Title :
Packet Size Variability Affects Collisions and Energy Efficiency in WLANs
Author :
Nguyen, Suong H. ; Vu, Hai L. ; Andrew, Lachlan L H
Author_Institution :
Centre for Adv. Internet Archit., Swinburne Univ., Melbourne, VIC, Australia
Abstract :
Wireless local area networks (WLANs) support a wide range of applications, with various packet sizes. This diversity is set to increase in 802.11e WLANs which effectively allow very large packets controlled by a transmission opportunity (TxOP) parameter. This paper demonstrates a new phenomenon which occurs as a result of this diversity: When a network carries some large packets and many small packets, the collision probability after a large packet is much larger than predicted by previous models. This can be important because collision probability determines the number of packet transmissions, and hence the energy consumption. We propose a candidate model which captures this effect.
Keywords :
Analytical models; Communications Society; Energy consumption; Energy efficiency; Internet; Media Access Protocol; Multiaccess communication; Personal digital assistants; Predictive models; Telecommunication traffic;
Conference_Titel :
Wireless Communications and Networking Conference (WCNC), 2010 IEEE
Conference_Location :
Sydney, Australia
Print_ISBN :
978-1-4244-6396-1
DOI :
10.1109/WCNC.2010.5506226
