Optimal Power Allocation in MISO Cache-Aided Communication

Soheil Mohajer; Itsik Bergel

doi:10.1109/SPAWC.2018.8445770

Optimal Power Allocation in MISO Cache-Aided Communication

Soheil Mohajer, Itsik Bergel

Electrical and Computer Engineering

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

4 Scopus citations

Abstract

The problem of cache-aided communication is studied for cellular networks with multi-user, with multiple-input and multiple output antennas, and finite range of signal-to-noise ratio. Users are assumed to have non-symmetric links, modeled by wideband fading channels. The ultimate goal is to design a joint power, rate, and cache allocation along with pre-fetching and fetching schemes to minimize the duration of communication in the delivery phase. This is formulated as a linear program, and a closed form solution is presented for some special range of parameters. In particular, the gain of MIMO coded caching is shown to be beyond trading between spatial diversity and accumulative cache size, specially in low SNR regime, where each user can be served at its own channel rate, rather than being compromised by the poorest user in the communication group.

Original language	English (US)
Title of host publication	2018 IEEE 19th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2018
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Print)	9781538635124
DOIs	https://doi.org/10.1109/SPAWC.2018.8445770
State	Published - Aug 24 2018
Event	19th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2018 - Kalamata, Greece Duration: Jun 25 2018 → Jun 28 2018

Publication series

Name	IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC
Volume	2018-June

Other

Other	19th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2018
Country/Territory	Greece
City	Kalamata
Period	6/25/18 → 6/28/18

Bibliographical note

Funding Information:
The work of S. Mohajer was supported in part by the National Science Foundation under Grant CCF-1749981.

Publisher Copyright:
© 2018 IEEE.

Keywords

Cache and Power allocation
Cache-aided communication
Finite SNR regime
MIMO
Zero-forcing

Access

10.1109/SPAWC.2018.8445770

OpenUrl availability

Full text

Cite this

Mohajer, S., & Bergel, I. (2018). Optimal Power Allocation in MISO Cache-Aided Communication. In 2018 IEEE 19th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2018 Article 8445770 (IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC; Vol. 2018-June). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SPAWC.2018.8445770

Optimal Power Allocation in MISO Cache-Aided Communication. / Mohajer, Soheil; Bergel, Itsik.
2018 IEEE 19th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2018. Institute of Electrical and Electronics Engineers Inc., 2018. 8445770 (IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC; Vol. 2018-June).

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

Mohajer, S & Bergel, I 2018, Optimal Power Allocation in MISO Cache-Aided Communication. in 2018 IEEE 19th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2018., 8445770, IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC, vol. 2018-June, Institute of Electrical and Electronics Engineers Inc., 19th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2018, Kalamata, Greece, 6/25/18. https://doi.org/10.1109/SPAWC.2018.8445770

Mohajer S, Bergel I. Optimal Power Allocation in MISO Cache-Aided Communication. In 2018 IEEE 19th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2018. Institute of Electrical and Electronics Engineers Inc. 2018. 8445770. (IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC). doi: 10.1109/SPAWC.2018.8445770

@inproceedings{fd67d5c1bdf14403b7299ac5e1a358ab,

title = "Optimal Power Allocation in MISO Cache-Aided Communication",

abstract = "The problem of cache-aided communication is studied for cellular networks with multi-user, with multiple-input and multiple output antennas, and finite range of signal-to-noise ratio. Users are assumed to have non-symmetric links, modeled by wideband fading channels. The ultimate goal is to design a joint power, rate, and cache allocation along with pre-fetching and fetching schemes to minimize the duration of communication in the delivery phase. This is formulated as a linear program, and a closed form solution is presented for some special range of parameters. In particular, the gain of MIMO coded caching is shown to be beyond trading between spatial diversity and accumulative cache size, specially in low SNR regime, where each user can be served at its own channel rate, rather than being compromised by the poorest user in the communication group.",

keywords = "Cache and Power allocation, Cache-aided communication, Finite SNR regime, MIMO, Zero-forcing",

author = "Soheil Mohajer and Itsik Bergel",

note = "Funding Information: The work of S. Mohajer was supported in part by the National Science Foundation under Grant CCF-1749981. Publisher Copyright: {\textcopyright} 2018 IEEE.; 19th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2018 ; Conference date: 25-06-2018 Through 28-06-2018",

year = "2018",

month = aug,

day = "24",

doi = "10.1109/SPAWC.2018.8445770",

language = "English (US)",

isbn = "9781538635124",

series = "IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

booktitle = "2018 IEEE 19th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2018",

}

TY - GEN

T1 - Optimal Power Allocation in MISO Cache-Aided Communication

AU - Mohajer, Soheil

AU - Bergel, Itsik

PY - 2018/8/24

Y1 - 2018/8/24

N2 - The problem of cache-aided communication is studied for cellular networks with multi-user, with multiple-input and multiple output antennas, and finite range of signal-to-noise ratio. Users are assumed to have non-symmetric links, modeled by wideband fading channels. The ultimate goal is to design a joint power, rate, and cache allocation along with pre-fetching and fetching schemes to minimize the duration of communication in the delivery phase. This is formulated as a linear program, and a closed form solution is presented for some special range of parameters. In particular, the gain of MIMO coded caching is shown to be beyond trading between spatial diversity and accumulative cache size, specially in low SNR regime, where each user can be served at its own channel rate, rather than being compromised by the poorest user in the communication group.

AB - The problem of cache-aided communication is studied for cellular networks with multi-user, with multiple-input and multiple output antennas, and finite range of signal-to-noise ratio. Users are assumed to have non-symmetric links, modeled by wideband fading channels. The ultimate goal is to design a joint power, rate, and cache allocation along with pre-fetching and fetching schemes to minimize the duration of communication in the delivery phase. This is formulated as a linear program, and a closed form solution is presented for some special range of parameters. In particular, the gain of MIMO coded caching is shown to be beyond trading between spatial diversity and accumulative cache size, specially in low SNR regime, where each user can be served at its own channel rate, rather than being compromised by the poorest user in the communication group.

KW - Cache and Power allocation

KW - Cache-aided communication

KW - Finite SNR regime

KW - MIMO

KW - Zero-forcing

UR - http://www.scopus.com/inward/record.url?scp=85053478576&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85053478576&partnerID=8YFLogxK

U2 - 10.1109/SPAWC.2018.8445770

DO - 10.1109/SPAWC.2018.8445770

M3 - Conference contribution

AN - SCOPUS:85053478576

SN - 9781538635124

T3 - IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC

BT - 2018 IEEE 19th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2018

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 19th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2018

Y2 - 25 June 2018 through 28 June 2018

ER -

Optimal Power Allocation in MISO Cache-Aided Communication

Abstract

Publication series

Other

Bibliographical note

Keywords

Access

OpenUrl availability

Other files and links

Fingerprint

Cite this