Dual queue based rate selecting schedule for throughput enhancement in WLANs

Dongwan Kim, Wan Seon Lim, Jongsun Park

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

In IEEE 802.11 WLANs, a fixed low transmission rate is used for multicast transmissions regardless of channel conditions of receivers. This may lead to inefficient use of wireless channel, especially when access point (AP) has both unicast and multicast data frames in the transmission queue. In this paper, we propose a dual queue based rate selecting schedule scheme for efficient use of wireless channel. In contrast to the legacy WLAN AP having a single FIFO queue, AP in the proposed scheme maintains two separate queues at the AP, one for unicast data and another for multicast data. When the AP accesses wireless channel, it decides a type of data (unicast or multicast) and transmission rate to be sent according to the channel condition and the delay boundary of multicast data. Our simulation results show that the proposed scheme increases the average data rate and energy consumption saving up to 13.7% compared to the auto rate fallback (ARF) which determines the transmission data rate only considering the channel condition.

Original languageEnglish
Pages540-543
Number of pages4
DOIs
Publication statusPublished - 2012
Event2012 IEEE International Symposium on Circuits and Systems, ISCAS 2012 - Seoul, Korea, Republic of
Duration: 2012 May 202012 May 23

Other

Other2012 IEEE International Symposium on Circuits and Systems, ISCAS 2012
CountryKorea, Republic of
CitySeoul
Period12/5/2012/5/23

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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    Kim, D., Lim, W. S., & Park, J. (2012). Dual queue based rate selecting schedule for throughput enhancement in WLANs. 540-543. Paper presented at 2012 IEEE International Symposium on Circuits and Systems, ISCAS 2012, Seoul, Korea, Republic of. https://doi.org/10.1109/ISCAS.2012.6272086