@techreport{TD:100298,
	att_abstract={{Practical network coding systems for wireless networks employ network coding across unicast sessions to improve throughput. In this paper, we propose an approach, I2NC, that combines inter- and intra-session network coding to improve performance in lossy wireless environments. I2NC provides resilience to loss thanks to the error-correcting capabilities of intra-session network coding. Furthermore, redundancy allows intermediate nodes to operate without the knowledge of the decoding buffers at their neighbors. Based only on the knowledge of average
loss rates on the direct and overhearing links, intermediate nodes can make decisions for both intra-session (i.e., how much redundancy to add in each flow) and inter-session (i.e., what percentage of flows to code together) coding. Our approach is
grounded on a network utility maximization formulation of the problem. We propose two practical schemes, I2NC-state and I2NC-stateless, that mimic the structure of the NUM optimal solution and implement the properties mentioned above. We also address the interaction of our approach with the transport layer. We demonstrate the benefits of our schemes (in terms of error resilience, and thereby throughput) compared to COPE, through simulation in GloMoSim.}},
	att_authors={kr2812},
	att_categories={C_NSS.18},
	att_copyright={{IEEE}},
	att_copyright_notice={{}},
	att_donotupload={true},
	att_private={false},
	att_projects={},
	att_tags={network coding,  FEC,  TCP,  wireless},
	att_techdoc={true},
	att_techdoc_key={TD:100298},
	att_url={},
	author={Athina Markopoulou and Hulya Seferoglu and Kadangode Ramakrishnan},
	institution={{IEEE Infocom 2011 Conference}},
	month={April},
	title={{I2NC: Intra- and Inter-Session Network Coding for Unicast Flows in Wireless Networks}},
	year=2011,
}