Improving the radio link layer QoS performance for Bluetooth real-time video communications

Author

Chen, Zhikui ; Christ, Paul

Author_Institution

Computer Center, Stuttgart Univ., Germany

fYear

2005

fDate

April 28-30, 2005

Firstpage

106

Lastpage

111

Abstract

This paper investigates the quality of service (QoS) performance over a Bluetooth radio link for real-time video communications. A bit error control algorithm is proposed for protecting the bit error sensitive data of the latest video codecs as well as the compressed protocol headers. Bit errors and erroneous PDU delivery are analyzed in a Bluetooth link. UDP-Lite and robust protocol header compression (RoHC) are used and integrated into the trial testbed. By sacrificing a small amount of bandwidth in the Bluetooth link, simulations have shown a significant improvement in the video quality in terms of PSNR as demonstrated by some sample video images.

Keywords

Bluetooth; data compression; error correction codes; error statistics; image sampling; quality of service; radio links; real-time systems; transport protocols; video codecs; video coding; video communication; Bluetooth radio link; PDU; QOS performance; RoHC; UDP-Lite; bit error control algorithm; protocol data unit; quality of service; real-time video communication; robust protocol header compression; user datagram protocol; video codec; video image sample; Bluetooth; Error correction; Error correction codes; Protection; Protocols; Quality of service; Radio link; Robustness; Video codecs; Video compression;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Telecommunications Symposium, 2005

Print_ISBN

0-7803-8856-9

Type

conf

DOI

10.1109/WTS.2005.1524773

Filename

1524773