Voice over wireless LAN via IEEE 802.16 wireless MAN and IEEE 802.11 wireless distribution system
Refereed conference paper presented and published in conference proceedings

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AbstractToday, IEEE 802.11 Wireless LANs (WLAN) have been widely deployed to provide wireless broadband access access in local areas such as campuses or of Most of the WLANs are connected to the back-bone via a wired distribution system (DS). IEEE 802.16 Wireless MANs (WMAN) aim to extend the wireless broadband access up to kilometers to facilitate the long-range "last-mile" solution. For short-range extension, IEEE 802.11 Wireless Distribution System (WDS) can be set up easily by connecting Access Points (AP) together toform multi-hop networks. This provides a quick, easy and low-cost solution up to hundreds meters. In this paper, we exam the capacity challenges in delivering voice traffic over WLANs which are connected to 1) IEEE 802.16 WMAN and 2) IEEE 802. 11 WDS. For 1), we show that the capacity is limited by the WLAN bottleneck and we propose a multiplex-multicast (M-M) scheme [1] to double the capacity. For 2), we show that the k-M scheme should also be adopted in WOS. This scheme can sufficiently improve the voice capacity up to 7 times (from 3 to 22 voice sessions) in a 4-hop RDS. To verify our simulation results in [2], we set up a real multi-hop WDS. Experimental measurements confirm that our proposed scheme can increase both the voice capacity and service coverage of WDS.
All Author(s) ListNg PC, Liew SC, Lin CL
Name of ConferenceInternational Conference on Wireless Networks, Communications and Mobile Computing
Start Date of Conference13/06/2005
End Date of Conference16/06/2005
Place of ConferenceMaui
Country/Region of ConferenceUnited States of America
Detailed descriptionorganized by IEEE,
Pages504 - 509
LanguagesEnglish-United Kingdom
Web of Science Subject CategoriesComputer Science; Computer Science, Information Systems; Telecommunications

Last updated on 2020-31-07 at 00:55