An energy efficient closed-form power allocation scheme for mimo delay-limited channels with causal CSI

作者：Chen Jia^*; Wong Kai Kit; Zhang Hongke

来源：ICIC Express Letters, 2012, 6(11): 2861-2866.

• Adaptive power allocation
• Block fading channel
• Channel side information
• Closed form
• Delay-limited capacity
• Energy efficient
• Near-optimal performance
• Numerical results
• Optimal power allocation
• Power allocations
• Power minimization

This letter presents a closed-form adaptive power allocation solution to minimize the expected power consumption for meeting a delay-limited capacity constraint of a multiple-input multiple-output (MIMO) block-fading (BF) channel based on causal channel side information (CSI) at the transmitter. Numerical results demonstrate that the proposed solution achieves near-optimal performance within only a fraction of decibel while avoiding the use of the highly complex dynamic programming (DP) needed for obtaining the optimal power allocation.

• 出版日期2012
• 单位北京交通大学