Heterogeneous cellular network is considered as an important network architecture to
improve spectral efficiency and energy efficiency. Extensive research has revealed that …

Heterogeneous wireless networks have emerged as a new paradigm to meet the fast
growing wireless network capacity and coverage demands. Due to the co-deployment of …

A multi-tier architecture consisting of a macrocell overlaid with small cells, eg, pico base
station (BS), with provision of relays and device-to-device (D2D) communication is needed …

In this paper, the tradeoff between energy efficiency and spectral efficiency in multicell
heterogeneous networks is investigated. Our objective is to maximize both energy efficiency …

This paper presents a new technique for jointly optimizing energy consumption and quality
of service (QoS) in heterogeneous cellular networks employing fractional frequency reuse …

Partial Spectrum Reuse (PSR) in the second tier of two-tier heterogeneous cellular networks
has a potential to improve spectrum efficiency by reducing inter-cell interference, and thus …

Next generation wireless networks face the challenge of increasing energy consumption
while satisfying the unprecedented increase in the data rate demand. To address this …

Achieving high spectrum efficiency (SE) and energy efficiency (EE) is of primary importance
for the sustainability of future cellular networks, but a key challenge is on balancing the …

Heterogeneous network (HetNet) is a promising cell deployment technique where low
power access points are deployed overlaid on a macrocell system. It attains high throughput …

It is well known that per macro-site spectral efficiency (SE) can be increased through higher
order sectorization (HOS) by radially partitioning the coverage area of each site into multiple …