Interrelationship between energy efficiency and spectral efficiency in cognitive femtocell networks: A survey

• Published in: Pervasive and mobile computing Vol. 59; p. 101066
• Main Author: Ghosh, Joydev
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.10.2019
• Subjects: Co-operative and non-cooperative architecture; Energy efficiency (EE); Femtocell resource allocation; Spectral efficiency (SE); Spectral efficiency (SE); Energy efficiency (EE); Femtocell resource allocation; Co-operative and non-cooperative architecture
• ISSN: 1574-1192; 1873-1589
• DOI: 10.1016/j.pmcj.2019.101066

In this paper, initially the issues of spectrum allocation among macro (or “licensed”) and Femto (or “unlicensed”) users in an Orthogonal Frequency Division Multiple Access (OFDMA) based dual-layer femtocell networks have dealt with. This research contribution leads to basic coin in the design of next generation (5G) wireless networks. This manuscript exemplifies the trade-off issues of energy efficiency (EE) and spectral efficiency (SE) with both cooperative and non-cooperative architecture in cognitive femtocell networks. The pivotal concepts for each technology are described along with their potential impact on 5G and the research challenges that remain. Further, the trade-off between EE and SE is reposed with respect to the state of the art. The obtained insightful observations from the trade-off analysis of EE ans SE can lead to provide design guideline for 5G wireless Networks.