In this papers an efficient ordering scheme for an ordered successive interference cancellation detector is determined under the bit error rate minimization criterion for multiple-input multiple-output(MIMO) communication systems using transmission power control. From the convexity of the Q-function, we evaluate the choice of suitable quantization characteristics for both the decoder messages and the received samples in Low Density Parity Check (LDPC)-coded systems using M-QAM schemes. We derive the ordering strategy that makes the channel gains converge to their geometric mean. Based on this approach, the fixed ordering algorithm is first designed, for which the geometric mean is used for a constant threshold using correlation among ordering results.
Sd, Layak Ali; Rao, K. Kishan Dr.; and Bab, M. Sushanth
"Efficient Power Allocation for LDPC-Coded MIMO Systems,"
International Journal of Power System Operation and Energy Management: Vol. 1:
2, Article 9.
Available at: https://www.interscience.in/ijpsoem/vol1/iss2/9