TY - GEN
T1 - Squeezing 100+ VoIP calls out of 802.11b WLANs
AU - Yun, Sangki
AU - Kim, Hyogon
AU - Kang, Inhye
PY - 2006
Y1 - 2006
N2 - To solve the poor bandwidth efficiency problem of VoIP over IEEE 802.11 wireless LANs (WLANs), the literature frequently suggests elongating voice payload size. Such "voice frame aggregation" can be performed (1) over a single call or multiple calls, (2) at the voice source or at the wireless access point (AP), and (3) with additional repacketization delay or without it. This paper shows that over IEEE 802.11 WLANs, voice frame aggregation should better be done at the AP, over a single call, and without additional delay. We demonstrate through simulation and analysis that this particular implementation choice enables us to support far more VoIP calls on 802.11 WLANs than other choices. For one instance, we show that 100 or more G.729 calls are possible on 802.11b within ITU-T recommended delay bounds.
AB - To solve the poor bandwidth efficiency problem of VoIP over IEEE 802.11 wireless LANs (WLANs), the literature frequently suggests elongating voice payload size. Such "voice frame aggregation" can be performed (1) over a single call or multiple calls, (2) at the voice source or at the wireless access point (AP), and (3) with additional repacketization delay or without it. This paper shows that over IEEE 802.11 WLANs, voice frame aggregation should better be done at the AP, over a single call, and without additional delay. We demonstrate through simulation and analysis that this particular implementation choice enables us to support far more VoIP calls on 802.11 WLANs than other choices. For one instance, we show that 100 or more G.729 calls are possible on 802.11b within ITU-T recommended delay bounds.
UR - http://www.scopus.com/inward/record.url?scp=33845936617&partnerID=8YFLogxK
U2 - 10.1109/WOWMOM.2006.104
DO - 10.1109/WOWMOM.2006.104
M3 - Conference contribution
AN - SCOPUS:33845936617
SN - 0769525938
SN - 9780769525938
T3 - Proceedings - WoWMoM 2006: 2006 International Symposium on a World of Wireless, Mobile and Multimedia Networks
SP - 308
EP - 314
BT - Proceedings - WoWMoM 2006
T2 - WoWMoM 2006: 2006 International Symposium on a World of Wireless, Mobile and Multimedia Networks
Y2 - 26 June 2006 through 29 June 2006
ER -