A cross-layer scheduling algorithm with QoS support in wireless networks

Scheduling plays an important role in providing quality of service (QoS) support to multimedia communications in various kinds of wireless networks, including cellular networks, mobile ad hoc networks, and wireless sensor networks. The authors propose a scheduling algorithm at the medium access cont...

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Vydáno v:IEEE transactions on vehicular technology Ročník 55; číslo 3; s. 839 - 847
Hlavní autoři: Qingwen Liu, Xin Wang, Giannakis, G.B.
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York IEEE 01.05.2006
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:
Adaptive modulation and coding (AMC)
Algorithms
Cellular
Cellular communication
Channels
cross-layer design
Fading
IEEE 802.16
Joints
Land mobile radio cellular systems
Media Access Protocol
Mobile ad hoc networks
Mobile communication
Multimedia communication
Priorities
Programmable control
Quality of service
quality of service (QoS)
Scheduling
Scheduling algorithm
Wireless networks
Wireless sensor networks
Worldwide Interoperability for Microwave Access (WiMAX)
ISSN:0018-9545, 1939-9359
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Shrnutí:Scheduling plays an important role in providing quality of service (QoS) support to multimedia communications in various kinds of wireless networks, including cellular networks, mobile ad hoc networks, and wireless sensor networks. The authors propose a scheduling algorithm at the medium access control (MAC) layer for multiple connections with diverse QoS requirements, where each connection employs adaptive modulation and coding (AMC) scheme at the physical (PHY) layer over wireless fading channels. Each connection is assigned a priority, which is updated dynamically based on its channel and service status; the connection with the highest priority is scheduled each time. The authors' scheduler provides diverse QoS guarantees, uses the wireless bandwidth efficiently, and enjoys flexibility, scalability, and low implementation complexity. Its performance is evaluated via simulations
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ISSN:0018-9545
1939-9359
DOI:10.1109/TVT.2006.873832