Multi-User Multimedia Resource Allocation Over Multi-Carrier Wireless Networks

The authors address the problem of multi-user video transmission over the uplink of multi-carrier networks from an information theoretic perspective. Under the constraints imposed by the underlying PHYsical (PHY) and Medium Access Control (MAC) layers, they exploit the unique property of state-of-the-art video coders that can provide inherent bit-stream prioritization in terms of distortion impact and solve the problem of allocating wireless resources, i.e., power/rate and sub-carrier assignment, among multiple users such that the weighted sum of the overall video qualities is maximized.