SCMA Spectral and Energy Efficiency With QoS

Energy Efficiency and Spectral Efficiency Tradeoff in Cognitive Heterogeneous System with Economic Consideration

Rapid development of the wireless communication industry has led to a dramatic increase of energy consumption. Energy Efficiency (EE) for the wireless networks has received considerable attention. Unfortunately, the increasing EE performance often leads to decreasing Spectral Efficiency (SE) performance and vice verse. Hence, it is often urgent to build a tradeoff between EE and SE. In this pap...

Hybrid Energy Supply based Energy Efficiency and Spectral Efficiency Tradeoff for Green Cellular System

The tradeoff between energy efficiency (EE) and spectral efficiency (SE) under the smart grid with joint energy harvesting and grid power supply is considered. The price factor in economics is used to propose the economic EE and SE. Then a new EE-SE tradeoff metric called the EE-SE adaptive tradeoff (ESAT) is built under the fluctuating harvesting energy. Furthermore, the offline optimization p...

Spectral, energy and economic efficiency of relay-aided cellular networks

The authors investigate the relay-aided multicell multiple-input–multiple-output (MIMO) cellular network by comparing both the signal forwarding and interference forwarding relaying paradigms, each employing the adaptive MIMO relay scheme. The spectral, energy and economic efficiency values are utilised as key performance metrics. Furthermore, both radio frequency and circuit power consumption ...

Cross-layer optimization for spectral and energy efficiency

User-Oriented Energy- and Spectral- Efficiency Tradeoff for Wireless Networks

Conventional optimization designs of wireless networks mainly focus on spectral efficiency (SE) as a performance metric. However, as diverse media services are emerging, a green wireless network, which not only meets the quality of experience (QoE) requirements for users and also improves energy efficiency (EE), is the most appropriate solution. In this paper, we firstly propose the unit QoE pe...