Causes of packet loss in wireless network can be categorized into wireless-link-caused loss and handover-caused loss. Wireless-link-caused loss is packet loss caused by low quality of wireless link. Handover-caused loss is packet loss caused by handover operation. The latter packet losses have more significant impact to reliable multicast in wireless communications, because handover causes long-period bursty loss. This bursty loss may cause tentative serious increase of generated NAKs and leads to performance degradation due to NAK implosion. This paper focuses on this handover-caused loss in wireless reliable multicast.
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