A NEW RELIABLE MULTICAST SCHEME FOR MULTIMEDIA APPLICATIONS IN WIRELESS ENVIRONMENT
With the constant development of multimedia technologies and mobile devices, the demand of transmitting multimedia streams to mobile devices will be one of the major applications in wireless networks. However, IEEE 802.11 does not support reliable multicast due to its inability to exchange ACKs with multiple recipients and the influence of signal interference, congestion and hidden terminal problems. It is not suitable for the real-time multimedia transmission in this environment. In this paper, we propose a new reliable multicast scheme to solve the above problems by using a three-layer scheme. Our simulation results show that the performance of the wireless network with this proposed reliable scheme is much better than the original 802.11 protocol. The loss rate of the packets transmitted in this reliable 802.11 environment decreased a lot and the throughput of this reliable wireless environment performed constantly well compared with the original 802.11 protocol for mobile nodes.
multimedia multicast reliable wlan
Wang Chaohui Li Yuhong Han Li Ma Jian
State Key Laboratory of Networking and Switching Technology,Beijing University of Posts and Telecomm Nokia Research Center, Beijin Nokia Research Center, Beijing
国际会议
北京
英文
744-748
2009-10-18（万方平台首次上网日期，不代表论文的发表时间）