SourceSync: a distributed wireless architecture for exploiting sender diversity

Diversity is an intrinsic property of wireless networks. Recent years have witnessed the emergence of many distributed protocols like ExOR, MORE, SOAR, SOFT, and MIXIT that exploit receiver diversity in 802.11-like networks. In contrast, the dual of receiver diversity, sender diversity, has remained largely elusive to such networks. This paper presents SourceSync, a distributed architecture for harnessing sender diversity. SourceSync enables concurrent senders to synchronize their transmissions to symbol boundaries, and cooperate to forward packets at higher data rates than they could have achieved by transmitting separately. The paper shows that SourceSync improves the performance of opportunistic routing protocols. Specifically, SourceSync allows all nodes that overhear a packet in a wireless mesh to simultaneously transmit it to their nexthops, in contrast to existing opportunistic routing protocols that are forced to pick a single forwarder from among the overhearing nodes. Such s...

• Type: Conference
• Year: 2010
• Where: SIGCOMM
• Authors: Hariharan Rahul, Haitham Hassanieh, Dina Katabi
• Keywords: Communications, Opportunistic Routing Protocols, Receiver Diversity, Sender Diversity, SIGCOMM 2010