TY - GEN
T1 - Approximately universal MIMO diversity embedded codes
AU - Lu, Francis
PY - 2010
Y1 - 2010
N2 - In diversity embedded coding, information streams are divided into two sub-streams with different priorities. If the optimal DMT performance of each coded stream can be achieved, then such code is said to be successive refinable. For the cases of SISO, SIMO, and MISO Rayleigh slow fading channels, Diggavi and Tse [1] had shown that superposition coding with successive cancellation receiver achieves successive refinability in these channels. However, such optimality might not be extended to MIMO channel due to the strictly sub-optimality of successive cancellation receiver. In this paper, we first provide an explicit construction of MIMO diversity embedded codes that is sphere decodable.We then show that the proposed code is approximately universal, if joint ML decoding is used, and hence extend the notion of successive refinability to general MIMO channels.
AB - In diversity embedded coding, information streams are divided into two sub-streams with different priorities. If the optimal DMT performance of each coded stream can be achieved, then such code is said to be successive refinable. For the cases of SISO, SIMO, and MISO Rayleigh slow fading channels, Diggavi and Tse [1] had shown that superposition coding with successive cancellation receiver achieves successive refinability in these channels. However, such optimality might not be extended to MIMO channel due to the strictly sub-optimality of successive cancellation receiver. In this paper, we first provide an explicit construction of MIMO diversity embedded codes that is sphere decodable.We then show that the proposed code is approximately universal, if joint ML decoding is used, and hence extend the notion of successive refinability to general MIMO channels.
UR - http://www.scopus.com/inward/record.url?scp=78651287149&partnerID=8YFLogxK
U2 - 10.1109/ISITA.2010.5648877
DO - 10.1109/ISITA.2010.5648877
M3 - Conference contribution
AN - SCOPUS:78651287149
SN - 9781424460175
T3 - ISITA/ISSSTA 2010 - 2010 International Symposium on Information Theory and Its Applications
SP - 25
EP - 30
BT - ISITA/ISSSTA 2010 - 2010 International Symposium on Information Theory and Its Applications
T2 - 2010 20th International Symposium on Information Theory and Its Applications, ISITA 2010 and the 2010 20th International Symposium on Spread Spectrum Techniques and Applications, ISSSTA 2010
Y2 - 17 October 2010 through 20 October 2010
ER -