Performance evaluation and tuning of an IEEE 802.11 audio video multicast collision prevention mechanism
- PDF / 1,872,990 Bytes
- 15 Pages / 595.276 x 790.866 pts Page_size
- 66 Downloads / 219 Views
(0123456789().,-volV)(0123456789(). ,- volV)
Performance evaluation and tuning of an IEEE 802.11 audio video multicast collision prevention mechanism Ahmed Boujnoui1 • Luis Orozco Barbosa2 • Abdelkrim Haqiq1
Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Since the introduction of the original IEEE 802.11 medium access mechanism, the definition of the multicast access mechanism has been the subject of numerous amendments and standardization efforts. Over the past few years, the need for a reliable multicast mechanism has been spurred due to the increasing demand for audio/video services. It is widely accepted that the success of any new multicast mechanism will mainly depend on its ability on meeting the stringent Quality-of-Service (QoS) requirements of the audio/video services. Due to the fact that the multicast service will have to be integrated into the IEEE 802.11 protocol architecture, it is essential to evaluate its performance in a scenario comprising unicast and multicast services. In this paper, we undertake the performance evaluation of a Multicast Collision Prevention (MCP) mechanism recently introduced in the literature. Our main goal is twofold: (1) to show that the MCP mechanism properly responds to the needs of multicast audio/video services in the presence of multicast/unicast traffic: a must for any new mechanism to be considered by the standards bodies; and (2) to provide simple guidelines on tuning-up the main system parameters of the MCP mechanism. Our numerical and simulation results also evaluate the impact of the MCP mechanism over the performance of the unicast service. Our findings show the overall benefits of the MCP in terms of the QoS metrics reported for the multicast service and the key performance indicators of the unicast traffic. Keywords Bi-dimensional Markov chain Performance analysis DCF MCP Unicast Multicast
1 Introduction IEEE 802.11 Wireless Local Area Networks (WLANs) are the most widely implemented technology in the field of wireless access networks. The worldwide deployment IEEE 802.11-based hotspots together with the increasing demand for audiovisual services have spurred the need of enhancing the performance of the underlying channel
& Ahmed Boujnoui [email protected] Luis Orozco Barbosa [email protected] Abdelkrim Haqiq [email protected] 1
Computer, Networks, Mobility and Modeling Laboratory, FST, Hassan 1st University, Settat, Morocco
2
Albacete Research Institute of Informatics University of Castilla La Mancha (UCLM), 02071 Albacete, Spain
access mechanisms while keeping downward compatibility with the basic principles of operation [2, 20]. Mobile audiovisual (A/V) traffic is forecast to grow by around 50 percent annually through 2022 to account for 75% of all mobile data traffic. Due to the stringent requirements of A/V services, namely, short delays, high throughput and highly sensitive to losses [21], numerous enhancements to the original IEEE 802.11 Medium Access Control (MAC) mechanisms have been intro
Data Loading...
