Name
Abstract | ||
|---|---|---|
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 diver- sity 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 har- nessing sender diversity. SourceSync enables concurrent senders to synchronize their transmissions to symbol boundaries, and co- operate 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 proto- cols. 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 si- multaneous transmission reduces bit errors and improves throughput. The paper also shows that SourceSync increases the throughput of 802.11 last hop diversity protocols by allowing multiple APs to trans- mit simultaneously to a client, thereby harnessing sender diversity. We have implemented SourceSync on the FPGA of an 802.11-like radio platform. We have also evaluated our system in an indoor wireless testbed, empirically showing its benefits. |
Year | DOI | Venue |
|---|---|---|
2010 | 10.1145/1851275.1851204 | ACM SIGCOMM Conference |
Keywords | Field | DocType |
indoor wireless,wireless network,higher data rate,bit error,symbol-level synchronization,wireless mesh,wireless,wireless architecture,last hop diversity protocol,sender diversity,opportunistic routing protocol,receiver diversity,concurrent sender,cooperative diversity,col,routing protocol,distributed architecture | Wireless network,Wireless,Computer science,Cooperative diversity,Network packet,Computer network,Wireless mesh network,Throughput,ExOR,Distributed computing,Routing protocol | Conference |
Volume | Issue | ISSN |
40 | 4 | 0146-4833 |
Citations | PageRank | References |
67 | 2.58 | 32 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Hariharan Shankar Rahul | 1 | 1787 | 97.11 |
| H. Hassanieh | 2 | 591 | 37.63 |
| Dina Katabi | 3 | 7819 | 453.05 |