Name
Title | ||
|---|---|---|
Adaptive cross-layer resource optimization in heterogeneous wireless networks with multi-homing user equipments. |
Abstract | ||
|---|---|---|
In this paper, we investigate the resource allocation problemin time-varying heterogeneous wireless networks (HetNet) with multi-homing user equipments (UE). The stochastic optimization model is employed to maximize the network utility, which is defined as the difference between the HetNet's throughput and the total energy consumption cost. In harmony with the hierarchical architecture of HetNet, the problem of stochastic optimization of resource allocation is decomposed into two subproblems by the Lyapunov optimization theory, associated with the flow control in transport layer and the power allocation in physical (PHY) layer, respectively. For avoiding the signaling overhead, outdated dynamic information, and scalability issues, the distributed resource allocation method is developed for solving the two subproblems based on the primal-dual decomposition theory. After that, the adaptive resource allocation algorithm is developed to accommodate the timevarying wireless network only according to the current network state information, i.e. the queue state information (QSI) at radio access networks (RAN) and the channel state information (CSI) of RANs-UE links. The tradeoff between network utility and delay is derived, where the increase of delay is approximately linear in V and the increase of network utility is at the speed of 1/V with a control parameter V. Extensive simulations are presented to show the effectiveness of our proposed scheme. |
Year | DOI | Venue |
|---|---|---|
2016 | 10.1109/JCN.2016.000107 | JOURNAL OF COMMUNICATIONS AND NETWORKS |
Keywords | Field | DocType |
Cross-layer optimization,Lyapunov optimization theory,multi-homing resource allocation | Radio resource management,Wireless network,Stochastic optimization,Computer science,Computer network,Lyapunov optimization,Real-time computing,Network utility,Resource allocation,Heterogeneous network,Throughput,Distributed computing | Journal |
Volume | Issue | ISSN |
18 | 5 | 1229-2370 |
Citations | PageRank | References |
1 | 0.37 | 0 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Weihua Wu | 1 | 26 | 6.96 |
| Qinghai Yang | 2 | 321 | 54.82 |
| Bingbing Li | 3 | 7 | 5.36 |
| Kyung Sup Kwak | 4 | 1519 | 147.10 |