NDLI: Realization and Performance Evaluation of IMS Multimedia Telephony for HSPA

Content Provider	IEEE Xplore Digital Library
Author	Wanstedt, S. Ericson, M. Sandlund, K. Nordberg, M. Frankkila, T.
Copyright Year	2006
Description	Author affiliation: Ericsson Res., Lulea (Wanstedt, S.; Ericson, M.; Sandlund, K.; Nordberg, M.; Frankkila, T.)
Abstract	The proposed voice over IP (VoIP) over HSPA solution targets high capacity as well as coverage and speech quality comparable to circuit switched (CS) speech. The VoIP over HSPA radio bearer realization includes one radio link control (RLC) un-acknowledged mode for the speech media. Parallel signaling radio bearers are also transmitted using HSPA access. Due to the flexibility of IP and HSPA, both narrow-band and wideband speech codecs work well. A delay sensitive scheduler is selected for the downlink transmission. For the uplink, the non-scheduled mode is selected. Coverage and quality can, with simulations, be shown to be at least as good as CS speech according to 3GPP ReI. 99 specifications. Similarly, capacity evaluations show that VoIP over HSPA has the potential of matching or exceeding CS speech capacity, depending on scenario. Finally, end to end simulations show that the maximum allowed delay of single links seldom occurs for uplink and downlink simultaneously, resulting in a lower perceived end-to-end delay than expected most of the time
Sponsorship	IEEE COM
Starting Page	1
Ending Page	5
File Size	109307
Page Count	5
File Format	PDF
ISBN	1424403294
DOI	10.1109/PIMRC.2006.254112
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-09-11
Publisher Place	Finland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Speech Internet telephony Downlink Delay effects RLC circuits Switching circuits Radio link Radio control Narrowband Wideband
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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