On the DoF of Parallel MISO BCs with Partial CSIT: Total order and separability

Hamdi Joudeh; Bruno Clerckx

doi:10.1109/GLOCOM.2017.8254169

On the DoF of Parallel MISO BCs with Partial CSIT: Total order and separability

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Abstract

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.

Original language	English
Title of host publication	GLOBECOM 2017 - 2017 IEEE Global Communications Conference
Publisher	Institute of Electrical and Electronics Engineers
Pages	1-6
Number of pages	6
ISBN (Electronic)	978-1-5090-5019-2
DOIs	https://doi.org/10.1109/GLOCOM.2017.8254169
Publication status	Published - 15 Jan 2018
Externally published	Yes
Event	2017 IEEE Global Communications Conference (GLOBECOM 2017) - Singapore, Singapore, Singapore Duration: 4 Dec 2017 → 8 Dec 2017

Conference

Conference	2017 IEEE Global Communications Conference (GLOBECOM 2017)
Abbreviated title	GLOBECOM 2017
Country/Territory	Singapore
City	Singapore
Period	4/12/17 → 8/12/17

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10.1109/GLOCOM.2017.8254169

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title = "On the DoF of Parallel MISO BCs with Partial CSIT: Total order and separability",

abstract = "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.",

author = "Hamdi Joudeh and Bruno Clerckx",

year = "2018",

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doi = "10.1109/GLOCOM.2017.8254169",

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booktitle = "GLOBECOM 2017 - 2017 IEEE Global Communications Conference",

publisher = "Institute of Electrical and Electronics Engineers",

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Joudeh, H & Clerckx, B 2018, On the DoF of Parallel MISO BCs with Partial CSIT: Total order and separability. in GLOBECOM 2017 - 2017 IEEE Global Communications Conference., 8254169, Institute of Electrical and Electronics Engineers, pp. 1-6, 2017 IEEE Global Communications Conference (GLOBECOM 2017), Singapore, Singapore, 4/12/17. https://doi.org/10.1109/GLOCOM.2017.8254169

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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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M3 - Conference contribution

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PB - Institute of Electrical and Electronics Engineers

Y2 - 4 December 2017 through 8 December 2017

ER -

On the DoF of Parallel MISO BCs with Partial CSIT: Total order and separability

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