Semi-blind interference alignment based on OFDM over frequency selective X channels

Manato Takai, Koji Ishibashi, Won-Yong Shin, Hyo Seok Yi, Tadahiro Wada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In this paper, we focus on a X channel; a system with two transmitters and two receivers each equipped with a single antenna, where independent messages need to be conveyed over channels from each transmitter to each receiver. A key concept of that arises in the context of the X channel is interference alignment (IA) that refers to an overlap of signal spaces occupied by undesired interference at each receiver while keeping desired signal spaces distinct. However, all the channel responses and the precise time synchronization are required at every transmitter and receiver to realize the IA, which are seriously demanding in practice. In this paper, we propose semi-blind IA (S-BIA) scheme exploiting frequency selectivity of wireless channels using orthogonal frequency division multiplexing (OFDM), which only requires channel responses corresponding to each transmitter. Numerical results confirm that proposed S-BIA can achieve the same degrees of freedom as conventional IA even in the presence of time synchronization errors.

Original languageEnglish
Title of host publication2013 IEEE International Conference on Communications, ICC 2013
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages5236-5241
Number of pages6
ISBN (Print)9781467331227
DOIs
Publication statusPublished - 2013 Jan 1
Event2013 IEEE International Conference on Communications, ICC 2013 - Budapest, Hungary
Duration: 2013 Jun 92013 Jun 13

Publication series

NameIEEE International Conference on Communications
ISSN (Print)1550-3607

Conference

Conference2013 IEEE International Conference on Communications, ICC 2013
CountryHungary
CityBudapest
Period13/6/913/6/13

Fingerprint

Orthogonal frequency division multiplexing
Transmitters
Synchronization
Antennas

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

Takai, M., Ishibashi, K., Shin, W-Y., Yi, H. S., & Wada, T. (2013). Semi-blind interference alignment based on OFDM over frequency selective X channels. In 2013 IEEE International Conference on Communications, ICC 2013 (pp. 5236-5241). [6655417] (IEEE International Conference on Communications). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICC.2013.6655417
Takai, Manato ; Ishibashi, Koji ; Shin, Won-Yong ; Yi, Hyo Seok ; Wada, Tadahiro. / Semi-blind interference alignment based on OFDM over frequency selective X channels. 2013 IEEE International Conference on Communications, ICC 2013. Institute of Electrical and Electronics Engineers Inc., 2013. pp. 5236-5241 (IEEE International Conference on Communications).
@inproceedings{76fa3a247d53493598e200d1a82030d8,
title = "Semi-blind interference alignment based on OFDM over frequency selective X channels",
abstract = "In this paper, we focus on a X channel; a system with two transmitters and two receivers each equipped with a single antenna, where independent messages need to be conveyed over channels from each transmitter to each receiver. A key concept of that arises in the context of the X channel is interference alignment (IA) that refers to an overlap of signal spaces occupied by undesired interference at each receiver while keeping desired signal spaces distinct. However, all the channel responses and the precise time synchronization are required at every transmitter and receiver to realize the IA, which are seriously demanding in practice. In this paper, we propose semi-blind IA (S-BIA) scheme exploiting frequency selectivity of wireless channels using orthogonal frequency division multiplexing (OFDM), which only requires channel responses corresponding to each transmitter. Numerical results confirm that proposed S-BIA can achieve the same degrees of freedom as conventional IA even in the presence of time synchronization errors.",
author = "Manato Takai and Koji Ishibashi and Won-Yong Shin and Yi, {Hyo Seok} and Tadahiro Wada",
year = "2013",
month = "1",
day = "1",
doi = "10.1109/ICC.2013.6655417",
language = "English",
isbn = "9781467331227",
series = "IEEE International Conference on Communications",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "5236--5241",
booktitle = "2013 IEEE International Conference on Communications, ICC 2013",
address = "United States",

}

Takai, M, Ishibashi, K, Shin, W-Y, Yi, HS & Wada, T 2013, Semi-blind interference alignment based on OFDM over frequency selective X channels. in 2013 IEEE International Conference on Communications, ICC 2013., 6655417, IEEE International Conference on Communications, Institute of Electrical and Electronics Engineers Inc., pp. 5236-5241, 2013 IEEE International Conference on Communications, ICC 2013, Budapest, Hungary, 13/6/9. https://doi.org/10.1109/ICC.2013.6655417

Semi-blind interference alignment based on OFDM over frequency selective X channels. / Takai, Manato; Ishibashi, Koji; Shin, Won-Yong; Yi, Hyo Seok; Wada, Tadahiro.

2013 IEEE International Conference on Communications, ICC 2013. Institute of Electrical and Electronics Engineers Inc., 2013. p. 5236-5241 6655417 (IEEE International Conference on Communications).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Semi-blind interference alignment based on OFDM over frequency selective X channels

AU - Takai, Manato

AU - Ishibashi, Koji

AU - Shin, Won-Yong

AU - Yi, Hyo Seok

AU - Wada, Tadahiro

PY - 2013/1/1

Y1 - 2013/1/1

N2 - In this paper, we focus on a X channel; a system with two transmitters and two receivers each equipped with a single antenna, where independent messages need to be conveyed over channels from each transmitter to each receiver. A key concept of that arises in the context of the X channel is interference alignment (IA) that refers to an overlap of signal spaces occupied by undesired interference at each receiver while keeping desired signal spaces distinct. However, all the channel responses and the precise time synchronization are required at every transmitter and receiver to realize the IA, which are seriously demanding in practice. In this paper, we propose semi-blind IA (S-BIA) scheme exploiting frequency selectivity of wireless channels using orthogonal frequency division multiplexing (OFDM), which only requires channel responses corresponding to each transmitter. Numerical results confirm that proposed S-BIA can achieve the same degrees of freedom as conventional IA even in the presence of time synchronization errors.

AB - In this paper, we focus on a X channel; a system with two transmitters and two receivers each equipped with a single antenna, where independent messages need to be conveyed over channels from each transmitter to each receiver. A key concept of that arises in the context of the X channel is interference alignment (IA) that refers to an overlap of signal spaces occupied by undesired interference at each receiver while keeping desired signal spaces distinct. However, all the channel responses and the precise time synchronization are required at every transmitter and receiver to realize the IA, which are seriously demanding in practice. In this paper, we propose semi-blind IA (S-BIA) scheme exploiting frequency selectivity of wireless channels using orthogonal frequency division multiplexing (OFDM), which only requires channel responses corresponding to each transmitter. Numerical results confirm that proposed S-BIA can achieve the same degrees of freedom as conventional IA even in the presence of time synchronization errors.

UR - http://www.scopus.com/inward/record.url?scp=84891370314&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84891370314&partnerID=8YFLogxK

U2 - 10.1109/ICC.2013.6655417

DO - 10.1109/ICC.2013.6655417

M3 - Conference contribution

AN - SCOPUS:84891370314

SN - 9781467331227

T3 - IEEE International Conference on Communications

SP - 5236

EP - 5241

BT - 2013 IEEE International Conference on Communications, ICC 2013

PB - Institute of Electrical and Electronics Engineers Inc.

ER -

Takai M, Ishibashi K, Shin W-Y, Yi HS, Wada T. Semi-blind interference alignment based on OFDM over frequency selective X channels. In 2013 IEEE International Conference on Communications, ICC 2013. Institute of Electrical and Electronics Engineers Inc. 2013. p. 5236-5241. 6655417. (IEEE International Conference on Communications). https://doi.org/10.1109/ICC.2013.6655417