Maranello: Practical Partial Packet Recovery for 802.11

Partial packet recovery protocols attempt to repair corrupted packets instead of retransmitting them in their entirety. Recent approaches have used physical layer confidence estimates or additional error detection codes embedded in each transmission to identify corrupt bits, or have applied forward error correction to repair without such explicit knowledge. In contrast to these approaches, our goal is a practical design that simultaneously: (a) requires no extra bits in correct packets, (b) reduces recovery latency, except in rare instances, (c) remains compatible with existing 802.11 devices by obeying timing and backoff standards, and (d) can be incrementally deployed on widely available access points and wireless cards. In this paper, we design, implement, and evaluate Maranello, a novel partial packet recovery mechanism

• Type: Conference
• Year: 2010
• Where: NSDI
• Authors: Bo Han, Aaron Schulman, Francesco Gringoli, Neil Spring, Bobby Bhattacharjee, Lorenzo Nava, Lusheng Ji, Seungjoon Lee, Robert R. Miller
• Keywords: Computer Networks, Forward Error Correction, NSDI 2010, Packet Recovery Protocols, Partial Packet Recovery