Dynamic queue length thresholds for multiple loss priorities
IEEE/ACM Transactions on Networking (TON)
Dynamic Control of a Multiclass Queue with Thin Arrival Streams
Operations Research
IEEE Transactions on Wireless Communications
Analysis of throughput and fairness with downlink scheduling in WCDMA networks
IEEE Transactions on Wireless Communications
Opportunistic Grassmannian Beamforming for Multiuser and Multiantenna Downlink Communications
IEEE Transactions on Wireless Communications
On the capacity of MIMO broadcast channels with partial side information
IEEE Transactions on Information Theory
Cross-layer design for wireless networks
IEEE Communications Magazine
Cross-layer enhancement for wlan systems with heterogeneous traffic based on DQCA
IEEE Communications Magazine
Dynamic power allocation and routing for time-varying wireless networks
IEEE Journal on Selected Areas in Communications
A Practical Layer 3 Admission Control and Adaptive Scheduling (L3-ACAS) for COTS WLANs
Wireless Personal Communications: An International Journal
Multi-rate control policies for elastic traffic in CDMA networks
Performance Evaluation
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The use of real-time delay-sensitive applications in wireless systems has significantly grown during the last years. Therefore the designers of wireless systems have faced a challenging issue to guarantee the required Quality of Service (QoS). On the other hand, the recent advances and the extensive use of multiple antennas have already been included in several commercial standards, where the multibeam opportunistic transmission beamforming strategies have been proposed to improve the performance of the wireless systems. A cross-layer-based dynamically tuned queue length scheduler is presented in this paper, for the Downlink of multiuser and multiantenna WLAN systems with heterogeneous traffic requirements. To align with modern wireless systems transmission strategies, an opportunistic scheduling algorithm is employed, while a priority to the different traffic classes is applied. A tradeoff between the maximization of the throughput of the system and the guarantee of the maximum allowed delay is obtained. Therefore, the length of the queue is dynamically adjusted to select the appropriate conditions based on the operator requirements.