Name
Abstract | ||
|---|---|---|
In this letter, we consider the uplink random access problem in a wireless multimedia network (WMN) with audio, video, and best effort applications. Since these multimedia applications have different quality-of-service (QoS) requirements, we model their utilities with concave, step, and quasi-concave functions. We assume that the access point performs admission control and assigns transmission probabilities to the users for random access, based on solving a non-convex network utility maximization problem. We propose a novel enumeration algorithm to obtain the global optimal solution by solving a number of computationally tractable convex optimization problems. We characterize the total number of iterations of the algorithm analytically. Simulation results show that our proposed algorithm achieves a higher average network aggregate utility than a carrier sense multiple access (CSMA) scheme implemented in a slotted time system. |
Year | DOI | Venue |
|---|---|---|
2012 | 10.1109/WCL.2012.051112.120277 | IEEE Wireless Commun. Letters |
Keywords | Field | DocType |
Streaming media,Nickel,Wireless communication,Multimedia communication,Wireless sensor networks,Multiaccess communication,Convex functions | Radio resource management,Wireless network,Multiple Access with Collision Avoidance for Wireless,Mathematical optimization,Computer science,Computer network,Wireless Multimedia Extensions,Hidden node problem,Multimedia,Multi-frequency network,Channel access method,Random access | Journal |
Volume | Issue | ISSN |
1 | 4 | 2162-2337 |
Citations | PageRank | References |
11 | 0.79 | 7 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Man Hon Cheung | 1 | 342 | 21.02 |
| Amir Hamed Mohsenian Rad | 2 | 1681 | 159.83 |
| Vincent W. S. Wong | 3 | 1696 | 124.91 |
| Robert Schober | 4 | 8448 | 488.41 |