Resource Allocation for Semi-Elastic Applications With Outage Constraints in Cellular Networks

Abstract

Abstract-We consider resource allocation for semi-elastic applications, such as mobile video-conferencing, which require a maximum outage. We represent the performance of a session by a sigmoid utility function of the average bit rate over a time window consisting of many slots. The goal is to maximize the total expected utility of all active users. A principal challenge is the difference in time scales: outage is measured over sessions while average bit rate is measured over a time window such as a group of pictures. We propose that these differences in time scale can be elegantly addressed by shadow prices: a price per unit average rate over each time window and a price per unit outage. We further propose that the price per unit average rate depends on combined pathloss and shadowing, but not on fast fading. We show that resources can be efficiently allocated if the base station chooses prices based on total demand and the users respond by choosing average rates. The performance of our algorithm is illustrated by simulation results.

Utility function design for strategic radio resource management games: An overview, taxonomy, and research challenges

“…For mixed traffic, presented a utility‐based resource allocation for mixed traffic with integrative consideration of QoS and spectrum efficiency. For semi‐elastic applications, eg, mobile video conferences, Yang and Jordan represented the performance of a session using a sigmoid utility function, which is a function of the average bit rate over a time window of many time slots. Utility functions of advanced games and emerging networks architectures : We concentrated on the utility function of the simple strategic game formulations; however, more advanced game models, eg, differential, Markovian, and Bayesian games are employed in wireless community, which need more complex utility function design with variety of features. There also exist some other kinds of game models, eg, repeated game, Stackelberg game, and evolutionary game .…”

A Novel Coordinated Connection Access Control and Resource Allocation Framework for 4G Wireless Networks

“…This causes outage for some users far from the base station. Such outage can be addressed by adding an outage constraint that can be efficiently enforced by adding an outage price to the rate price; see [37] for details.…”