Title :
Performance Evaluation of Deadline Monotonic Policy over 802.11 Throughput and Average Service Time
Author :
Korbi, Inès El ; Saidane, Leila Azouz
Author_Institution :
Univ. de la Manouba, Manouba
Abstract :
Real time applications are characterized by their delay bounds. To satisfy the Quality of Service (QoS) requirements of such flows over wireless communications, we enhance the 802.11 protocol to support the Deadline Mono- tonic (DM) scheduling policy. Then, we propose to evaluate the performance of DM in terms of saturation throughput and average medium access delay called average service time. Therefore, we develop a Markov chain based analytical model and derive expressions of the average MAC layer service time. Analytical results are validated against simulation results using the ns-2 network simulator (http://www.isi.edu/nsnam/ns/).
Keywords :
Markov processes; access protocols; performance evaluation; processor scheduling; quality of service; wireless LAN; 802.11 protocol; MAC layer service time; Markov chain; QoS requirements; average service time; deadline monotonic policy performance evaluation; deadline monotonic scheduling policy; delay bounds; medium access delay; ns-2 network simulator; quality of service; real time applications; wireless communications; Access protocols; Analytical models; Broadcasting; Delay effects; Delta modulation; Quality of service; Scheduling; Throughput; Wireless application protocol; Wireless communication; 802.11; Average Service Time; Deadline Monotonic; Performance Evaluation; Throughput;
Conference_Titel :
Networking, 2008. ICN 2008. Seventh International Conference on
Conference_Location :
Cancun
Print_ISBN :
978-0-7695-3106-9
Electronic_ISBN :
978-0-7695-3106-9
DOI :
10.1109/ICN.2008.99
