XORs in the air

• DOI: 10.1145/1159913.1159942
• Publication Date: 2006-10-18T22:04:00Z
• Authors: Sachin Katti; Hariharan Rahul; Wenjun Hu; Dina Katabi; Muriel Médard; Jon Crowcroft
• Keywords: Linear network coding; Unicast; Testbed; Protocol stack

This paper proposes COPE, a new architecture for wireless mesh networks. In addition to forwarding packets, routers mix (i.e., code) packets from different sources increase the information content of each transmission. We show that intelligently mixing increases network throughput. Our design is rooted in theory coding. Prior work on coding mainly theoretical and focuses multicast traffic. aims bridge with practice; it addresses common case unicast traffic, dynamic potentially bursty flows, practical issues facing integration current stack. evaluate our 20-node network, discuss results first testbed deployment The COPE largely gains vary few percent several folds depending traffic pattern, congestion level, transport protocol.