A simple recursive scheme for adjusting the contention window size in IEEE 802.11e wireless ad hoc networks

2006 ◽  
Vol 29 (18) ◽  
pp. 3789-3803 ◽  
Author(s):  
Hassan Artail ◽  
Haidar Safa ◽  
Joe Naoum-Sawaya ◽  
Bissan Ghaddar ◽  
Sami Khawam
Keyword(s):  
Ad Hoc Networks ◽  
Wireless Ad Hoc Networks ◽  
Ad Hoc ◽  
Window Size ◽  
Contention Window ◽  
Ieee 802.11E ◽  
Recursive Scheme ◽  
Contention Window Size ◽  
Hoc Networks

scholarly journals Adaptive Probabilistic Broadcasting over Dense Wireless Ad Hoc Networks

2010 ◽  
Vol 2010 ◽  
pp. 1-12 ◽  
Author(s):  
Victor Gau ◽  
Jenq-Neng Hwang
Keyword(s):  
Ad Hoc Networks ◽  
Wireless Ad Hoc Networks ◽  
Ad Hoc ◽  
Window Size ◽  
Data Broadcasting ◽  
Improve Performance ◽  
Packet Delivery ◽  
Elapsed Time ◽  
Contention Window Size ◽  
Hoc Networks

We propose an idle probability-based broadcasting method,iPro, which employs an adaptive probabilistic mechanism to improve performance of data broadcasting over dense wireless ad hoc networks. In multisource one-hop broadcast scenarios, the modeling and simulation results of the proposediProare shown to significantly outperform the standard IEEE 802.11 under saturated condition. Moreover, the results also show that without estimating the number of competing nodes and changing the contention window size, the performance of the proposediProcan still approach the theoretical bound. We further applyiProto multihop broadcasting scenarios, and the experiment results show that within the same elapsed time after the broadcasting, the proposediProhas significantly higher Packet-Delivery Ratios (PDR) than traditional methods.

Quality of Service in Wireless Ad-Hoc Networks and New Trends

2011 ◽  
pp. 254-280
Author(s):  
Sudhir K. Routray
Keyword(s):  
Quality Of Service ◽  
Ad Hoc Networks ◽  
Wireless Ad Hoc Networks ◽  
Ad Hoc ◽  
New Technologies ◽  
Ieee 802.11E ◽  
Overall Performance ◽  
Hoc Networks

This chapter introduces basic needs of quality of Service (QoS) of RF ad hoc networks (mainly wireless), presents the main metrics of quality of service and the QoS effects on overall performance, and briefly discusses quality of service of wireless systems with respect to the upcoming new technologies like 3GPP LTE and the role of WLAN, while representing network QoS improvement and optimization tools and their successful applications in performance analysis. The chapter focuses on IEEE 802.11e, the main revision of the 802.11 for better QoS provisioning, as well as the coordination between planning and the performance of systems for better QoS. Additionally, it addresses the current and new trends of QoS stuff for different cellular networks and their impact on the QoS of ad-hoc networks. The chapter also explores new trends of QoS of emerging networks like the WiMAX and 4G and looks to the probable hybrid networks of the future and their QoS aspects.

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