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Combined ACK/ NACK based approach to multicast at the link layer

IP.com Disclosure Number: IPCOM000159853D
Original Publication Date: 2007-Oct-31
Included in the Prior Art Database: 2007-Oct-31

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Ramandeep Ahuja Byung-Kim Seo Adam Lewis Randy L. Ekl


Realtime mission critical multimedia applications are targeted toward groups and are increasingly using network-layer multicast addressing to efficiently route application data, voice and video to the group members. In addition, the group members are wireless increasing the probability that multicast packets will be lost due to poor wireless conditions. This paper proposes a solution to improve wireless multicast by attempting to recover lost multicast frames at the link layer.