Broadband Video Streaming during Backhaul WiMAX Handovers

Broadband Video Streaming (BVS) with selective retransmission trades a reduced but acceptable video quality during IEEE 802.16e (WiMAX) hard handover (HHO) for improved end-toend latencies. BVS comes in two forms: selective and unselective retransmission when packet loss occurs. Both forms promise better video quality if an HHO occurs than UDP transport or traditional congestion-controlled streaming. If a vertical handover occurs, the unselective form of BVS is preferable. Both variations are intended for IPTV content management networks, which reduce BVS retransmission latency by the proximity of the server. Index Terms — WiMAX, video streaming, hard handover, vertical handover