TY - JOUR
T1 - Achieving maximal VoIP calls in 802.11 wireless networks
AU - Li, Jung Shian
AU - Kao, Hung Cheng
AU - Lin, Wu Han
N1 - Funding Information:
This work was supported in part by National Science Council under the Grants NSC 98-2219-E-006-010 and NSC 99-2219-E-006-011 .
PY - 2010/7/1
Y1 - 2010/7/1
N2 - IEEE 802.11b WLAN deployments have mushroomed in recent years. However, the original 802.11 MAC layer can not meet the requirements of modern wireless multimedia applications. Accordingly, the IEEE 802.15.3 standard has been proposed to increase the data rate in wireless multimedia applications whilst simultaneously reducing the cost and power consumption of the portable devices within the network. In this study, the 802.15.3 MAC protocol is implemented over an 802.11 WLAN. In implementing the 802.15.3 superframes, the timing functions are accomplished using high-resolution timers such that the traditional CSMA/CA protocol can be retained. It is shown that the emulated 802.15.3 MAC layer is capable of supporting 12 full-duplex voice calls or 24 half-duplex voice calls, which is consistent with the theoretical VoIP capacity of 802.11b WLANs.
AB - IEEE 802.11b WLAN deployments have mushroomed in recent years. However, the original 802.11 MAC layer can not meet the requirements of modern wireless multimedia applications. Accordingly, the IEEE 802.15.3 standard has been proposed to increase the data rate in wireless multimedia applications whilst simultaneously reducing the cost and power consumption of the portable devices within the network. In this study, the 802.15.3 MAC protocol is implemented over an 802.11 WLAN. In implementing the 802.15.3 superframes, the timing functions are accomplished using high-resolution timers such that the traditional CSMA/CA protocol can be retained. It is shown that the emulated 802.15.3 MAC layer is capable of supporting 12 full-duplex voice calls or 24 half-duplex voice calls, which is consistent with the theoretical VoIP capacity of 802.11b WLANs.
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U2 - 10.1016/j.comcom.2010.03.001
DO - 10.1016/j.comcom.2010.03.001
M3 - Article
AN - SCOPUS:77955275932
VL - 33
SP - 1296
EP - 1303
JO - Computer Communications
JF - Computer Communications
SN - 0140-3664
IS - 11
ER -