TY - GEN
T1 - Adaptive feedback bit allocation for coordinated multi-point transmission systems
AU - Jaramillo-Ramirez, Daniel
AU - Kountouris, Marios
AU - Hardouin, Eric
PY - 2013
Y1 - 2013
N2 - The problem of adaptive feedback bit allocation for two different Coordinated Multi-Point (CoMP) transmission schemes, namely Joint Transmission (JT) and Coordinated Beamforming (CBF), is studied here. We formulate the average rate maximization problem in which channel information to the serving and interfering base stations is quantized with different resolution. Unlike previously proposed solutions, we show that it is possible to solve the optimization problem without decomposing it in two terms (desired signal and interference). The proposed adaptive bit allocation algorithm is evaluated through simulations for a realistic cellular layout, where users are placed exclusively in the cell edge, and results are averaged over different positions to avoid placement biasing. The gains of the proposed method vary from 5% to 50% showing that adaptive feedback allocation is an effective method to improve throughput performance in CoMP systems.
AB - The problem of adaptive feedback bit allocation for two different Coordinated Multi-Point (CoMP) transmission schemes, namely Joint Transmission (JT) and Coordinated Beamforming (CBF), is studied here. We formulate the average rate maximization problem in which channel information to the serving and interfering base stations is quantized with different resolution. Unlike previously proposed solutions, we show that it is possible to solve the optimization problem without decomposing it in two terms (desired signal and interference). The proposed adaptive bit allocation algorithm is evaluated through simulations for a realistic cellular layout, where users are placed exclusively in the cell edge, and results are averaged over different positions to avoid placement biasing. The gains of the proposed method vary from 5% to 50% showing that adaptive feedback allocation is an effective method to improve throughput performance in CoMP systems.
UR - https://www.scopus.com/pages/publications/84893250182
U2 - 10.1109/PIMRC.2013.6666363
DO - 10.1109/PIMRC.2013.6666363
M3 - Conference contribution
AN - SCOPUS:84893250182
SN - 9781467362351
T3 - IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
SP - 1416
EP - 1420
BT - 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 24th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013
Y2 - 8 September 2013 through 11 September 2013
ER -