is resource-aware. Finally, we use a simplified network, namely Wi-Fi based emulation, to show how our approach enables both the network administrator and applications to meet their goals.