Receiver design for MIMO relay stations in multi-cell downlink system

Seonghyun Kim, Hyukmin Son, Sanghoon Lee

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

In multi-cell downlink system, quality of service (QoS) of multiuser MIMO is an important issue, in particular, for cell-edge users. For QoS of cell-edge users in the system, the utilization of multiple-input multiple-output (MIMO) relay stations (RSs) is a promising solution that improves the signal-to-interference plus noise ratio (SINR) from neighboring base stations (BSs) to each RS. Since the capacity between the BS and the RS relies heavily on the receive performance, it is necessary to reflect interference channels in the design of the receive weight vector. In this paper, we use a geometric approach to derive the effective channel gain of the RS according to the receive weight vector. The geometric relationship between the desired and interference channels is also described. Using the description, we propose a receiver, called the maximum lower bound of expected SINR receiver (MLESR). Through a performance analysis of the MLESR over the interference-limited regime, we derive closed terms for the performance bounds in terms of the number of RS antennas, the interference channel rank, and the BS transmit power according to the rate gap of the MLESR with respect to an ideal case, i.e., a no interference case.

Original languageEnglish
Article number6196278
Pages (from-to)2446-2456
Number of pages11
JournalIEEE Transactions on Wireless Communications
Volume11
Issue number7
DOIs
Publication statusPublished - 2012 May 11

Fingerprint

Multiple-input multiple-output (MIMO)
Base stations
Relay
Receiver
Interference Channel
Interference
Cell
Quality of service
Lower bound
Quality of Service
Performance Bounds
Antennas
Geometric Approach
Performance Analysis
Antenna
Design
Closed
Necessary
Term

All Science Journal Classification (ASJC) codes

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

Cite this

@article{9cd404a9f5b84b85a7eea4c6354e4364,
title = "Receiver design for MIMO relay stations in multi-cell downlink system",
abstract = "In multi-cell downlink system, quality of service (QoS) of multiuser MIMO is an important issue, in particular, for cell-edge users. For QoS of cell-edge users in the system, the utilization of multiple-input multiple-output (MIMO) relay stations (RSs) is a promising solution that improves the signal-to-interference plus noise ratio (SINR) from neighboring base stations (BSs) to each RS. Since the capacity between the BS and the RS relies heavily on the receive performance, it is necessary to reflect interference channels in the design of the receive weight vector. In this paper, we use a geometric approach to derive the effective channel gain of the RS according to the receive weight vector. The geometric relationship between the desired and interference channels is also described. Using the description, we propose a receiver, called the maximum lower bound of expected SINR receiver (MLESR). Through a performance analysis of the MLESR over the interference-limited regime, we derive closed terms for the performance bounds in terms of the number of RS antennas, the interference channel rank, and the BS transmit power according to the rate gap of the MLESR with respect to an ideal case, i.e., a no interference case.",
author = "Seonghyun Kim and Hyukmin Son and Sanghoon Lee",
year = "2012",
month = "5",
day = "11",
doi = "10.1109/TWC.2012.050112.110643",
language = "English",
volume = "11",
pages = "2446--2456",
journal = "IEEE Transactions on Wireless Communications",
issn = "1536-1276",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "7",

}

Receiver design for MIMO relay stations in multi-cell downlink system. / Kim, Seonghyun; Son, Hyukmin; Lee, Sanghoon.

In: IEEE Transactions on Wireless Communications, Vol. 11, No. 7, 6196278, 11.05.2012, p. 2446-2456.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Receiver design for MIMO relay stations in multi-cell downlink system

AU - Kim, Seonghyun

AU - Son, Hyukmin

AU - Lee, Sanghoon

PY - 2012/5/11

Y1 - 2012/5/11

N2 - In multi-cell downlink system, quality of service (QoS) of multiuser MIMO is an important issue, in particular, for cell-edge users. For QoS of cell-edge users in the system, the utilization of multiple-input multiple-output (MIMO) relay stations (RSs) is a promising solution that improves the signal-to-interference plus noise ratio (SINR) from neighboring base stations (BSs) to each RS. Since the capacity between the BS and the RS relies heavily on the receive performance, it is necessary to reflect interference channels in the design of the receive weight vector. In this paper, we use a geometric approach to derive the effective channel gain of the RS according to the receive weight vector. The geometric relationship between the desired and interference channels is also described. Using the description, we propose a receiver, called the maximum lower bound of expected SINR receiver (MLESR). Through a performance analysis of the MLESR over the interference-limited regime, we derive closed terms for the performance bounds in terms of the number of RS antennas, the interference channel rank, and the BS transmit power according to the rate gap of the MLESR with respect to an ideal case, i.e., a no interference case.

AB - In multi-cell downlink system, quality of service (QoS) of multiuser MIMO is an important issue, in particular, for cell-edge users. For QoS of cell-edge users in the system, the utilization of multiple-input multiple-output (MIMO) relay stations (RSs) is a promising solution that improves the signal-to-interference plus noise ratio (SINR) from neighboring base stations (BSs) to each RS. Since the capacity between the BS and the RS relies heavily on the receive performance, it is necessary to reflect interference channels in the design of the receive weight vector. In this paper, we use a geometric approach to derive the effective channel gain of the RS according to the receive weight vector. The geometric relationship between the desired and interference channels is also described. Using the description, we propose a receiver, called the maximum lower bound of expected SINR receiver (MLESR). Through a performance analysis of the MLESR over the interference-limited regime, we derive closed terms for the performance bounds in terms of the number of RS antennas, the interference channel rank, and the BS transmit power according to the rate gap of the MLESR with respect to an ideal case, i.e., a no interference case.

UR - http://www.scopus.com/inward/record.url?scp=84864120965&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84864120965&partnerID=8YFLogxK

U2 - 10.1109/TWC.2012.050112.110643

DO - 10.1109/TWC.2012.050112.110643

M3 - Article

VL - 11

SP - 2446

EP - 2456

JO - IEEE Transactions on Wireless Communications

JF - IEEE Transactions on Wireless Communications

SN - 1536-1276

IS - 7

M1 - 6196278

ER -