Zorzi, Michele and Khamesi, Atieh R. and Lahouti, Farshad (2018) Exact Assessment of the Delay-Rate Tradeoff in Ergodic Interference Alignment. IEEE Communications Letters, 22 (5). pp. 910-913. ISSN 1089-7798. doi:10.1109/LCOMM.2018.2810867. https://resolver.caltech.edu/CaltechAUTHORS:20180523-133743261
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Abstract
In order to increase the network capacity and fulfill the Quality of Service requirements in multi-user wireless networks, interference alignment (IA) has been proposed. Subsequently, ergodic IA was introduced as a promising scheme to achieve a degrees-of-freedom metric equal to (1/2), at the expense of additional delay. In this letter, we study the delay-rate trade-off in ergodic IA and exactly compute the best delay exponent of JAP-B, the state-of-the-art ergodic IA scheme. Moreover, we derive lower and upper bounds for the best delay exponent and show the much better tightness of the proposed bounds compared with those available in the state of the art.
| Item Type: | Article | ||||||||
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| Additional Information: | © 2018 IEEE. Manuscript received December 5, 2017; revised January 27, 2018; accepted February 22, 2018. Date of publication March 1, 2018; date of current version May 8, 2018. | ||||||||
| Subject Keywords: | Interference alignment, interference channels, delay-rate tradeoff, delay exponent, closed-form solution | ||||||||
| Issue or Number: | 5 | ||||||||
| DOI: | 10.1109/LCOMM.2018.2810867 | ||||||||
| Record Number: | CaltechAUTHORS:20180523-133743261 | ||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20180523-133743261 | ||||||||
| Official Citation: | M. Zorzi, A. R. Khamesi and F. Lahouti, "Exact Assessment of the Delay-Rate Tradeoff in Ergodic Interference Alignment," in IEEE Communications Letters, vol. 22, no. 5, pp. 910-913, May 2018. doi: 10.1109/LCOMM.2018.2810867 | ||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||
| ID Code: | 86569 | ||||||||
| Collection: | CaltechAUTHORS | ||||||||
| Deposited By: | Tony Diaz | ||||||||
| Deposited On: | 24 May 2018 16:30 | ||||||||
| Last Modified: | 15 Nov 2021 20:39 |
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