TY - GEN
T1 - Dynamic multi-user access scheme for IEEE 802.11 WLAN channels
AU - Makhlouf, Arafet Ben
AU - Hamdi, Mounir
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/9/22
Y1 - 2014/9/22
N2 - New PHY and MAC layer enhancements have been introduced in different IEEE 802.11 WLAN standards. These improvements have given birth to a wide range of bandwidth channels (up to 160MHz) and very high transmission data rates (> 1Gbps) to keep up with current and up-coming multimedia applications. The major reason for the inefficiency of different WLANs is that the current MAC layer randomly allocates the entire channel to only one user as a single resource. Thus, one way to significantly improve WLAN performance is to effectively reduce the channel width and create different sized sub-channels. Based on the user's channel conditions and QoS requirements, the PHY layer resources can be dynamically allocated to several users at the same time. In this paper, we present a novel dynamic sub-channels access approach, titled DMU-Access1, with new features suitable for the forthcoming large bandwidth WLAN products. We shall evaluate its performance compared to state-of-the-art systems, using the simulator NS-3 under a variety of network conditions. Our experiments will then demonstrate that our scheme enhances IEEE 802.11 devices' performance with a much higher degree of throughput.
AB - New PHY and MAC layer enhancements have been introduced in different IEEE 802.11 WLAN standards. These improvements have given birth to a wide range of bandwidth channels (up to 160MHz) and very high transmission data rates (> 1Gbps) to keep up with current and up-coming multimedia applications. The major reason for the inefficiency of different WLANs is that the current MAC layer randomly allocates the entire channel to only one user as a single resource. Thus, one way to significantly improve WLAN performance is to effectively reduce the channel width and create different sized sub-channels. Based on the user's channel conditions and QoS requirements, the PHY layer resources can be dynamically allocated to several users at the same time. In this paper, we present a novel dynamic sub-channels access approach, titled DMU-Access1, with new features suitable for the forthcoming large bandwidth WLAN products. We shall evaluate its performance compared to state-of-the-art systems, using the simulator NS-3 under a variety of network conditions. Our experiments will then demonstrate that our scheme enhances IEEE 802.11 devices' performance with a much higher degree of throughput.
KW - Dynamic Resource Allocation
KW - IEEE 802.11 Standards
KW - Multi-User
KW - OFDM
KW - Scheduling
KW - Sub-channels
UR - http://www.scopus.com/inward/record.url?scp=84908638639&partnerID=8YFLogxK
U2 - 10.1109/IWCMC.2014.6906326
DO - 10.1109/IWCMC.2014.6906326
M3 - Conference contribution
AN - SCOPUS:84908638639
T3 - IWCMC 2014 - 10th International Wireless Communications and Mobile Computing Conference
SP - 18
EP - 23
BT - IWCMC 2014 - 10th International Wireless Communications and Mobile Computing Conference
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th International Wireless Communications and Mobile Computing Conference, IWCMC 2014
Y2 - 4 August 2014 through 8 August 2014
ER -