How much feedback is required to achieve the degrees of freedom in ergodic X channel?

Soroush Akhlaghi; Ehsan Rahimi; Mohammad Ali Maddah-ali

doi:10.1109/PIMRC.2010.5671715

How much feedback is required to achieve the degrees of freedom in ergodic X channel?

Soroush Akhlaghi, Ehsan Rahimi, Mohammad Ali Maddah-ali

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

This paper aims at investigating the required feedback to achieve the Degrees of freedom (DoF) of X channel. Accordingly, a fixed precoding approach is proposed and is argued can achieve the DoF of such channel, assuming the channel state information is partially available at each transmitter through a feedback mechanism. This is achieved through using the notion of ergodic interference alignment technique. Accordingly, in a Rayleigh fading environment, it is shown a feedback rate of 2 log(p) + Θ(log log(p)) [1] can achieve this DoF, where p is the total transmit power.

Original language	English (US)
Title of host publication	2010 IEEE 21st International Symposium on Personal Indoor and Mobile Radio Communications, PIMRC 2010
Pages	2370-2374
Number of pages	5
DOIs	https://doi.org/10.1109/PIMRC.2010.5671715
State	Published - 2010
Externally published	Yes
Event	2010 IEEE 21st International Symposium on Personal Indoor and Mobile Radio Communications, PIMRC 2010 - Istanbul, Turkey Duration: Sep 26 2010 → Sep 30 2010

Publication series

Name	IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC

Conference

Conference	2010 IEEE 21st International Symposium on Personal Indoor and Mobile Radio Communications, PIMRC 2010
Country/Territory	Turkey
City	Istanbul
Period	9/26/10 → 9/30/10

Publisher link

10.1109/PIMRC.2010.5671715

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Cite this

Akhlaghi, S., Rahimi, E., & Maddah-ali, M. A. (2010). How much feedback is required to achieve the degrees of freedom in ergodic X channel? In 2010 IEEE 21st International Symposium on Personal Indoor and Mobile Radio Communications, PIMRC 2010 (pp. 2370-2374). Article 5671715 (IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC). https://doi.org/10.1109/PIMRC.2010.5671715

How much feedback is required to achieve the degrees of freedom in ergodic X channel? / Akhlaghi, Soroush; Rahimi, Ehsan; Maddah-ali, Mohammad Ali.
2010 IEEE 21st International Symposium on Personal Indoor and Mobile Radio Communications, PIMRC 2010. 2010. p. 2370-2374 5671715 (IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Akhlaghi, S, Rahimi, E & Maddah-ali, MA 2010, How much feedback is required to achieve the degrees of freedom in ergodic X channel? in 2010 IEEE 21st International Symposium on Personal Indoor and Mobile Radio Communications, PIMRC 2010., 5671715, IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC, pp. 2370-2374, 2010 IEEE 21st International Symposium on Personal Indoor and Mobile Radio Communications, PIMRC 2010, Istanbul, Turkey, 9/26/10. https://doi.org/10.1109/PIMRC.2010.5671715

Akhlaghi S, Rahimi E, Maddah-ali MA. How much feedback is required to achieve the degrees of freedom in ergodic X channel? In 2010 IEEE 21st International Symposium on Personal Indoor and Mobile Radio Communications, PIMRC 2010. 2010. p. 2370-2374. 5671715. (IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC). doi: 10.1109/PIMRC.2010.5671715

@inproceedings{9f07fc9260e84f1da64741ec0eea809c,

title = "How much feedback is required to achieve the degrees of freedom in ergodic X channel?",

abstract = "This paper aims at investigating the required feedback to achieve the Degrees of freedom (DoF) of X channel. Accordingly, a fixed precoding approach is proposed and is argued can achieve the DoF of such channel, assuming the channel state information is partially available at each transmitter through a feedback mechanism. This is achieved through using the notion of ergodic interference alignment technique. Accordingly, in a Rayleigh fading environment, it is shown a feedback rate of 2 log(p) + Θ(log log(p)) [1] can achieve this DoF, where p is the total transmit power.",

author = "Soroush Akhlaghi and Ehsan Rahimi and Maddah-ali, {Mohammad Ali}",

year = "2010",

doi = "10.1109/PIMRC.2010.5671715",

language = "English (US)",

isbn = "9781424480166",

series = "IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC",

pages = "2370--2374",

booktitle = "2010 IEEE 21st International Symposium on Personal Indoor and Mobile Radio Communications, PIMRC 2010",

note = "2010 IEEE 21st International Symposium on Personal Indoor and Mobile Radio Communications, PIMRC 2010 ; Conference date: 26-09-2010 Through 30-09-2010",