TY - GEN
T1 - Degrees of freedom of wireless X networks
AU - Cadambe, Viveck R.
AU - Jafar, Syed A.
PY - 2008
Y1 - 2008
N2 - We study the degrees of freedom characterization of wireless X networks, i.e. networks of M distributed single antenna transmitters and N distributed single antenna receivers where every transmitter has an independent message to every receiver. We provide an outerbound on the capacity region of X networks within o(log(SNR)). If the channel co-efficients are time-varying/frequency selective, we show that the total number of degrees of freedom is equal to MN/M+N-1 using a coding scheme based on the idea of interference alignment.
AB - We study the degrees of freedom characterization of wireless X networks, i.e. networks of M distributed single antenna transmitters and N distributed single antenna receivers where every transmitter has an independent message to every receiver. We provide an outerbound on the capacity region of X networks within o(log(SNR)). If the channel co-efficients are time-varying/frequency selective, we show that the total number of degrees of freedom is equal to MN/M+N-1 using a coding scheme based on the idea of interference alignment.
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U2 - 10.1109/ISIT.2008.4595191
DO - 10.1109/ISIT.2008.4595191
M3 - Conference contribution
AN - SCOPUS:52349123399
SN - 9781424422579
T3 - IEEE International Symposium on Information Theory - Proceedings
SP - 1268
EP - 1272
BT - Proceedings - 2008 IEEE International Symposium on Information Theory, ISIT 2008
T2 - 2008 IEEE International Symposium on Information Theory, ISIT 2008
Y2 - 6 July 2008 through 11 July 2008
ER -