Video Transmission for Multi-Hop Networks Using IEEE 802.11 FHSS

Published

January 1, 2002

Author(s)

K Ban, Hamid Gharavi

Abstract

In many applications such as construction, manufacturing, ground robotic vehicles, and rescue operations, there are many issues that necessitate the capability of transmitting digital video and that such transmissions should be performed wirelessly and in an ad-hoc manner. Recently, we proposed an ad-hoc, cluster-based, multihop network architecture for video communications. For implementation, the IEEE 802.11 FHSS wireless LAN system using 2GFSK modulation has been deployed. To enhance the overall throughput rate for higher quality video communications, we present a performance evaluation of the IEEE 802.11 FHSS when 4GFSK modulation option is selected. Unfortunately, the 2 Mb/s system utilizing 4GFSK modulation is not very efficient in terms of RF range. Therefore, to improve its performance for multihop applications, a combination of diversity and non-coherent Viterbi based receiver is considered. For the video transmission part, we have considered a bitstream splitting technique together with a packet-based error protection strategy to combat packet drops undermultipath fading conditions. Finally, the paper presents the simulation results, including the effects of the receiver design and diversity on the quality of the received video signals.

Proceedings Title

Conference Proceedings: IEEE 2002 International Confernece on Image Processing

Volume

1

Conference Dates

September 22-25, 2002

Conference Title

IEEE International Conference on Image Processing

Pub Type

Conferences

Keywords

Ad-hoc Networks, cluster networks, IEEE 802.11b, packet-based coding, video streaming, wireless LAN (WLAN

Citation

Ban, K. and Gharavi, H. (2002), Video Transmission for Multi-Hop Networks Using IEEE 802.11 FHSS, Conference Proceedings: IEEE 2002 International Confernece on Image Processing (Accessed July 26, 2024)