Rate adaptive mechanism for wireless multicast based on IGMP in IEEE 802. 11
WANG Jin-tao
LI Ming-qi
Abstract：Aiming at the problem that the multicast rate can not meet the transmission demand, a rate adaptive mechanism for wireless multicast based on both internet group management protocol ( IGMP) and improved auto rate fallback ( ARF) algorithm was proposed. In the proposed mechanism, the IGMP packets which must be sent were used to get the received signal to noise ratio ( SNR) , and then the multicast rate was determined. Based on the adjustment cycle interval of IGMP packets, an improved ARF algorithm was added to adjust the multicast rate. The proposed mechanism avoided the collision problem occured among a lot of feedback frames, so that the multicast access point ( AP ) could get the effective feedback of transmission results to perform the more accurate rate adjustment. The results indicate that the proposed mechanism can better adjust the wireless multicast rate and promote the throughput of wireless multicast.
Keywords：wireless local area network ( WLAN)wireless multicastinternet group management protocol ( IGMP)rate adaptationimproved ARFsignal to noise ratio ( SNR)throughput
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 691-696 )