ROHC and aggregated VoIP over fixed WiMAX: An empirical evaluation

Esa Piri, Jarno Pinola, Frerk Fitzek, Kostas Pentikousis

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

12 Citations (Scopus)

Abstract

WiMAX has been at the center of attention in wireless communications during the last years. Nonetheless, very few testbed or field trial measurement accounts have been reported in the peer-reviewed literature. We fill this gap by exploring scenarios where fixed WiMAX is employed for VoIP traffic. VoIP packets typically exhibit large header overheads and small total packet sizes. The actual codec payload per packet is very small compared to the total length of headers appended to each voice frame. RObust Header Compression (ROHC) can significantly decrease header size by capitalizing on static or rarely changing header fields. Aggregating multiple voice frames into one packet is another attractive and effective way to increase application goodput and overall bandwidth utilization. We study the effect of ROHC and application layer aggregation on VoIP performance in a fixed WiMAX testbed consisting of one base station and two subscriber stations. We find that ROHC increases the number of simultaneous bidirectional emulated VoIP flows by 6% when compared to plain VoIP. When aggregation and ROHC are employed in unison, they allow for 86% more flows than standard VoIP to be sustained in our testbed.
Original languageEnglish
Title of host publicationProceedings of the IEEE Symposium on Computers and Communications
Place of PublicationMarrakech, Morocco
PublisherInstitute of Electrical and Electronic Engineers IEEE
Pages1141-1146
ISBN (Print)978-1-4244-2702-4
DOIs
Publication statusPublished - 2008
MoE publication typeA4 Article in a conference publication

Fingerprint

Testbeds
Agglomeration
Base stations
Bandwidth
Communication

Cite this

Piri, E., Pinola, J., Fitzek, F., & Pentikousis, K. (2008). ROHC and aggregated VoIP over fixed WiMAX: An empirical evaluation. In Proceedings of the IEEE Symposium on Computers and Communications (pp. 1141-1146). Marrakech, Morocco: Institute of Electrical and Electronic Engineers IEEE. https://doi.org/10.1109/ISCC.2008.4625650
Piri, Esa ; Pinola, Jarno ; Fitzek, Frerk ; Pentikousis, Kostas. / ROHC and aggregated VoIP over fixed WiMAX: An empirical evaluation. Proceedings of the IEEE Symposium on Computers and Communications. Marrakech, Morocco : Institute of Electrical and Electronic Engineers IEEE, 2008. pp. 1141-1146
@inproceedings{e2217c028b96495e9cb665a66efd6372,
title = "ROHC and aggregated VoIP over fixed WiMAX: An empirical evaluation",
abstract = "WiMAX has been at the center of attention in wireless communications during the last years. Nonetheless, very few testbed or field trial measurement accounts have been reported in the peer-reviewed literature. We fill this gap by exploring scenarios where fixed WiMAX is employed for VoIP traffic. VoIP packets typically exhibit large header overheads and small total packet sizes. The actual codec payload per packet is very small compared to the total length of headers appended to each voice frame. RObust Header Compression (ROHC) can significantly decrease header size by capitalizing on static or rarely changing header fields. Aggregating multiple voice frames into one packet is another attractive and effective way to increase application goodput and overall bandwidth utilization. We study the effect of ROHC and application layer aggregation on VoIP performance in a fixed WiMAX testbed consisting of one base station and two subscriber stations. We find that ROHC increases the number of simultaneous bidirectional emulated VoIP flows by 6{\%} when compared to plain VoIP. When aggregation and ROHC are employed in unison, they allow for 86{\%} more flows than standard VoIP to be sustained in our testbed.",
author = "Esa Piri and Jarno Pinola and Frerk Fitzek and Kostas Pentikousis",
year = "2008",
doi = "10.1109/ISCC.2008.4625650",
language = "English",
isbn = "978-1-4244-2702-4",
pages = "1141--1146",
booktitle = "Proceedings of the IEEE Symposium on Computers and Communications",
publisher = "Institute of Electrical and Electronic Engineers IEEE",
address = "United States",

