Fair scheduling in wireless packet networks
IEEE/ACM Transactions on Networking (TON)
Tradeoffs between low complexity, low latency, and fairness with deficit round-robin schedulers
IEEE/ACM Transactions on Networking (TON)
Opportunistic Scheduling of Delay Sensitive Traffic in OFDMA-BasedWireless
WOWMOM '06 Proceedings of the 2006 International Symposium on on World of Wireless, Mobile and Multimedia Networks
Performance Evaluation of the IEEE 802.16 MAC for QoS Support
IEEE Transactions on Mobile Computing
Integrated Downlink Resource Management for Multiservice WiMAX Networks
IEEE Transactions on Mobile Computing
Downlink Wireless Packet Scheduling with Deadlines
IEEE Transactions on Mobile Computing
Performance evaluation of admission control and adaptive modulation in OFDMA WiMax systems
IEEE/ACM Transactions on Networking (TON)
Scheduling in IEEE 802.16e Mobile WiMAX networks: key issues and a survey
IEEE Journal on Selected Areas in Communications - Special issue on broadband access networks: Architectures and protocols
On the performance of "compensation-based" and "Greedy" scheduling policies in IEEE 802.16 networks
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
IEEE Transactions on Wireless Communications
Efficient two-dimensional data allocation in IEEE 802.16 OFDMA
INFOCOM'10 Proceedings of the 29th conference on Information communications
WCFQ: an opportunistic wireless scheduler with statistical fairness bounds
IEEE Transactions on Wireless Communications
Providing quality of service over a shared wireless link
IEEE Communications Magazine
Transmit power adaptation for multiuser OFDM systems
IEEE Journal on Selected Areas in Communications
MPEG-4 and H.263 video traces for network performance evaluation
IEEE Network: The Magazine of Global Internetworking
| Hi-index | 0.24 |
The IEEE 802.16 is a standard for fixed and mobile Broadband Wireless Access (BWA). In this paper, we deal with two key challenges of 802.16-based networks. First, terminals close to cell edge experience poor channel quality, due to severe path-loss and high interference from concurrent transmissions in nearby cells. To address this issue, we propose a framework based on a static partitioning of bandwidth into chunks with different transmission power levels. Terminals with impaired channel conditions can then benefit from being allocated a higher amount of transmission power than the others. Secondly, transmissions should be scheduled according to Quality of Service (QoS) requirements to keep users with real-time video or voice calls satisfied, while best-effort connections should fairly share the remaining capacity. To this aim, we propose a scheduling algorithm, called Power-aware Opportunistic Downlink Scheduling (PODS), that aims at meeting both the QoS and fairness requirements, while taking into account the different power levels of the bandwidth chunks. The performance of the proposed scheduler is assessed through detailed packet-level simulation in realistic scenarios and compared with well-known scheduling algorithms. Results confirm that PODS is able to exploit power boosting to provide real-time connections with the desired level of QoS, irrespectively of their MSs' channel quality.