Implementation and Evolution of Packet Striping for Media Streaming Over Multiple Burst-Loss Channels

Modern mobile devices are multi-homed with WLAN and WWAN communication interfaces. In a community of nodes with such multihomed devices — locally inter-connected via high-speed WLAN but each globally connected to larger networks via low-speed WWAN, striping high-volume traffic from remote large networks over a bundle of low speed WWAN links can overcome the bandwidth mismatch problem between WLAN and WWAN. In our previous work, we showed that a packet striping system for such multi-homed devices — a mapping of delay-sensitive packets by an intermediate gateway to multiple channels using combination of retransmissions (ARQ) and forward error corrections (FEC) — can dramatically enhance the overall performance. In this paper, we improve upon a previous algorithm in two respects. First, by introducing two-tier dynamic programming tables to memoize computed solutions, packet striping decisions translate to simple table lookup operations given stationary network statistics. Doing so...

• Type: Conference
• Year: 2006
• Where: ICMCS
• Authors: Gene Cheung, Puneet Sharma, Sung-Ju Lee
• Keywords: ICMCS 2006, Striping, WWAN, WWAN Communication Interfaces