Cross Layer Design for Video Transmissions in Metro Passenger Information Systems

Author

Zhu, Li ; Yu, F. Richard ; Ning, Bing

Author_Institution

State Key Lab. of Rail Traffic Control & Safety, Beijing Jiaotong Univ., Beijing, China

fYear

2010

fDate

6-10 Dec. 2010

Firstpage

1

Lastpage

5

Abstract

In metro Passenger Information Systems (PISs), frequent train handoffs can cause severe video distortion. In this paper, we take an integrated design approach to jointly optimize application layer parameters and handoff decisions to improve video transmission quality over PISs. We present a train-ground video communication network based on fountain codes and IEEE 802.11p for metro PISs. The handoff decision and application layer parameters adaptation problem is formulated as a stochastic semi-Markov Decision Process (SMDP). Minimizing the end-to-end total video distortion is the objective in our model. Simulation results show that the proposed SMDP based optimization algorithm can significantly improve the end-to-end video transmission quality in metro PISs.

Keywords

Markov processes; optimisation; public information systems; railway communication; video coding; video communication; wireless LAN; IEEE 802.11p; SMDP; application layer parameter adaptation problem; cross layer design; end-to-end video transmission quality; fountain code; handoff decision; metro PIS; metro passenger information system; optimization; stochastic semiMarkov decision process; train-ground video communication network; video distortion; Adaptation model; Communication networks; Markov processes; Optimization; Signal to noise ratio; Streaming media; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference (GLOBECOM 2010), 2010 IEEE

Conference_Location

Miami, FL

ISSN

1930-529X

Print_ISBN

978-1-4244-5636-9

Electronic_ISBN

1930-529X

Type

conf

DOI

10.1109/GLOCOM.2010.5684174

Filename

5684174