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
UR - http://www.scopus.com/inward/record.url?scp=85115615138&partnerID=8YFLogxK
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 -