Towards a Tractable Delay Analysis in Large Wireless Networks.

Meeting the diverse delay requirements of next-generation wireless communication networks is one of the most critical goals of wireless system design. Though the delay of point-to-point communications has been well investigated using classical queueing theory, the delay of multi-point to multi-point communications has not been explored in depth. The main technical difficulty lies in the interacting queues problem, in which the service rate is coupled with the statuses of other queues. In this article, we elaborate on the main challenges of delay analysis in large wireless networks. Several promising approaches to bypass these difficulties are proposed and summarized to provide useful guidance.