TY - GEN
T1 - Random-access scheduling with service differentiation in wireless networks
AU - Gupta, Piyush
AU - Sankarasubramaniam, Yogesh
AU - Stolyar, Alexander
PY - 2005
Y1 - 2005
N2 - Recent years have seen tremendous growth in the deployment of Wireless Local Area Networks (WLANs). An important design issue in such networks is that of distributed scheduling. The lack of centralized control leads to multiple users competing for channel access. This leads to significant throughput degradation. Existing approaches, such as the slotted Aloha protocol and IEEE 802.11 DCF, also fail to provide differentiated service to users. The upcoming IEEE 802.11e Enhanced DCF incorporates additional mechanisms to provide support for service differentiation. However, the level of differentiation achieved with these mechanisms is difficult to quantify. In this paper, we propose a class of distributed scheduling algorithms, Regulated Contention Medium Access Control (RCMAC), which provides dynamic prioritized access to users for service differentiation in a quantifiable manner. Furthermore, by regulating multi-user contention, RCMAC achieves higher throughput when traffic is bursty, as is typically the case. In addition to WLANs, the basic concepts of RCMAC have applications in ad hoc networks and emerging sensor networks.
AB - Recent years have seen tremendous growth in the deployment of Wireless Local Area Networks (WLANs). An important design issue in such networks is that of distributed scheduling. The lack of centralized control leads to multiple users competing for channel access. This leads to significant throughput degradation. Existing approaches, such as the slotted Aloha protocol and IEEE 802.11 DCF, also fail to provide differentiated service to users. The upcoming IEEE 802.11e Enhanced DCF incorporates additional mechanisms to provide support for service differentiation. However, the level of differentiation achieved with these mechanisms is difficult to quantify. In this paper, we propose a class of distributed scheduling algorithms, Regulated Contention Medium Access Control (RCMAC), which provides dynamic prioritized access to users for service differentiation in a quantifiable manner. Furthermore, by regulating multi-user contention, RCMAC achieves higher throughput when traffic is bursty, as is typically the case. In addition to WLANs, the basic concepts of RCMAC have applications in ad hoc networks and emerging sensor networks.
UR - http://www.scopus.com/inward/record.url?scp=25844470447&partnerID=8YFLogxK
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U2 - 10.1109/INFCOM.2005.1498461
DO - 10.1109/INFCOM.2005.1498461
M3 - Conference contribution
AN - SCOPUS:25844470447
SN - 0780389689
T3 - Proceedings - IEEE INFOCOM
SP - 1815
EP - 1825
BT - Proceedings - IEEE INFOCOM 2005. The Conference on Computer Communications - 24th Annual Joint Conference of the IEEE Computer and Communications Societies
A2 - Makki, K.
A2 - Knightly, E.
T2 - IEEE INFOCOM 2005
Y2 - 13 March 2005 through 17 March 2005
ER -