A rate control scheme for video streaming over wireless channels

Mohamed Hassan, Marwan M Krunz

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

Forward error correction (FEC) and automatic repeat request (ARQ) are typically used to improve the reliability of the wireless link. During fading periods, it is difficult to achieve strict delay guarantees using ARQ schemes alone. On the other hand, FEC can provide constant throughput and bounded delay. However, if designed for the worst channel conditions, this causes unnecessary overhead and reduces the maximum achievable throughput when the channel is in good conditions. The target video quality is greatly affected by the instantaneous playback buffer occupancy. Retransmissions of erroneous packets and the reduction in throughput due to FEC overhead can lead to playback buffer starvation. In this study, we introduce a scalable source-rate control scheme for video transmission over wireless packet networks. The scheme aims at maximizing the source bit rate at the encoder while preventing occurrences of starvation at the playback buffer. We carry out the analysis while taking into account the channel variations during video-frame transmission. We characterize the evolution of the transmission process by a finite-state Markov chain (FSMC) that facilitates the analysis. Then, we provide a time average expression that contains the key parameters of the proposed scalable scheme. In our scheme, the amount of frame scaling is optimized while guaranteeing certain delay and loss bounds. Simulation and numerical investigations are carried out to study the interactions among various key parameters and verify the adequacy of the analysis.

Original languageEnglish (US)
Title of host publicationGLOBECOM - IEEE Global Telecommunications Conference
Pages4071-4075
Number of pages5
Volume6
StatePublished - 2004
EventGLOBECOM'04 - IEEE Global Telecommunications Conference - Dallas, TX, United States
Duration: Nov 29 2004Dec 3 2004

Other

OtherGLOBECOM'04 - IEEE Global Telecommunications Conference
CountryUnited States
CityDallas, TX
Period11/29/0412/3/04

Fingerprint

Forward error correction
Video streaming
Throughput
Fading (radio)
Packet networks
Markov processes
Telecommunication links

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Hassan, M., & Krunz, M. M. (2004). A rate control scheme for video streaming over wireless channels. In GLOBECOM - IEEE Global Telecommunications Conference (Vol. 6, pp. 4071-4075). [WC42-2]

A rate control scheme for video streaming over wireless channels. / Hassan, Mohamed; Krunz, Marwan M.

GLOBECOM - IEEE Global Telecommunications Conference. Vol. 6 2004. p. 4071-4075 WC42-2.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hassan, M & Krunz, MM 2004, A rate control scheme for video streaming over wireless channels. in GLOBECOM - IEEE Global Telecommunications Conference. vol. 6, WC42-2, pp. 4071-4075, GLOBECOM'04 - IEEE Global Telecommunications Conference, Dallas, TX, United States, 11/29/04.
Hassan M, Krunz MM. A rate control scheme for video streaming over wireless channels. In GLOBECOM - IEEE Global Telecommunications Conference. Vol. 6. 2004. p. 4071-4075. WC42-2
Hassan, Mohamed ; Krunz, Marwan M. / A rate control scheme for video streaming over wireless channels. GLOBECOM - IEEE Global Telecommunications Conference. Vol. 6 2004. pp. 4071-4075
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