Scheduler Algorithm for IEEE802.11n Wireless LANs

Delay Performance Analysis of a Two-Stage Cross-Layer Scheduler for Wireless LANs

The transport of real-time data flows over wireless channels can be optimized by cross-layer schedulers which serve the different users dependent on their traffic load and channel state. This paper investigates the delay performance of a two-stage cross-layer scheduler which has been designed to meet the above requirements. The well-known Weighted Fair Queuing Scheduler can tramsmit packets wit...

Co-DRR: An Integrated Uplink and Downlink Scheduler for Bandwidth Management over Wireless LANs

Bandwidth management over wired bottleneck links has been an effective way to utilize network resources. For the rapidly emerging IEEE 802.11b Wireless LAN (WLAN), the limited WLAN bandwidth becomes a new bottleneck and requires bandwidth management. Most possible existing solutions only exclusively focus on optimizing multimedia traffic, pure downlink or pure uplink fairness, or are incompatib...

MAC Protocol Enhancements and A Distributed Scheduler for QoS Guarantees over the IEEE 802.11 Wireless LANs

In future wireless networks, different traffic classes will exhibit a large variety of characteristics and QoS requirements, such as transmission rate, maximum tolerable bit error rate and timeout specifications. However, currently there is no standard way of guaranteeing QoS in wireless access networks like Wireless LAN based on IEEE 802.11. In this paper, we propose medium access control prot...

A Study of Viterbi Decoder Algorithm for Wireless LANs

Viterbi Decoders are commonly used to decode convolutional codes in communications systems. This Viterbi Decoder is a fully parallel implementation which gives fast data throughput. The decoder is targeted for WiMAX and Wireless LAN applications. Input symbol metric pairs are decoded into output data bits by the maximum likelihood Viterbi processor core. Decoder supports both hard and soft inpu...

Wireless LANs