Efficient Wireless Multicast Protocol with Orthogonal CTS Modulation Supporting Video Conferencing

Author

Wang, Ju ; Choi, Hongsik ; Hughes, Esther A. ; Tang, Yong

Author_Institution

Virginia Commonwealth Univ., Richmond, VA

fYear

2006

fDate

9-12 July 2006

Firstpage

1217

Lastpage

1220

Abstract

Multicast based video conferencing in wireless networks is recently receiving more and more attention. In this paper, we propose a novel linker-level protocol, multicast with orthogonal CTS (MOCTS) protocol, to provide efficient wireless multicast. Our approach uses orthogonal Walsh code to modulate CTS packets at different receiving nodes. The modulated CTSs are simultaneously transmitted and decoded at the source node, thus considerably reducing multicast CTS collisions. Simulation results show that the MOCTS protocol can reduce more than 20% in total transmission efforts

Keywords

decoding; modulation coding; multicast protocols; radio networks; teleconferencing; MOCTS; Walsh code; decoding; modulation; multicast based video conferencing; multicast-orthogonal CTS protocol; wireless network; Decoding; Modulation coding; Multiaccess communication; Multicast algorithms; Multicast protocols; Signal processing; Signal resolution; Videoconference; Wireless application protocol; Wireless networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia and Expo, 2006 IEEE International Conference on

Conference_Location

Toronto, Ont.

Print_ISBN

1-4244-0366-7

Electronic_ISBN

1-4244-0367-7

Type

conf

DOI

10.1109/ICME.2006.262756

Filename

4036825