Type
Conference PaperKAUST Department
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) DivisionElectrical Engineering Program
Date
2016-02-26Online Publication Date
2016-02-26Print Publication Date
2015-12Permanent link to this record
http://hdl.handle.net/10754/621287
Metadata
Show full item recordAbstract
This paper addresses the problem of reducing the delivery time of data messages to cellular users using instantly decodable network coding (IDNC) with physical-layer rate awareness. While most of the existing literature on IDNC does not consider any physical layer complications, this paper proposes a cross-layer scheme that incorporates the different channel rates of the various users in the decision process of both the transmitted message combinations and the rates with which they are transmitted. The completion time minimization problem in such scenario is first shown to be intractable. The problem is, thus, approximated by reducing, at each transmission, the increase of an anticipated version of the completion time. The paper solves the problem by formulating it as a maximum weight clique problem over a newly designed rate aware IDNC (RA-IDNC) graph. Further, the paper provides a multi-layer solution to improve the completion time approximation. Simulation results suggest that the cross-layer design largely outperforms the uncoded transmissions strategies and the classical IDNC scheme. © 2015 IEEE.Citation
Douik A, Sorour S, Al-Naffouri TY, Alouini M-S (2015) Rate Aware Instantly Decodable Network Codes. 2015 IEEE Globecom Workshops (GC Wkshps). Available: http://dx.doi.org/10.1109/GLOCOMW.2015.7414149.Conference/Event name
IEEE Globecom Workshops, GC Wkshps 2015arXiv
1504.03985ae974a485f413a2113503eed53cd6c53
10.1109/GLOCOMW.2015.7414149