Also, to meet the high bandwidth and very stringent delay requirements of the hard real-time applications like video-conferencing, we have also implemented the enhanced QoS features of EDCA like TXOP-based frame-bursting with block-acknowledgement. In the frame-bursting scheme, after winning the channel only once through a single EDCA
contention procedure, multiple MAC frames are transmitted by the ݅௧access category ܣܥduring its ܱܶܺܲூtime, in a single frame frame-burst. Standard EDCA would have required multiple EDCA contentions, for these frames. Every such contention would have needed its own AIFS channel sensing, random back-off, RTS and CTS overheads.By saving all such overheads, the proposed scheme enhances the throughput and delay performance of all ACs and also improves the system performance. Also, in the frame-bursting with block-acknowledgement scheme, after receiving a block acknowledgement request from the sender ܣܥ, the receiver ܣܥsends only a single block- acknowledgement frame in bit-map form for all the MAC data frames to the original sender. This saves multiple acknowledgements overheads and further improves systems performance.