}

Piri, E, Pinola, J, Fitzek, F & Pentikousis, K 2008, ROHC and aggregated VoIP over fixed WiMAX: An empirical evaluation. in Proceedings of the IEEE Symposium on Computers and Communications. Institute of Electrical and Electronic Engineers IEEE, Marrakech, Morocco, pp. 1141-1146. https://doi.org/10.1109/ISCC.2008.4625650

ROHC and aggregated VoIP over fixed WiMAX: An empirical evaluation. / Piri, Esa; Pinola, Jarno; Fitzek, Frerk; Pentikousis, Kostas.

Proceedings of the IEEE Symposium on Computers and Communications. Marrakech, Morocco : Institute of Electrical and Electronic Engineers IEEE, 2008. p. 1141-1146.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

TY - GEN

T1 - ROHC and aggregated VoIP over fixed WiMAX: An empirical evaluation

AU - Piri, Esa

AU - Pinola, Jarno

AU - Fitzek, Frerk

AU - Pentikousis, Kostas

PY - 2008

Y1 - 2008

N2 - WiMAX has been at the center of attention in wireless communications during the last years. Nonetheless, very few testbed or field trial measurement accounts have been reported in the peer-reviewed literature. We fill this gap by exploring scenarios where fixed WiMAX is employed for VoIP traffic. VoIP packets typically exhibit large header overheads and small total packet sizes. The actual codec payload per packet is very small compared to the total length of headers appended to each voice frame. RObust Header Compression (ROHC) can significantly decrease header size by capitalizing on static or rarely changing header fields. Aggregating multiple voice frames into one packet is another attractive and effective way to increase application goodput and overall bandwidth utilization. We study the effect of ROHC and application layer aggregation on VoIP performance in a fixed WiMAX testbed consisting of one base station and two subscriber stations. We find that ROHC increases the number of simultaneous bidirectional emulated VoIP flows by 6% when compared to plain VoIP. When aggregation and ROHC are employed in unison, they allow for 86% more flows than standard VoIP to be sustained in our testbed.

AB - WiMAX has been at the center of attention in wireless communications during the last years. Nonetheless, very few testbed or field trial measurement accounts have been reported in the peer-reviewed literature. We fill this gap by exploring scenarios where fixed WiMAX is employed for VoIP traffic. VoIP packets typically exhibit large header overheads and small total packet sizes. The actual codec payload per packet is very small compared to the total length of headers appended to each voice frame. RObust Header Compression (ROHC) can significantly decrease header size by capitalizing on static or rarely changing header fields. Aggregating multiple voice frames into one packet is another attractive and effective way to increase application goodput and overall bandwidth utilization. We study the effect of ROHC and application layer aggregation on VoIP performance in a fixed WiMAX testbed consisting of one base station and two subscriber stations. We find that ROHC increases the number of simultaneous bidirectional emulated VoIP flows by 6% when compared to plain VoIP. When aggregation and ROHC are employed in unison, they allow for 86% more flows than standard VoIP to be sustained in our testbed.

U2 - 10.1109/ISCC.2008.4625650

DO - 10.1109/ISCC.2008.4625650

M3 - Conference article in proceedings

SN - 978-1-4244-2702-4

SP - 1141

EP - 1146

BT - Proceedings of the IEEE Symposium on Computers and Communications

PB - Institute of Electrical and Electronic Engineers IEEE

CY - Marrakech, Morocco

ER -

Piri E, Pinola J, Fitzek F, Pentikousis K. ROHC and aggregated VoIP over fixed WiMAX: An empirical evaluation. In Proceedings of the IEEE Symposium on Computers and Communications. Marrakech, Morocco: Institute of Electrical and Electronic Engineers IEEE. 2008. p. 1141-1146 https://doi.org/10.1109/ISCC.2008.4625650