Title :
Bandwidth estimation for wireless video transmission
Author :
Zhao, Ji-An ; Li, Bo ; Ahmad, Ishfaq
Author_Institution :
Dept. of Comput. Sci., Hong Kong Univ. of Sci. & Technol., Kowloon, China
Abstract :
This work deals with layered video transmission over wireless networks. We focus on deriving the required bandwidth provisioning for each layered video given their respective QoS target. We model the layered video traffic by a discrete time batch Markovian arrival process (DBMAP) with marked transitions. We assume the link level behavior of the wireless channel can be modeled by a hidden Markov model (HMM), and the network supports automatic repeat request (ARQ) operation. We show that the video data transmission buffer can be modeled as a G/D/c queue with time dependent feedback, and propose to approximate the ARQ feedback traffic by an HMM modulated DBMAP process. Based on the effective bandwidth approach, we derive the required channel capacity for both the input video traffic and the ARQ feedback traffic in order to meet the given QoS targets.
Keywords :
automatic repeat request; channel capacity; hidden Markov models; multimedia communication; quality of service; radio networks; ARQ feedback traffic; G/D/c queue time dependent feedback; HMM link level modeling; HMM modulated DBMAP process; QoS target; automatic repeat request; bandwidth estimation; bandwidth provisioning; channel capacity; discrete time batch Markovian arrival process; hidden Markov model; input video traffic required capacity; layered video transmission; marked transition DBMAP; video data transmission buffer; wireless network video transmission; Automatic repeat request; Bandwidth; Channel capacity; Computer science; Data communication; Feedback; Hidden Markov models; Telecommunication traffic; Traffic control; Wireless networks;
Conference_Titel :
Multimedia and Expo, 2004. ICME '04. 2004 IEEE International Conference on
Print_ISBN :
0-7803-8603-5
DOI :
10.1109/ICME.2004.1394607
