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The Wi-Fi broadcasting system with its advantage of short installation time, low installation cost and broadband service, has expanded the availability throughout the places where sending large amount of multimedia data simultaneously to the majority of users is required such as classroom, stadium and meeting room. The Wi-Fi broadcasting system is composed of broadcasting server, broadcasting packet...
Wi-Fi broadcasting system is to offer multimedia streaming of the same quality to users even with increasing numbers of users by using broadcasting packet, not Unicast packet. However, the broadcast packet has high packet loss rate because it has not retransmission Medium Access Control (MAC) to recover the packet loss. Therefore, to prevent service quality degradation, a system should apply lost...
In this paper, we present a collision avoidance method for Multi-AP Wi-Fi broadcasting systems. Whereas the existing studies consider single AP based Wi-Fi broadcasting systems, our study focuses on Multi-AP systems which can cover much wider area. We identify and describe a packet collision problem, specific to Multi-AP systems, caused by simultaneous transmission. Two collision scenarios are found...
In recent years, the demand for real-time multi-media service in WLAN environment rapidly increases due to the Wi-Fi smart phone user growth. In order to transmit real-time multimedia to many users, broadcast transmission is more efficient than unicast transmission. However, broadcast transmission without retransmissions leads to the higher loss rate in real wireless environments. In this paper, we...
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