Performance of Adaptive MQAM with Space-time Coding over Nakagami Fading Channel
The performance analysis of multiple antenna systems with adaptive MQAM and space-time coding over flat Nakagami-m fading channels is presented in this paper. The fading gain value is partitioned into a number of regions by which the modulation is adapted according to the region the fading gain falls in. The fading gain region boundaries for attaining maximum spectrum efficiency subject to the target bit error rate (BER) and fixed power constraint are derived. The probability density function of fading gain is given. Based on these results and mathematical calculation, an exact closedform expression for the SE is obtained. Meanwhile, exact BER and tightly approximate closed-form BER expressions are derived for integer and non-integer m, respectively. Simulation results for SE and BER are in good agreement with the theoretical analysis.
Adaptive MQAM space-time coding Nakagami fading channel bit error rate constant power
Xiangbin Yu TingTing Zhou YanFeng Li Xiangbin Yu
College of Information Science and Technology Nanjing University of Aeronautics and Astronautics Nan National Mobile Communications Research Laboratory,Southeast University Nanjing, China
国际会议
南宁
英文
220-223
2010-10-13（万方平台首次上网日期，不代表论文的发表时间）