“…for contention-based access and HCCA mode for contention-free access respectively. There are many schemes proposed for EDCA for enhanced QoS provisioning [52][53][54][55][56][57][58][59][60][61][62][63][64][65][66], however, HCCA is more competent in providing guaranteed QoS thanks to its contention-free nature. The HCCA reference scheme in the standard has very limited capabilities and only performs well under constant bit rate (CBR) traffic.…”
Section: Admission Control and Scheduling For Guaranteed Qos In A Scamentioning
confidence: 99%
“…EDCA is proposed as the substitute of the widely adopted DCF mode for QoS provisioning. To further improve the performance of EDCA and achieve better QoS, a number of studies have been proposed in the literature [52][53][54][55][56][57][58][59][60][61][62][63][64][65][66]. Although EDCA is favored for its distributed operation, it is hard to achieve deterministic QoS because no guarantee could be really achieved when…”
“…for contention-based access and HCCA mode for contention-free access respectively. There are many schemes proposed for EDCA for enhanced QoS provisioning [52][53][54][55][56][57][58][59][60][61][62][63][64][65][66], however, HCCA is more competent in providing guaranteed QoS thanks to its contention-free nature. The HCCA reference scheme in the standard has very limited capabilities and only performs well under constant bit rate (CBR) traffic.…”
Section: Admission Control and Scheduling For Guaranteed Qos In A Scamentioning
confidence: 99%
“…EDCA is proposed as the substitute of the widely adopted DCF mode for QoS provisioning. To further improve the performance of EDCA and achieve better QoS, a number of studies have been proposed in the literature [52][53][54][55][56][57][58][59][60][61][62][63][64][65][66]. Although EDCA is favored for its distributed operation, it is hard to achieve deterministic QoS because no guarantee could be really achieved when…”
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