In this paper, we study a cross-layer and end-to-end optimization problem for the integrated wireless and wireline network that consists of one wireline core network and multiple wireless access networks. We consider joint end-to-end flow control/distribution at the transport and network layers and opportunistic scheduling at the data link and physical layers. We formulate a single stochastic optimization problem and solve it by using a dual approach and a stochastic sub-gradient algorithm. The developed algorithm can be implemented in a distributed way, vertically among communication layers and horizontally among all entities in the network, clearly showing what should be done at each layer and each entity and what parameters should be exchanged between layers and between entities. Numerical results show that our crosslayer and end-to-end optimization approach provides more efficient resource allocation than the conventional layered and separated optimization approach.
Bibliographical noteFunding Information:
This research is supported in part by Basic Science Research Program through the National Research Foundation (NRF) of Korea funded by the Ministry of Education, Science and Technology (2010-0021677) and by the Human Resources Development Program (No. 20104010100590) of the Korea Institute of Energy Technology Evaluation and Planning(KETEP) grant funded by the Korea Government Ministry of Knowledge Economy.
All Science Journal Classification (ASJC) codes
- Information Systems
- Computer Networks and Communications