Optimal route discovery for soft QOS provisioning in mobile ad hoc multimedia networks

Lei Huang; Feng Pan

doi:10.1117/12.733517

10 September 2007 Optimal route discovery for soft QOS provisioning in mobile ad hoc multimedia networks

Lei Huang, Feng Pan

Proceedings Volume 6777, Multimedia Systems and Applications X; 677704 (2007) https://doi.org/10.1117/12.733517
Event: Optics East, 2007, Boston, MA, United States

Abstract

In this paper, we propose an optimal routing discovery algorithm for ad hoc multimedia networks whose resource keeps changing, First, we use stochastic models to measure the network resource availability, based on the information about the location and moving pattern of the nodes, as well as the link conditions between neighboring nodes. Then, for a certain multimedia packet flow to be transmitted from a source to a destination, we formulate the optimal soft-QoS provisioning problem as to find the best route that maximize the probability of satisfying its desired QoS requirements in terms of the maximum delay constraints. Based on the stochastic network resource model, we developed three approaches to solve the formulated problem: A centralized approach serving as the theoretical reference, a distributed approach that is more suitable to practical real-time deployment, and a distributed dynamic approach that utilizes the updated time information to optimize the routing for each individual packet. Examples of numerical results demonstrated that using the route discovered by our distributed algorithm in a changing network environment, multimedia applications could achieve better QoS statistically.

Citation Download Citation

Lei Huang and Feng Pan "Optimal route discovery for soft QOS provisioning in mobile ad hoc multimedia networks", Proc. SPIE 6777, Multimedia Systems and Applications X, 677704 (10 September 2007); https://doi.org/10.1117/12.733517

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KEYWORDS

Multimedia

Stochastic processes

Convolution

Numerical analysis

Chemical elements

Diffraction

Estimation theory

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