Title :
On the secrecy rate of interference networks using structured codes
Author :
Agrawal, Shweta ; Vishwanath, Sriram
Author_Institution :
ECE Dept., Univ. of Texas, Austin, TX, USA
fDate :
June 28 2009-July 3 2009
Abstract :
This paper shows that structured transmission schemes are a good choice for secret communication over interference networks with an eavesdropper. Structured transmission is shown to exploit channel asymmetries and thus perform better than randomly generated codebooks for such channels. For a class of interference channels, we show that an equivocation sum-rate that is within two bits of the maximum possible legitimate communication sum-rate is achievable using lattice codes.
Keywords :
channel coding; cryptography; interference; random codes; telecommunication security; cryptography; eavesdropping; equivocation sum-rate; interference channel asymmetry; interference network; lattice code; legitimate communication sum-rate; random codebook generation; secret communication rate; structured code transmission scheme; Channel capacity; Cryptography; Information analysis; Information security; Interference channels; Lattices; Random variables; Relays; Transmitters; Wireless networks;
Conference_Titel :
Information Theory, 2009. ISIT 2009. IEEE International Symposium on
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-4312-3
Electronic_ISBN :
978-1-4244-4313-0
DOI :
10.1109/ISIT.2009.5205275
