Improvement on Network Capacity for Voice Services over HCCA

	This Article
	Subscribers, please Login Purchase article: $19 PDF IEEE Xplore Subscribers RSS feed
	Share
	Email this Article to a friend
	Bibliographic References
	ASCII Text BibTex RefWorks Procite/RefMan/Endnote
	Add to:
	Digg Furl Spurl Blink Simpy Google Del.icio.us Y!MyWeb
	Search
	Similar Articles Articles by Wenpeng Yuan Articles by Guangxi Zhu Articles by Gan Liu Articles by Di Wu

32nd IEEE Conference on Local Computer Networks (LCN 2007)

Dublin, Ireland

October 15-October 18

ISBN: 0-7695-3000-1

	ASCII Text	x
	Wenpeng Yuan, Guangxi Zhu, Gan Liu, Di Wu, "Improvement on Network Capacity for Voice Services over HCCA," Local Computer Networks, Annual IEEE Conference on, pp. 479-488, 32nd IEEE Conference on Local Computer Networks (LCN 2007), 2007.

	BibTex	x
	@article{ 10.1109/LCN.2007.41, author = {Wenpeng Yuan and Guangxi Zhu and Gan Liu and Di Wu}, title = {Improvement on Network Capacity for Voice Services over HCCA}, journal ={Local Computer Networks, Annual IEEE Conference on}, volume = {0}, year = {2007}, issn = {0742-1303}, pages = {479-488}, doi = {http://doi.ieeecomputersociety.org/10.1109/LCN.2007.41}, publisher = {IEEE Computer Society}, address = {Los Alamitos, CA, USA}, }

	RefWorks Procite/RefMan/Endnote	x
	TY - CONF JO - Local Computer Networks, Annual IEEE Conference on TI - Improvement on Network Capacity for Voice Services over HCCA SN - 0742-1303 SP479 EP488 A1 - Wenpeng Yuan, A1 - Guangxi Zhu, A1 - Gan Liu, A1 - Di Wu, PY - 2007 KW - VoIP; HCCA; WLAN; 802.11e VL - 0 JA - Local Computer Networks, Annual IEEE Conference on ER -

Wenpeng Yuan, Huazhong University of Science and Technology, China

Guangxi Zhu, Huazhong University of Science and Technology, China

Gan Liu, Huazhong University of Science and Technology, China

Di Wu, Huazhong University of Science and Technology, China

DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/LCN.2007.41

In the 802.11e protocol, voices traffic takes a higher priority than other services. However, there are still some technical problems existing in VoIP services over WLAN: (a) low voice capacity caused by the inherent characteristic of WLAN and heavy packet headers from upper layers and (b) unacceptable voice delay in the presence of coexisting with other applications. To address these problems, in this paper we propose several schemes to better manage the limited network capacity of VoIP network. In the proposed schemes, every voice stream occupies a fixed bandwidth to avoid collision between packets. With the Packet Header Compression technology, the overhead of voice packets is greatly reduced. Under various PHY rates, we investigate the performance of our proposed scheme over various voice codecs. Compared to HCCA, the proposed scheme greatly advances the maximum throughput of voice streams.

Index Terms:

VoIP; HCCA; WLAN; 802.11e

Citation:

Wenpeng Yuan, Guangxi Zhu, Gan Liu, Di Wu, "Improvement on Network Capacity for Voice Services over HCCA," lcn, pp.479-488, 32nd IEEE Conference on Local Computer Networks (LCN 2007), 2007

Peer Review Notice | Give Us Feedback

Usage of this product signifies your acceptance of the Terms of Use.