Delay-Sensitive Area Spectral Efficiency: A Performance Metric for Delay-Constrained Green Networks

作者：Makki Behrooz^*; Fang Chao; Svensson Tommy; Nasiri Kenari Masoumeh; Zorzi Michele

来源：IEEE Transactions on Communications, 2017, 65(6): 2467-2480.

DOI：10.1109/TCOMM.2017.2686395

• Green communications
• finite blocklength analysis
• radio frequency pollution
• Poisson-point process networks
• cognitive radio networks
• area spectral efficiency
• interference channel

This paper introduces a new metric, referred to as delay-sensitive area spectral efficiency (DASE), to analyze the performance of delay-constrained wireless networks. We study DASE in different point-to-point, spectrum sharing, interference, and Poisson-point process-based dense network configurations and with different levels of channel state information (CSI) at the transmitters. Also, we determine the optimal rates/powers optimizing DASE. Finally, we use some recent results on finite block-length codes to analyze the effect of the codewords length on the network DASE. As demonstrated, DASE is a useful metric for analyzing delay-sensitive green networks. Moreover, adaptive power allocation and partial CSI feedback are powerful tools for performance improvement in green networks.

• 出版日期2017-6