SINR balancing techniques in coordinated multi-cell downlink systems

Haewook Park, Seok Hwan Park, Jin Sung Kim, Inkyu Lee

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

In this paper, we study coordinated multi-cell downlink systems where multiple base stations jointly design a transmission strategy by sharing channel state information. Particularly, we tackle the signal-to-interference-plus- noise ratio (SINR) balancing problem to maximize the worst-user rate. We consider single-input single-output (SISO) interference channels (IFC) where all nodes are equipped with a single antenna, and there is one active user in each cell. First, achievable rate regions with symmetric complex (SC) and asymmetric complex (AC) signaling techniques are investigated. Then, we present the optimal and near-optimal SINR balancing algorithms with the SC signaling for two and three user SISO IFC. Due to residual interference, the worst-user rate of the SC signaling is saturated at high signal-to-noise-ratio region. To alleviate this problem, we also propose efficient balancing schemes based on the AC signaling for both two and three-user cases. Simulation results confirm effectiveness of the proposed SINR balancing algorithms and show that a substantial gain of the AC signaling is achieved over the SC signaling in terms of the maximum worst-user rate.

Original languageEnglish
Article number6409505
Pages (from-to)626-635
Number of pages10
JournalIEEE Transactions on Wireless Communications
Volume12
Issue number2
DOIs
Publication statusPublished - 2013 Jan 15

Fingerprint

Balancing
Interference
Cell
Interference Channel
Channel state information
Output
Base stations
Channel State Information
Signal to noise ratio
Antenna
Sharing
Antennas
Maximise
Vertex of a graph
Simulation

Keywords

  • Interference channel
  • multi-cell systems
  • SINR balancing

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Applied Mathematics

Cite this

SINR balancing techniques in coordinated multi-cell downlink systems. / Park, Haewook; Park, Seok Hwan; Kim, Jin Sung; Lee, Inkyu.

In: IEEE Transactions on Wireless Communications, Vol. 12, No. 2, 6409505, 15.01.2013, p. 626-635.

Research output: Contribution to journalArticle

Park, Haewook ; Park, Seok Hwan ; Kim, Jin Sung ; Lee, Inkyu. / SINR balancing techniques in coordinated multi-cell downlink systems. In: IEEE Transactions on Wireless Communications. 2013 ; Vol. 12, No. 2. pp. 626-635.
@article{7757ba8b12de4eeaba0f0bc79a40adac,
title = "SINR balancing techniques in coordinated multi-cell downlink systems",
abstract = "In this paper, we study coordinated multi-cell downlink systems where multiple base stations jointly design a transmission strategy by sharing channel state information. Particularly, we tackle the signal-to-interference-plus- noise ratio (SINR) balancing problem to maximize the worst-user rate. We consider single-input single-output (SISO) interference channels (IFC) where all nodes are equipped with a single antenna, and there is one active user in each cell. First, achievable rate regions with symmetric complex (SC) and asymmetric complex (AC) signaling techniques are investigated. Then, we present the optimal and near-optimal SINR balancing algorithms with the SC signaling for two and three user SISO IFC. Due to residual interference, the worst-user rate of the SC signaling is saturated at high signal-to-noise-ratio region. To alleviate this problem, we also propose efficient balancing schemes based on the AC signaling for both two and three-user cases. Simulation results confirm effectiveness of the proposed SINR balancing algorithms and show that a substantial gain of the AC signaling is achieved over the SC signaling in terms of the maximum worst-user rate.",
keywords = "Interference channel, multi-cell systems, SINR balancing",
author = "Haewook Park and Park, {Seok Hwan} and Kim, {Jin Sung} and Inkyu Lee",
year = "2013",
month = "1",
day = "15",
doi = "10.1109/TWC.2012.122212.111962",
language = "English",
volume = "12",
pages = "626--635",
journal = "IEEE Transactions on Wireless Communications",
issn = "1536-1276",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "2",

}

TY - JOUR

T1 - SINR balancing techniques in coordinated multi-cell downlink systems

AU - Park, Haewook

AU - Park, Seok Hwan

AU - Kim, Jin Sung

AU - Lee, Inkyu

PY - 2013/1/15

Y1 - 2013/1/15

N2 - In this paper, we study coordinated multi-cell downlink systems where multiple base stations jointly design a transmission strategy by sharing channel state information. Particularly, we tackle the signal-to-interference-plus- noise ratio (SINR) balancing problem to maximize the worst-user rate. We consider single-input single-output (SISO) interference channels (IFC) where all nodes are equipped with a single antenna, and there is one active user in each cell. First, achievable rate regions with symmetric complex (SC) and asymmetric complex (AC) signaling techniques are investigated. Then, we present the optimal and near-optimal SINR balancing algorithms with the SC signaling for two and three user SISO IFC. Due to residual interference, the worst-user rate of the SC signaling is saturated at high signal-to-noise-ratio region. To alleviate this problem, we also propose efficient balancing schemes based on the AC signaling for both two and three-user cases. Simulation results confirm effectiveness of the proposed SINR balancing algorithms and show that a substantial gain of the AC signaling is achieved over the SC signaling in terms of the maximum worst-user rate.

AB - In this paper, we study coordinated multi-cell downlink systems where multiple base stations jointly design a transmission strategy by sharing channel state information. Particularly, we tackle the signal-to-interference-plus- noise ratio (SINR) balancing problem to maximize the worst-user rate. We consider single-input single-output (SISO) interference channels (IFC) where all nodes are equipped with a single antenna, and there is one active user in each cell. First, achievable rate regions with symmetric complex (SC) and asymmetric complex (AC) signaling techniques are investigated. Then, we present the optimal and near-optimal SINR balancing algorithms with the SC signaling for two and three user SISO IFC. Due to residual interference, the worst-user rate of the SC signaling is saturated at high signal-to-noise-ratio region. To alleviate this problem, we also propose efficient balancing schemes based on the AC signaling for both two and three-user cases. Simulation results confirm effectiveness of the proposed SINR balancing algorithms and show that a substantial gain of the AC signaling is achieved over the SC signaling in terms of the maximum worst-user rate.

KW - Interference channel

KW - multi-cell systems

KW - SINR balancing

UR - http://www.scopus.com/inward/record.url?scp=84874950478&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84874950478&partnerID=8YFLogxK

U2 - 10.1109/TWC.2012.122212.111962

DO - 10.1109/TWC.2012.122212.111962

M3 - Article

AN - SCOPUS:84874950478

VL - 12

SP - 626

EP - 635

JO - IEEE Transactions on Wireless Communications

JF - IEEE Transactions on Wireless Communications

SN - 1536-1276

IS - 2

M1 - 6409505

ER -