TY - JOUR
T1 - Performance of superposition coding for downlink coordinated two-point system
AU - Fei, Zesong
AU - Yang, Ang
AU - Xing, Chengwen
AU - Yuan, Jinhong
AU - Kuang, Jingming
PY - 2013
Y1 - 2013
N2 - In this correspondence, we consider a downlink coordinated two-point (DCTP) system, where two users communicate with two base stations. A superposition-coding (SC)-based transmission scheme is proposed to improve its error performance. A joint interference-cancellation and maximum-ratio-combining (IC-MRC) detection algorithm is proposed for the SC scheme, which reduces the error probability of the system compared with the classic SC (CSC) detector. Closed-form expressions of the bit error probability (BEP) of the proposed scheme are derived. Under the same power and time constraint, a signal-to-noise ratio (SNR) gain is obtained when the SC scheme is employed. Tight upper bounds of the BEP are derived to provide insight. Optimal power allocation is also derived to optimize the system performance in terms of the BEP.
AB - In this correspondence, we consider a downlink coordinated two-point (DCTP) system, where two users communicate with two base stations. A superposition-coding (SC)-based transmission scheme is proposed to improve its error performance. A joint interference-cancellation and maximum-ratio-combining (IC-MRC) detection algorithm is proposed for the SC scheme, which reduces the error probability of the system compared with the classic SC (CSC) detector. Closed-form expressions of the bit error probability (BEP) of the proposed scheme are derived. Under the same power and time constraint, a signal-to-noise ratio (SNR) gain is obtained when the SC scheme is employed. Tight upper bounds of the BEP are derived to provide insight. Optimal power allocation is also derived to optimize the system performance in terms of the BEP.
KW - Interference canceling
KW - Maximum ratio combining (MRC)
KW - Power allocation
KW - Superposition coding (SC)
UR - https://www.scopus.com/pages/publications/84886666801
U2 - 10.1109/TVT.2013.2256439
DO - 10.1109/TVT.2013.2256439
M3 - Article
AN - SCOPUS:84886666801
SN - 0018-9545
VL - 62
SP - 4057
EP - 4064
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
IS - 8
M1 - 6492110
ER -