Cooperative joint precoding for relay enhanced cellular system: Design and performance evaluation

Jae Woo Kwon; Ki Hong Park; Young Chai Ko; Hong Chuan Yang

doi:10.1109/IWCMC.2011.5982811

Cooperative joint precoding for relay enhanced cellular system: Design and performance evaluation

Jae Woo Kwon, Ki Hong Park, Young Chai Ko, Hong Chuan Yang

Research output: Contribution to conference › Paper › peer-review

1 Scopus citations

Abstract

In this paper, we introduce the notion of a relay enhanced cellular system, where a relay station is located in the overlap area served by two base stations, and propose a cooperative joint precoding scheme for the relay enhanced cellular system. We consider a system in which two base stations apply linear precoding to minimize the interference at the relay station and the mobile stations and formulate the optimization problem to maximize the system capacity and design the multiuser precoding vector for each base station. We quantify the ergodic rate performance of the proposed multiuser precoding scheme through statistical analysis. Numerical results show that the proposed scheme can effectively cancel the interference and improve the sum rate performance for cell edge users.

Original language	English (US)
Pages	1820-1824
Number of pages	5
DOIs	https://doi.org/10.1109/IWCMC.2011.5982811
State	Published - 2011
Event	7th International Wireless Communications and Mobile Computing Conference, IWCMC 2011 - Istanbul, Turkey Duration: Jul 4 2011 → Jul 8 2011

Other

Other	7th International Wireless Communications and Mobile Computing Conference, IWCMC 2011
Country/Territory	Turkey
City	Istanbul
Period	07/4/11 → 07/8/11

Keywords

Communication with relay
Cooperative joint precoding
Ergodic rate

ASJC Scopus subject areas

Artificial Intelligence

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10.1109/IWCMC.2011.5982811

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title = "Cooperative joint precoding for relay enhanced cellular system: Design and performance evaluation",

abstract = "In this paper, we introduce the notion of a relay enhanced cellular system, where a relay station is located in the overlap area served by two base stations, and propose a cooperative joint precoding scheme for the relay enhanced cellular system. We consider a system in which two base stations apply linear precoding to minimize the interference at the relay station and the mobile stations and formulate the optimization problem to maximize the system capacity and design the multiuser precoding vector for each base station. We quantify the ergodic rate performance of the proposed multiuser precoding scheme through statistical analysis. Numerical results show that the proposed scheme can effectively cancel the interference and improve the sum rate performance for cell edge users.",

keywords = "Communication with relay, Cooperative joint precoding, Ergodic rate",

author = "Kwon, {Jae Woo} and Park, {Ki Hong} and Ko, {Young Chai} and Yang, {Hong Chuan}",

note = "Funding Information: V. CONCLUSION We proposed and analyzed a cooperative joint precoding scheme for the relay enhanced cellular system. Numerical results showed that the proposed multiuser precoding scheme can effectively cancel the interference and improve the sum rate performance for cell edge users. We also verified that the analytical result of the ergodic rate represents a very tight bound of the actual values through simulation. We are currently working on the extension of this paper such as more than two BSs system model. ACKNOWLEDGMENT This work was supported by the Ministry of Knowledge Economy, Korea, under the ITRC support program supervised by the NIPA (NIPA-2011-C1090-1011-0007). Publisher Copyright: {\textcopyright} 2011 IEEE.; 7th International Wireless Communications and Mobile Computing Conference, IWCMC 2011 ; Conference date: 04-07-2011 Through 08-07-2011",

year = "2011",

doi = "10.1109/IWCMC.2011.5982811",

language = "English (US)",

pages = "1820--1824",

}

TY - CONF

T1 - Cooperative joint precoding for relay enhanced cellular system

T2 - 7th International Wireless Communications and Mobile Computing Conference, IWCMC 2011

AU - Kwon, Jae Woo

AU - Park, Ki Hong

AU - Ko, Young Chai

AU - Yang, Hong Chuan

N1 - Funding Information: V. CONCLUSION We proposed and analyzed a cooperative joint precoding scheme for the relay enhanced cellular system. Numerical results showed that the proposed multiuser precoding scheme can effectively cancel the interference and improve the sum rate performance for cell edge users. We also verified that the analytical result of the ergodic rate represents a very tight bound of the actual values through simulation. We are currently working on the extension of this paper such as more than two BSs system model. ACKNOWLEDGMENT This work was supported by the Ministry of Knowledge Economy, Korea, under the ITRC support program supervised by the NIPA (NIPA-2011-C1090-1011-0007). Publisher Copyright: © 2011 IEEE.

PY - 2011

Y1 - 2011

N2 - In this paper, we introduce the notion of a relay enhanced cellular system, where a relay station is located in the overlap area served by two base stations, and propose a cooperative joint precoding scheme for the relay enhanced cellular system. We consider a system in which two base stations apply linear precoding to minimize the interference at the relay station and the mobile stations and formulate the optimization problem to maximize the system capacity and design the multiuser precoding vector for each base station. We quantify the ergodic rate performance of the proposed multiuser precoding scheme through statistical analysis. Numerical results show that the proposed scheme can effectively cancel the interference and improve the sum rate performance for cell edge users.

AB - In this paper, we introduce the notion of a relay enhanced cellular system, where a relay station is located in the overlap area served by two base stations, and propose a cooperative joint precoding scheme for the relay enhanced cellular system. We consider a system in which two base stations apply linear precoding to minimize the interference at the relay station and the mobile stations and formulate the optimization problem to maximize the system capacity and design the multiuser precoding vector for each base station. We quantify the ergodic rate performance of the proposed multiuser precoding scheme through statistical analysis. Numerical results show that the proposed scheme can effectively cancel the interference and improve the sum rate performance for cell edge users.

KW - Communication with relay

KW - Cooperative joint precoding

KW - Ergodic rate

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U2 - 10.1109/IWCMC.2011.5982811

DO - 10.1109/IWCMC.2011.5982811

M3 - Paper

AN - SCOPUS:85115615138

SP - 1820

EP - 1824

Y2 - 4 July 2011 through 8 July 2011

ER -

Cooperative joint precoding for relay enhanced cellular system: Design and performance evaluation

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