Probabilistic Resource Allocation under Opportunistic Scheduling in Wireless Networks with Multimedia Services

In this paper opportunistic scheduling to achieve high throughput, while at the same time satisfy both long-term and short-term users´ QoS constraints in wireless networks supporting multimedia services is adopted. This is achieved via the transformation of the corresponding QoS constraints into appropriate probabilities of accessing the systems´ recourses. The users´ scheduling procedure considering their corresponding access probabilities is obtained through a new proposed scheduling policy which allocates them fixed weights, initially computed, under the assumption of Rayleigh channels. The derived users´ weights ratios force the opportunistic scheduling policy to meet the users´ desired access probabilities and thus satisfy their respective QoS requirements.