Path diversity over packet switched networks: performance analysis and rate allocation
IEEE/ACM Transactions on Networking (TON)
Network adaptive layered multicast for heterogeneous wireless ad hoc networks
Journal of Mobile Multimedia
Multi-description multipath video streaming in wireless ad hoc networks
Image Communication
Exploiting multiple description coding for intermediate recovery in wireless mesh networks
Journal of Network and Computer Applications
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We study the problem of multipath routing for double description (DD) video in wireless ad hoc networks. We follow an application-centric cross-layer approach and formulate an optimal routing problem that minimizes the application layer video distortion. We show that the optimization problem has a highly complex objective function and an exact analytic solution is not obtainable. However, we find that a meta-heuristic approach such as genetic algorithms (GAs) is eminently effective in addressing this type of complex cross-layer optimization problems. We provide a detailed solution procedure for the GA-based approach. Simulation results demonstrate the superior performance of the GA-based approach versus several other approaches. Our efforts in this work provide an important methodology for addressing complex cross-layer optimization problems, particularly those involved in the application and network layers