TY - GEN
T1 - On the DoF of Parallel MISO BCs with Partial CSIT
T2 - 2017 IEEE Global Communications Conference, GLOBECOM 2017
AU - Joudeh, Hamdi
AU - Clerckx, Bruno
N1 - Funding Information:
This work is partially supported by the U.K. Engineering and Physical Sciences Research Council (EPSRC) under grant EP/N015312/1.
PY - 2017/7/1
Y1 - 2017/7/1
N2 - We study the degrees of freedom (DoF) of a K-user parallel MISO broadcast channel with arbitrary levels of partial CSIT over each subchannel. We derive a sum-DoF upperbound which depends on the average CSIT quality of each user. This upperbound is shown to be tight under total order, i.e. when the order of users with respect to their CSIT qualities is preserved over all subchannels. In this case, it is shown that separate coding over each subchannel is optimum in a sum-DoF sense.
AB - We study the degrees of freedom (DoF) of a K-user parallel MISO broadcast channel with arbitrary levels of partial CSIT over each subchannel. We derive a sum-DoF upperbound which depends on the average CSIT quality of each user. This upperbound is shown to be tight under total order, i.e. when the order of users with respect to their CSIT qualities is preserved over all subchannels. In this case, it is shown that separate coding over each subchannel is optimum in a sum-DoF sense.
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U2 - 10.1109/GLOCOM.2017.8254169
DO - 10.1109/GLOCOM.2017.8254169
M3 - Conference contribution
AN - SCOPUS:85046377643
T3 - 2017 IEEE Global Communications Conference, GLOBECOM 2017 - Proceedings
SP - 1
EP - 6
BT - 2017 IEEE Global Communications Conference, GLOBECOM 2017 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 4 December 2017 through 8 December 2017
ER -